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June 27, 2008
The night-watchman story - Part IIPosted by Anantha Narayanan at in Trivia - batting
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Note: David Barry has sent me an invaluable file containing the day-end batsmen data for all the tests. I myself had gone to my own Text archive and found that this information is available for most matches. However parsing those files would have required lot more effort than parsing the CSV file David has sent.
I will complete the work and come out with a revised article incorporating the actual player data. I will also do a comparison of the actual results and my own derived results. However this will be after some time after looking at a few other interesting ideas already in the pipeline.
I owe David one for this.
There was a suggestion to use the day-end player data which is available in text scorecards. While accepting that this is available in most scorecards, I have to express the inability to do so at the current stage because I have to download quite a few scorecards, do a text-based data mining to extract this data, do some complex parsing work and link this data to the player and fall-of-wicket data already available. This is certainly possible. However, this will take too much time and resources and it is not possible to do this at this instance. Possibly at a later date.
The question of setting up 25.0 as the cut-off batting average has already been raised in two forms. One, questioning the arbitrary nature of this cut-off value, and two, the applicability of lowering this for the pre-WW1 Tests in which the batting averages were consistently lower.
It is impossible for me to work out an algorithm to do a more objective determination of this cut-off value. Whatever I do is likely to be questioned and be subjected to unacceptable variations. I have done this summary of batting averages, over 1879 tests, to substantiate the 25.0 cut-off.
Total Bat Runs: 1719071 Innings: 66117 Not Outs: 8622 Bat Average: 29.90
This is the overall average. This is about 10% below the mid point of the highest average (68.8, excluding Bradman's freakish figure) and lowest average (0.0). As such a figure which is 25% below the mid point figure seems to be the ideal cut-off point for determining night-watchmen. This works out to 25.8, which is just above the current cut-off. Hence the cut-off of 25.0 is retained.
However there is a justification to have this cut-off at a lower figure of 20.0 for all Tests played before 1914. This has excluded some night-watchman instances. The number has now decreased from 563 to 552 since 11 instances which were earlier determined to be night-watchman instances are now outside the
scope.
There was a suggestion that a situation where a No.7 batsman such as Vettori is substituted by a no.11 batsman such as Martin should be considered as a night-watchman instance. In this particular case, the average differential, 26+ against 2+, makes it a correct and valid suggestion. However, this cannot be generalised. If Kumble's place is taken by Sreesanth, the situation is murky. Kumble has an average of 18.25 and Sreesanth has an average of 15.50. By no stretch of imagination can we deem this to be a night-watchman situation. For that matter these numbers could even be reversed. Hence, while readily acknowledging the validity of the readers' suggestion, I have to, with reluctance, stick to my decision that only nos. 3-6 will be considered as night-watchman positions.
Then we come to the requirement that we have to consider the batting average of the batsman being replaced. This is something I am very loath to do because of the many inherent weaknesses. Until now I have determined a night-watchman situation solely by the measures of the specific batsman, what was his career-to-date batting average, what was his BPA and which position did he bat in. When I am not even sure who would have been the next batsman, such a move is fraught with problems.
Country summary (1879 tests)
Cty NWI Tests Tests/NWI # 3-6 inns Inns/NWIAus: 96 696 7.25 4688 48.8
Bng: 5 53 10.60 417 83.4
Eng: 124 873 7.04 5880 47.4
Ind: 56 418 7.46 2797 49.9
Nzl: 50 342 6.84 2403 48.0
Pak: 62 335 5.40 2220 35.8
Saf: 55 332 6.03 2318 42.1
Slk: 22 177 8.04 1181 53.7
Win: 69 448 6.49 3023 43.8
Zim: 13 83 6.49 607 46.7
Icc: 0 1 0.00 8 0
552 3758 6.80 (3.40)
Pakistan has used night-watchmen most often and Bangladesh the least. Sri Lanka have been quite reluctant to use the night-watchman option but South Africa haven't been averse to doing so. However, Bangladesh figures may not be accurate since only three of their batsmen have averages higher than 25.0 and a few night-watchman innings would have been lost. I did not want to lower the cut-off for them only to 20.0, which might have been the correct thing to do. It wasn't worth the effort since it might only add couple more instances.
The last column is a measure of night-watchman occurence based on the number of qualifying innings (nos. 3-6) for the concerned country. Here again Pakistan leads with one instance every 36 innings, followed by South Africa, once every 44 innings. Bangladesh, possibly for reasons already discussed, emplys this once every 83 innings. Just for information, Bangladesh have played 106 Test innings. Out of these, they have lost fewer than four wickets only three times - once the innings didn't start, once they lost three wickets and once they lost just two.
Overall the night-watchman instance occurs once in about three-and-a-half Tests.
Conclusion
Now for the difficlut task of determining whether the night-watchman experiment has been a success or not.
