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I was in for a surprise with my previous post. I never expected it to receive so many comments (nearly 200) many of which were quite complimentary. My favourite post so far has been the one on the Revised Batting Average. Possibly the reason for the mixed reactions on that post might have been the fact that the traditional definition of batting average exists in the mind of many people who are not going to accept a change quickly. On the other hand this idea of "Batsman wicket quality" is totally new and many people have appreciated the originality of the theme.
Many good suggestions were received. It was difficult to decide what to take up and what to discard. However I have taken up three tweaks for implementation, in increasing order of difficulty.
Since I do not want to post a follow-up to a follow-up, I will respond individually to comments which I feel deserve a further response.
Quite a few complex computational alternatives have been suggested. I have gone through all these, and most have some merit. However, I have decided to retain the easy-to-understand methodology adopted by me since it would be possible for everyone to follow the computations easily - that axiom has always been the cornerstone of my analysis. I must acknowledge the originality of some of the suggestions, though.
1. Raising the bar to 200 wickets (now only 54 qualifying bowlers in lists)
Quite a few readers have suggested raising the qualifying bar to 200 wickets. This request is like a half-volley outside the off stump, bowled to a set batsman, which would be instantly driven for four. Only a few minutes work was needed here. The revised table is presented below. It should be noted that only the qualifying bar is raised and no other change has been done. Of course, this is only a temporary exercise for this blog and my database table cut-off stays at 100 wickets.
Table 1: Ordered by BQI
SNo Bowler Bow Cty Mat Wkt Sum of BQI BatAvge
1.Caddick A.R RFM Eng 62 234 7706.0 32.93 2.Hoggard M.J RFM Eng 67 248 8157.0 32.89 3.McKenzie G.D RF Aus 60 246 8018.0 32.59 4.Gough D RF Eng 58 229 7238.0 31.61 5.Bedser A.V RFM Eng 51 236 7456.0 31.59 6.Thomson J.R RF Aus 51 200 6291.0 31.45 7.Snow J.A RFM Eng 49 202 6313.0 31.25 8.Underwood D.L LSP Eng 86 297 9212.0 31.02 9.McDermott C.J RF Aus 71 291 8988.0 30.89 10.Lillee D.K RF Aus 70 355 10919.0 30.76 ... ... 50.Abdul Qadir RLB Pak 67 236 6516.0 27.61 51.Waqar Younis RFM Pak 87 373 10156.0 27.23 52.Garner J RF Win 58 259 6903.0 26.65 53.Wasim Akram LFM Pak 104 414 10754.0 25.98 54.MacGill S.C.G RLB Aus 42 203 5231.0 25.77
One reason for the low placement of Muttiah Muralitharan, Wasim Akram and Waqar Younis in this table might be their skill in taking lower-order wickets quickly and effectively. This is indeed a great attribute of these bowlers, and not to be scoffed at. It is true these great bowlers would have taken many top-order wickets and quite a few lower-order wickets also.
Table 2: Ordered by Difference between BQI and Bowling Average
SNo Bowler Bow Cty BowAvge BQI Diff
1.Marshall M.D RF Win 20.95 30.06 9.11 2.Ambrose C.E.L RF Win 20.99 29.85 8.86 3.McGrath G.D RFM Aus 21.64 30.43 8.79 4.Donald A.A RF Saf 22.25 29.27 7.01 5.Trueman F.S RF Eng 21.58 28.44 6.86 6.Lillee D.K RF Aus 23.92 30.76 6.83 7.Hadlee R.J RFM Nzl 22.30 29.09 6