There was a very good suggestion to consider factors other than the night-watchman innings itself, such as how the innings progressed, how much the next batsman scored et al to determine whether a night-watchman stint was a success. I am not very comfortable with the idea of linking the actual performance of the night-watchman to what happened in the game itself. If Gillespie came in as night-watchman and lasted 100 balls, it was an uqualified success. Whether Michael Clarke, who Gillespie replaced, scored 0 or 100 the next day doesn't really matter. Whether Australia won or lost beacuse of this decision again does not matter. We are only looking at whether the night-watchman did his job or not. If he scored 1 in 50 balls he had succeeded. If he scored 9 in 15 balls, got out and the next batsman had to bat the same day, his stint was a failure.
Assuming that no captain would be dumb enough to send a night-watchman an hour before close of play, we are looking at a possible maximum of around 8-10 overs to be played during the evening. We must also assume that the night-watchman should last for some time the next day. A valid conclusion is that if a night-watchman bats for 30 balls, he has more than done his job, since he has probably been in the middle for around 45 minutes.
The balls faced will either be the actual number (available in most of the matches) or the one derived from the team scoring rate, as explained in Part 1. While accepting that there could be very good scores by night-watchman of 0s, 1s, 2s ..., there is no way to actually cull out this data. The only concession I will make is that any night-watchman who scores 15 or more has done his job. Outside edges and wild swings (unlikely) could get him around 10 runs but not 15. It is very likely that he has faced a fair number of deliveries, possibly 30+, to score 15 or more. This criteria can now be applied irrespective of the method of arriving at the "balls played" information. 221 out of the 552 night-watchmen innings fall under this either-or criteria (at least 30 balls faced or 15 runs scored).
Out of the total population of 552, it can be deduced that 221 have succeeded in their task, making the success rate of the night-watchmen exercise around 40%. This figure is certainly much more than what I expected. The success stories are very significant, as were the cases with Gillespie, Hoggard, Tudor and Larwood. One great factor in these night-watchmen decisions is that they are sent in with the expectation that he might fail more often than not, especially if his name does not start with 'G'. If they succeed, that is a bonus, and if not, other than the loss of one late-order wicket, no serious damage has occurred. Hence a success rate of 40% seems beyond all expectation.
We have to conclude that, over time, the night-watchman experiment has been a great success. Having said that, there is a lot to be said for top-order batsmen taking up the responsibility of batting in difficult conditions, a task for which they are eminently trained, both in skill and temparament.
I must acknowledge the contributions of Dr.Ashwin Mahesh, my co-founder at Thirdslip.Com who, long time back, mooted the idea of using the difference between the BPA and actual batting position to identify a night-watchman situation.
Click here to see the complete list of night-watchman instances
Click here to see the list of successful night-watchman instances
Click here to see the list of unsuccessful night-watchman instances
June 20, 2008
The best night-watchman in Tests - Part IPosted by Anantha Narayanan at in Trivia - batting
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The night-watchman concept in Test cricket is a paradox. A batsman of far lesser ability is sent to bat in place of a far more accomplished batsman, in possibly inferior batting conditions. The better batsman is preserved to bat when conditions are better. But this is as much part of Test cricket as white clothing, follow-on, new ball after 80 overs et al and deserves an in-depth look.
This time I have taken a conscious decision to do this post in two parts. The first part will deal with the individual batsmen performances while the second one will analyse the whole night-watchman canvas by team and by period. In addition, I will take a view on whether the night-watchman concept has been successful. I will also incorporate relevant readers' suggestions.
This analysis is based on the earlier study I have made on the Test batting positions. In that analysis, we looked at batting positions as a measure. To summarize that analysis, I had looked at the career Batting Position Average (BPA) of Test batsmen, keeping the two opening positions as 1. That index is used to have an analytical look at the night-watchmen.
Using night-watchmen as a tactic has existed down the ages. The night-watchmen regularly padded up an hour before close, and would walk in at the fall of a wicket. If he survived, great. Else, send another one hoping that at least he would survive. I have seen matches in which two such night-watchmen had failed and the regularly scheduled player was forced to bat, this time with his team having lost two more wickets. However, there have been many cases where the night-watchman survived that day and for quite some time the next day.
The Australians, led by Steve Waugh, changed things. A top-order batsman was expected to bat whatever be the time of the day, be it 10.47am or 16.53pm. There is no denying that this worked. Overall this seems to me to be the correct approach. Most other teams, for that matter even the Australians now, take the nigt-watchmen approach.
Our interest here is analytical. Let us first define a night-watchman. This is very difficult especially as there is very little data available on things like the time of the day when a batsman came to the wicket. So we can only take an algorithmic approach using the BPA and the batting position the batsman batted in. We may get it right 95% of the time, but that is enough.
A simple starting definition may be that a night-watchman is one who bats (somewhat) higher than his intended position. But we have to take care of situations such as an accomplished batsman like Gilchrist opening for Australia or Wasim Akram/Dhoni coming in earlier to speed up the scoring. Gilchrist's Batting Position Index in Tests is 6.68, indicating that he is a batsman who has batted at No.7 most of his career. Wasim Akram, scorer of three Test
centuries and a BPA of 8.1, batting at number 3 or 4, would have to be taken care of. In order to do a correct job of selecting true night-watchmen for our analysis, it is necessary to define a number of related parameters other than batting position alone.
1. First our knowledge, research and intuition lets us decide who is not a night-watchman. Any batsman whose career-to-date batting average is higher than 25.00 cannot be classified as a night-watchman. No captain is going to risk a batsman of the calibre of Vettori (ave 26.65) to protect Styris (36.05). His wicket is too valuable to risk losing. In this regard, we also have to take care of genuine batsmen like Wasim Akram (22.64), Benaud (24.46) etc who have batting averages between 20 and 25. A slight tweak takes care of such batsmen.
2. We should also ignore players whose BPA is less than 7.00. If a player normally bats in positions 1-6, and he moves up, he cannot be treated as a night-watchman. For instance a batsman with a batting average of 24 and BPA of 5.2 opens the batting, this is not an example of a night-watchman.
3. We have to look at it the other way as well: only innings in which tailenders have batted at positions 1-6 will qualify as night-watchmen innings. A no.10 batsman batting at no.8 is certainly not a night-watchman instance.
4. Finally, the key criterion. An innings will be considered as a night-watchmen innings if the difference between the batsman's BPA (rounded to nearest integer) and the one he actually bats in is greater than or equal to 3. Examples, a no.8 batsman batting at 5 or above, a no.10 batsman opening, a no.9 batsman sent at the fall of first wicket and so on.
5. There are situations when a batsmen such as Irfan Pathan or Derek Murray might genuinely have been asked to open a few times for strategic purposes. These are clearly non-night-watchman situations. However there is no way I can separate out these since their rounded BPA might be 7.0 and they have batted at no.1. The only way out seems to take a courageous decision that if a lower level batsman bats at the opening position, it is not a night-watchman situation. It is reasonable to expect that no captain would send his no.9 batsman to open, solely to protect his opening batsman, however late in the day the innings starts. This will also take out quite a few pre-WW1 batsmen such as Blackham who have opened at will. A total of 127 opening batsman innings have been handled by low order batsmen with BPA greater than or equal to 7.
It is true that many of the above criteria may seem arbitrary. However, before readers rush to comment after a 10-minute perusal of the article, I would like to remind them that I have been studying this fascinating aspect for over 2 years and have run programs with varying parameters many times before settling on the methodology. However, I am certain that by the time all readers' comments are received, the analysis would be improved considerably based on their feedback.
A. Analysis results
A total of 563 innings qualify under these criteria. It is possible that we might have missed a few genuine night-watchman innings and included a few non-night-watchman innings. I have aimed for 95% accuracy and am confident that I have achieved that. This works to slightly less than one in three tests. A perusal of the recent Test scorecards will indicate that this is a fairly accurate proportion.
These 563 innings are analysed in different ways below.
B. Runs scored
The top 10 individual scores are listed below.
Year MtNo Batsman For Vs Bat BPA Runs(BallsFaced) Batting Avge
Act Calc CTD* Career
2006 1799 Gillespie J.N Aus Bng 3 9.0 201*(425) (425) 15.69 [18.78]
1977 0811 Mann A.L Aus Ind 3 7.0 105 (n/a) (214) 18.33 [23.62]
1999 1455 Tudor A.J Eng Nzl 3 8.0 99*(119) (119) 22.33 [19.08]
1933 0224 Larwood H Eng Aus 4 9.0 98 (n/a) (221) 16.12 [19.40]
1983 0944 Hemmings E.E Eng Aus 3 9.0 95 (n/a) (174) 12.88 [22.53]
1978 0832 Wasim Bari Pak Ind 3 9.0 85 (n/a) (125) 15.33 [15.88]
2000 1486 Boje N Saf Ind 3 8.0 85 (198) (198) 14.00 [25.23]
1885 0018 Jarvis A.H Aus Eng 5 8.0 82 (n/a) (322) 16.83 [16.83]
1948 0302 Bedser A.V Eng Aus 4 9.0 79 (n/a) (183) 15.06 [12.75]
1959 0478 Nadkarni R.G Ind Eng 4 7.0 76 (n/a) (223) 21.78 [25.71]
But what about a few centuries which are being discussed as "Night-watchmen centuries". Let us look at all these.
Year MtNo Batsman For Vs Bat BPA Runs(BallsFaced) Batting Avge
Act Calc CTD Career
2006 1799 Gillespie J.N Aus Bng 3 9.0 201*(425) (425) 15.69 [18.78]
1885 0018 Jarvis A.H Aus Eng 5 8.0 82 (n/a) (322) 16.83 [16.83]
1959 0478 Nadkarni R.G Ind Eng 4 7.0 76 (n/a) (223) 21.78 [25.71]
1933 0224 Larwood H Eng Aus 4 9.0 98 (n/a) (221) 16.12 [19.40]
1977 0811 Mann A.L Aus Ind 3 7.0 105 (n/a) (214) 18.33 [23.62]
2000 1486 Boje N Saf Ind 3 8.0 85 (198) (198) 14.00 [25.23]
2002 1597 Harris C.Z Nzl Eng 4 7.0 71 (185) (185) 19.40 [20.45]
1948 0302 Bedser A.V Eng Aus 4 9.0 79 (n/a) (183) 15.06 [12.75]
1983 0944 Hemmings E.E Eng Aus 3 9.0 95 (n/a) (174) 12.88 [22.53]
1994 1246 de Villiers P.S Saf Aus 5 10.0 30 (170) (170) 8.00 [18.89]
Player Inns Runs Balls BpISaqlain (Pak) 11 98 384 34.9
Hoggard (Eng) 11 39 249 22.6
Gillespie (Aus) 9 327 1040 116.0
Warne (Aus) 7 34 92 12.9
Headley (Ind) 7 30 177 25.3
Prasanna (Ind) 7 61
Morrison (Nzl) 7 7
Venkat (Ind) 7 4
Saqlain Mushtaq (very effectively) and Hoggard (less effectively) lead the field, followed by Gillespie, the night-watchman par excellence. However Gillespie is way ahead of the others in the key indicator, Balls per innings. Warne just makes to the list, having batted in positions 3,4 and 5 few times. He is, surprisingly, a failure as a night-watchman, scoring zero in three of his seven inngs. Maybe he resented being sent as a night-watchman. Venkataraghavan is still worse, scoring only 4 runs in his 7 innings, including 5 zeros. Maybe he also felt offended.
Morrison was the biggest failure, scoring 7 runs in one innings and not opening his account in the six other innings. It is a miracle why the captains continued to use Morrison as the night-watchman. One possibility is that he lasted quite a few balls without opening his account. I wait to be enlightened. Prasanna was better, scoring 61 runs in 7 attempts. Headley was also quite good, scoring 30 runs and lasting 177 balls.
E. Conclusion
Who has been the best night-watchman in history. Easy to guess. Jason Gillespie, in 9 innings has scored a total of 327 runs at an average (no doubt aided by the unbeaten 201) of 40.87. More relevantly, he has faced a total of 1040 balls in these 9 innings, an average of 116 balls per innings. His two great innings total 590 balls. However, note his sequence, in terms of balls played: 425, 165, 145, 79, 73, 71, 43, 35 and 5. Only one failure. He sold his wicket dearly. He wins the title hands down.
What has been the best night-watchman innings played. No need to look beyond Gillespie's two classics, his match-saving effort at Chennai and the mammoth 201 against Bangladesh. As far as I am (and most people are) concerned, the Chennai innings is the best, by a mile. It was a watershed innings and changed the course of one of the most important series of recent times. If India had won on that fourth day, they might very well be sitting at the top of the ICC Test Rankings now.
The second part will follow in a week's time.
June 11, 2008
'Unfulfilled' team innings in ODI matchesPosted by Anantha Narayanan at in Trivia - batting
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England: 250 for 2 in 50.0 overs lost to Australia: 251 for 7 in 49.3 overs
A single line summary of a match. It conveys a lot. We do not need any further match or player information to sense that there was something wrong as far as the England innings was concerned. What were the England batsmen thinking? Whoever be the Australian bowlers, should they not have gone on to score, say, 270 for 6 or for that matter, 290 for 9. Especially as the Australian bowlers seemed to have taken very few wickets, indicating a batsmen-friendly pitch and/or lack of penetration. Let us ignore the current favourite broadcasters' jargon, "no bounce", "two-paced", "not coming on to bat", "ball stopping" et al. The bottom line, especially in view of the Australian reply, was that English batsmen messed up, and messed up big time.
If England were 150 for 0/1/2 at the end of 40 overs, one cannot blame the batsmen who played the last 10 overs. The initial 40 overs were played too slowly. If England were 180 for 0/1/2 at the end of 40 overs, one cannot blame the early batsmen since there was a good platform. The blame rests squarely on the last 10 overs' strategy. In any case, there was a huge strategy mis-fire.
It is a tricky bit of data mining work to unearth such matches. The criteria, gathered after a lot of hits and misses, are outlined below. We cannot afford to have too many matches to study, nor, for that matter, too few.
1. First batting team to lose the match. I have couple of matches relating to a chasing situation at the end of the article.
2. Losing team to have quite a number of wickets at their disposal at the innings end, say no less than 6.
3. Winning team not to have too much of the team resources (as nicely defined by Duckworth and Lewis) at their disposal. In other words, not too many wickets left nor too many deliveries. If the chasing team won with 7/8 wickets in hand and over 5 overs at their disposal, anything more the first batting team did would probably have been insufficient.
4. No D/L coming into play. D/L throws everything out of gear. In the 2003 WC Final, after Australia scored 359, if the match had been abandoned after 20 overs, India could have won with scores of 90/0, 102/1 or 118/3 or lost with scores of 88/0, 100/1 or 116/3. Most sane analyses go out of the window in these matches.
It does not matter at all in these innings which batsmen were still available to bat at the end. Once it has been concluded that there were no less than 7 batsmen available, it does not matter a wee bit, whether this lot of seven or more contained Shahid Afridi or Chris Martin.
It must be remembered that the chasing team has the major advantage that they know their target and they could afford to lose the wickets, even in a heap, in order to reach the target. The first batting team does not have such luxuries. However there is no getting away from the fact, in such matches, that all the resources at their disposal were not put to 100% use. It is also possible that, especially in matches where teams have scored high and lost, the bowlers could be blamed. However that is outside the scope of this analysis.
The idea is to clearly separate matches in which the first batting team messed up in a big way. The reasons why they did so is not important. It is enough to isolate such matches. I have identified a total of 14 matches. An additional interesting data I have shown is the unbeaten partnership at the end of the innings. This will let us get a slightly better idea of the innings.
Team batting first
Odi# 717. Pakistan vs West Indies
Played on 23 February 1992 at Melbourne Cricket Ground.
West Indies won by 10 wickets.
Pakistan: 220 for 2 wkt(s) in 50.0 overs. Unbeaten 3rd wkt ptshp: 123
Only one match in which the losing team lost just 2 wickets.
1. ODI # 2096. South Africa vs West Indies.
Played on 4 February 2004 at New Wanderers Stadium, Johannesburg.
South Africa won by 4 wickets.
West Indies: 304 for 2 wkt(s) in 50.0 overs. Unbeaten 3rd wkt ptshp: 92
Now for the teams which lost 3 wickets.
2. ODI # 1391. England vs Sri Lanka.
Played on 23 January 1999 at Adelaide Oval.
Sri Lanka won by 1 wicket.
England: 302 for 3 wkt(s) in 50.0 overs. Unbeaten 4th wkt ptshp: 154
3. ODI # 538. India vs New Zealand.
Played on 17 December 1988 at Moti Bagh Stadium, Baroda.
India won by 2 wickets.
New Zealand: 278 for 3 wkt(s) in 50.0 overs. Unbeaten 4th wkt ptshp: 67
4. ODI # 1572. India vs South Africa.
Played on 9 March 2000 at Nehru Stadium, Kochi.
India won by 3 wickets.
South Africa: 301 for 3 wkt(s) in 50.0 overs. Unbeaten 4th wkt ptshp: 52
5. ODI # 1824. South Africa vs Australia.
Played on 6 April 2002 at St George's Park, Port Elizabeth.
Australia won by 3 wickets.
South Africa: 326 for 3 wkt(s) in 50.0 overs. Unbeaten 4th wkt ptshp: 132
6. ODI # 301. Australia vs West Indies.
Played on 10 February 1985 at Melbourne Cricket Ground.
West Indies won by 4 wickets.
Australia: 271 for 3 wkt(s) in 50.0 overs. Unbeaten 4th wkt ptshp: 68
7. ODI # 794. India vs England.
Played on 18 January 1993 at Sawai Mansingh Stadium, Jaipur.
England won by 4 wickets.
India: 223 for 3 wkt(s) in 48.0 overs. Unbeaten 4th wkt ptshp: 164
8. ODI # 615. West Indies vs England.
Played on 3 April 1990 at Kensington Oval, Bridgetown, Barbados.
West Indies won by 4 wickets.
England: 214 for 3 wkt(s) in 38.0 overs. Unbeaten 4th wkt ptshp: 53
The matches in which the first batting team lost 4 wickets and the second batting team lost 7 wickets or more are shown in a summary form.
9.2349 2006 Aus 434/4 in 50.0 Saf 438/9 in 49.5 won by 1 wicket 10.2499 2007 Ire 284/4 in 50.0 Ken 286/9 in 49.0 won by 1 wicket 11.1035 1996 Aus 242/4 in 50.0 Slk 246/7 in 49.4 won by 3 wickets 12.0716 1992 Zim 312/4 in 50.0 Slk 313/7 in 49.2 won by 3 wickets 13.2439 2006 Win 272/4 in 50.0 Eng 276/7 in 48.3 won by 3 wickets 14.2184 2004 Zim 252/4 in 50.0 Pak 258/7 in 48.1 won by 3 wickets
The first match needs a mention. I hope a reader does not come back and blast me for implying that Australia should have scored a few more runs. It was South Africa's relentless aggression and continuous attacking play that finally won them the match. Having said this I must mention that Lee could score only a single off the last two balls bowled by Telemachus. A four or two would have helped.
In the second match, K.J.O'Brien scored 142 in 123 for Ireland. Kenya were 231 for 9 and a great Irish victory seemed certaiin. Then Odoyo, with a blistering 61 in 36 added 55 for the tenth wicket in 5 overs and won. A few more runsfor Ireland and who knows what might have happened.
No particlular team has messed up their first innings, in this regard, more often than the others, although, for the record, Australia have been the culprit three times. Sri Lanka does not appear in this list even once.
Team batting second
Now for the team batting second. Here I have ignored all matches decided through D/L or equivalent methods. The reason has already been explained. In other matches, only reasonably close matches, where the margin of loss was less than 30 runs, are considered. That leaves us with only 3 competitive matches.
1. ODI # 56. Pakistan vs India.
Played on 3 November 1978 at Zafar Ali Stadium, Sahiwal.
Pakistan won (conceded by India).
Pakistan: 205 for 7 wkt(s) in 40.0 overs
2. ODI # 160. Pakistan vs Australia.
Played on 8 October 1982 at Gaddafi Stadium, Lahore.
Pakistan won by 28 runs.
Pakistan: 234 for 3 wkt(s) in 40.0 overs
3. ODI # 333. Sri Lanka vs India.
Played on 21 September 1985 at P.Saravanamuttu Stadium, Colombo.
Sri Lanka won by 14 runs.
Sri Lanka: 171 for 5 wkt(s) in 28.0 overs
Finally I cannot close this without referring to this particular classic (mis)match.
ODI # 19. England vs India.
Played on 7 June 1975 at Lord's, London.
England won by 202 runs.
England: 334 for 4 wkt(s) in 60.0 overs
At least for this post let me hope that readers do not respond with messages such as "why was abc not considered", "xyz is superior to pqr", "efg was the best" et al. Consider these as the only matches to be looked into.
Comments such as "This is a useless analysis" will not be published since there is no insight provided. On the other hand, a comment such as "The analysis is flawed since only the wickets lost are taken into account. The balls remaining should also be taken into consideration" will be published since that is a genuine comment on the article and adds value.
June 3, 2008
Why Australia's 2001 line-up is the best ODI side- A follow-upPosted by Anantha Narayanan at in Trivia - batting
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I must thank the readers for the interest they have shown. I must confess that I keep learning new things because of the interaction. There are new perspectives which had escaped me the first time around.
I have gone through all the responses. I have adopted the following three significant improvements. There were a few other valid suggestions which have not been implemented. These are summarised at the end, with my reasons for not implementing them.
1. The most important and often-repeated comment was that the game has changed considerably over the years and the analysis should make allowances for such changes. Most of these readers' observations are subjective in nature (Difficult to score runs in the 80s; Scoring rates nowadays are higher; Easier to chase targets nowadays; et al). However since these have been made with a deep understanding of the game, there is no way I can refuse to accept these, especially as I myself share these observations. It is my responsibility, as a computer analyst to translate such subjective inferences into objective, verifiable and acceptable algorithms. I have done this adjustment in my Test analyses, weighting down/up pre-WW1 bowling/batting figures respectively. It is high time the ODI analyses is also done this way. This has been explained in depth later.
2. The second concerns the late order batsmen. I had given equal weighting of 0.25 to each of these 4 batsmen. Most readers have accepted this. However I myself felt that it is wrong to treat Akram at the same level, as a batsman, say, as Sikander Bakht. The weightings, explained later, have been graded now.
3. The third change concerns home advantage. Barring the great teams, most other teams struggle outside their home country and do well in their own backyard. The advantage of 50000 (give or take a few thousand) fans at Kolkatta or Lahore or MCG or Kingston rooting for the home team can never be ignored. Though some might say that India enjoy home advantage wherever they play.
1. Decade-level adjustments
To do this I have split the matches into four decades, the (swinging) 1970s, the (exciting) 1980s, the (nervous) 1990s and the (Twenty20-driven) 2000s. Please see the following table, first for batting and then for bowling. Incidentally this concept itself deserves of an independent post.
In both tables I have used the base factor as the All match numbers, which is presented in the first column. I concede that this is heavily weighted towards the later years. However there is no other way. If I take the median match (no.1354) as a cut-off point, that match itself was played as recently as 1998. So whatever one does, this problem will remain.
| All Matches | 1970s | 1980s | 1990s | 2000s | |
|---|---|---|---|---|---|
| Matches played | 2703 | 82 | 516 | 933 | 1172 |
| Batsmen innings | 46968 | 1418 | 8838 | 16266 | 20446 |
| Balls bowled | 1445956 | 46208 | 277516 | 505727 | 616505 |
| Runs per match | 414 | 369 | 393 | 414 | 426 |
| Runs per innings | 23.83 | 21.36 | 22.96 | 23.76 | 24.44 |
| % of all-matches avge | 100.0% | 89.6% | 96.3% | 99.7% | 102.5% |
| Runs per ball | 0.774 | 0.656 | 0.731 | 0.764 | 0.811 |
| % of all-matches avge | 100.0% | 84.7% | 94.4% | 98.7% | 104.7% |
a. There is a clear increase in the Runs per match, which has been done mainly to show the trend.
b. Runs per innings, which is used to avoid the not outs impact, has clearly shown a move up, from 21.36 during the 1970s to 24.44 for the current decade matches.
c. Similarly, the scoring rate (runs per ball) has shown a clear move upward, from 0.656 (Rpo of 3.94) during the 1970s to 0.811 (Rpo of 4.86) now.
The adjustment is done in the following manner.
The Batting Index figures are adjusted by the Decade adjustment values. In other words, the Batting Average Index is divided by 0.896 for the 1970s teams, by 0.963 for the 1980s teams, by 0.997 for the 1990s teams and by 1.025 for the current teams. Similarly the Batting Strike Rate Index is divided by 0.847 for the 1970s teams, by 0.944 for the 1980s teams, by 0.987 for the 1990s teams and by 1.047 for the current teams.
| All Matches | 1970s | 1980s | 1990s | 2000s | |
|---|---|---|---|---|---|
| Matches played | 2703 | 82 | 516 | 933 | 1172 |
| Balls bowled | 1445956 | 46208 | 277516 | 505727 | 616505 |
| Team Runs conceded | 1119374 | 30292 | 202884 | 386508 | 499690 |
| Wickets captured | 38120 | 1156 | 7097 | 13215 | 16652 |
| Wkts per match | 14.10 | 14.10 | 13.75 | 14.16 | 14.21 |
| Bowling Average | 29.36 | 26.20 | 28.59 | 29.25 | 30.01 |
| % of all-matches avge | 100.0% | 89.2% | 97.4% | 99.6% | 102.2% |
| Balls per wkt | 37.9 | 40.0 | 39.1 | 38.3 | 37.0 |
a. It is surprising, maybe not so, that the average number of wickets captured per match has remained fairly constant over these 30-odd years.
b. The bowling averages have shown a clear move upwards from 26.20 during the 1970s to 30.01 for the current decade. A minor concession, likely to have little impact on the final numbers, is made in that the bowling average for this purpose is calculated based on the team runs and team wickets.
c. The balls per wkt figures show a slight reduction as time has gone by, with the difference being only around 7.5%. It's given here only for information.
The adjustment is done in the following manner.
The Bowling Index figures are adjusted by the Decade adjustment values. In other words, the Bowling Index is multiplied by 0.892 for the 1970s teams, by 0.974 for the 1980s teams, by 0.996 for the 1990s teams and by 1.022 for the current teams.
Maybe it's not perfect, but this significant tweak has gone a long way in redressing the imbalance, as the results show.
2. Changing the weightings given to late order batsmen
Jeff Grimshaw has demonstrated that the higher average batsmen would, most probably, be able to bat through their 50 (or whatever) overs without even approaching the late-order batsmen. On the other hand, the lower-average, quicker-scoring batsmen might need the late-order batsmen often. It is, however, essential that we recognize the quality of late-order batsmen. After all, Vettori and Martin are poles apart, when it comes to batting. Hence the weightage is changed, as follows.
No. 8 Batsman: 0.40
No. 9 Batsman: 0.30
No.10 Batsman: 0.20
No.11 Batsman: 0.10
3. Home Advantage
I have effected a 5% increase for all the Index values for home teams for reasons already explained. This value is not applied for the hundreds of matches played in neutral venues. The only question is, why 5%, why not 2.5% or why not 10%. I have no answer other than my gut feel that the additional weighting cannot exceed the value assigned for Fielding.
The revised tables are summarized below.
Batting
1. 2004 2196 1 AUS (vs Nzl) 19.95 20.68 40.63;
Gilchrist A.C, Hayden M.L, Ponting R.T, Lehmann D.S, Martyn D.R, Symonds A, Clarke M.J.
(after 21 other Australian teams (as compared to 107 Australian teams earlier))
23. 1999 1390 2 SAF (vs Win) 18.80 20.63 39.43
Kirsten G, Gibbs H.H, Kallis J.H, Cullinan D.J, Cronje W.J, Rhodes J.N, Pollock S.M.
(after 44 other teams)
68. 2005 2237 2 IND (vs Pak) 18.35 20.27 38.62 (Match lost)
Sehwag V, Tendulkar S.R, Dhoni M.S, Ganguly S.C, Dravid R, Yuvraj Singh, Kaif M.
Bowling
1. 1981 0116 2 WIN (vs Eng) 1.62 39.53 41.15
Roberts A.M.E, Holding M.A, Garner J, Croft C.E.H + Richards/Gomes.
2. 2001 1670 2 AUS (vs Win) 2.55 38.57 41.12
Warne S.K, Lee B, Bracken N.W, McGrath G.D, Symonds A.
3. 1981 0115 1 WIN (vs Eng) 1.37 39.53 40.90
Roberts A.M.E, Garner J, Holding M.A, Croft C.E.H + Lloyd/Gomes.
4. 2000 1552 2 AUS (vs Ind) 2.58 38.22 40.80
Warne S.K, Lee B, Fleming D.W, McGrath G.D, S.R.Waugh.
5. 2000 1622 2 AUS (vs Saf) 2.56 38.21 40.77
Warne S.K, Lee S, Gillespie J.N, Lee B, McGrath G.D.
It is in Bowling that these changes are felt a lot. The top 5 teams are now composed of West Indian and Australian teams since the Australian bowlers have got their Indices adjusted accordingly.
Team Strength
1. 2001 1670 2 AUS (vs Win) 39.47 38.57 2.55 80.59
Gilchrist A.C, Waugh M.E, Ponting R.T, Bevan M.G, Lehmann D.S, Martyn D.R, Symonds A,
Warne S.K, Lee B, Bracken N.W, McGrath G.D.
(after 24 other Australian teams (as compared to 144 Australian teams earlier))
26. 1983 0189 1 WIN (vs Ind) 37.28 38.24 2.15 77.67
Greenidge C.G, Haynes D.L, Richards I.V.A, Logie A.L, Lloyd C.H, Gomes H.A, Dujon P.J.L,
Marshall M.D, Roberts A.M.E, Holding M.A, Garner J.
(after 19 other Australian/West Indian teams)
46. 2002 1918 1 SAF (vs Pak) 37.48 37.17 2.45 77.10
Smith G.C, Gibbs H.H, Dippenaar H.H, Kallis J.H, Rhodes J.N, Boucher M.V, Pollock S.M,
Klusener L, Hall A.J, Donald A.A, Ntini M.
You can note the significant change. The 1983 West Indian team moves up considerably. The top 100 now has teams from Australia, West Indies and South Africa.
The best teams for all the 10 Test-playing countries can be viewed by clicking here.
Not considered
1. Career-to-date average or recent form adjusted values instead of career average
I evaluated this option but decided not to do the change. The reasons are many. Richards is an outstanding 47.00(Avge) / .887(Strt) batsman. If his mid-career figures were lower or his recent form was not good, that does not make him any lesser, at any time in his career. Similarly for other great players such as Tendulkar, Lara, Wasim Akram, McGrath et al. The other reason is that between the 11 players these numbers would get evened out. The last reason is that this will involve too much work, for very little improvemet.
2. RPI instead of Batting Average
This was also considered seriously. I did not do this because that meant I would be going away from the widely accepted Batting Average. It is true that a Hussey or Bevan might gain in view of the high number of Not outs. However this is more than compensated by the fact that they would have had very little time to settle down, they would have to throw the bat around and in general play for the team score. The early batsmen, on the other hand, may be hampered by the high number of dismissals. However they would have time to settle down, play themselves in and in general play longer innings.
3. Consider the two Bowling parameters separately
This was also a good suggestion. However, I could not get away from the fact that the bowling average is a composite value of the two components (Bowling Average = Strike Rate x Accuracy). I also did some trial calculations. These showed that the impact of splitting the two components would be minimal. Hence I retained the Bowling Average.
4. Finally the Fielding
Everyone knows that Jonty Rhodes was a great fielder. But then how great a fielder was he? Was he greater than Colin Bland, Roger Harper, Ricky Ponting et al or not? Is there a quantifiable and verifiable measure available? Even run-outs started getting attributed to specific fielders only recently. Possibly the greatest fielding display of all time was effected by Richards during the 1975 World Cup final against Australia. His three run-outs do not find a place on the scorecard.
We do not have a measure for fielding. Until we get that (even then what about the earlier matches) it will be impossible to quantify fielding. I am not going to do a subjective error-prone Fielding Index. Instead I have done a low weighting of 5% for Fielding, done using the available Catches/Stumpings values.
I have also resisted the temptation to come out with an all-time best world team. That is outside the scope of this team-oriented analysis and I want to avoid making the mistake I made in my previous post. Surely there will be another time when such an analysis will be done.
Y Anantha Narayanan has over 35 years of IT background. Over the past 15 years, he has been concentrating on Cricket analysis and software development. He has been involved with StumpVision, Wisden, Hallmark Software and his own site www.thirdslip.com during this period.
David Barry was cricket-starved when teaching English in France, and study of cricket stats was his only way to stay sane. He is now back in Brisbane, Australia, and working towards a PhD in Physics. He once played for the worst team in the G-division of Muscat's cricket league.
Rajesh After doing an MBA in marketing and working in an advertising agency, S Rajesh decided that his skills might be put to better use by number-crunching on cricket. He hasn’t regretted that decision in the last six years, and edits the Numbers Game column on cricinfo.com every Friday.
Rajesh Kumar A product of Delhi's Shri Ram College of Commerce, Rajesh Kumar pursued cricket statistics at an early age before joining a nationalised bank, where he served for over two decades. He opted for a VRS nine years back, and hasn't regretted that decision. Apart from being a regular contributor to the Wisden Cricketers' Almanack over the years, Rajesh brought out five World Cup editions for Australia's Peter Murray. He has assisted Bill Frindall from 1980 till his death in January 2009 for the publications of various editions of The Wisden Book of Test Cricket, The Guinness Book of Cricket Facts and Feats, The Wisden Book of Cricket Records, Limited-Overs International Cricket and Playfair Cricket Annual.
Gabriel Rogers was born on the ninety-somethingth birthday of Test cricket, and his fate may well have been sealed from that moment. His day-job revolves around medical statistics, and he is interested in applying principles from the field to the analysis of cricket data. Gabriel has spent most of his life in the south-west of England, but has recently moved to Manchester; he hasn't quite worked out yet whether living in a city with a Test ground is adequate compensation for moving away from his beloved Somerset CCC.
Ric Finlay Having just taken early retirement as a Mathematics teacher in Hobart, Ric Finlay now fully devotes his time to recording cricket, both past and present, for the popular CSW cricket database, along with his colleague David Fitzgerald (www.tastats.com.au). His interest in the game is inversely proportional to his ability as a player, but he did once score a century after being dropped at 3 and running out three of his team-mates. His first memory of international cricket is the 1962-63 MCC tour of Australia, described as one of the most boring ever. Totally fascinated, he was instantly hooked, and has never looked back. Author of three books on cricket of a historical nature, he has provided statistics and scored for radio and television cricket coverage since 1983.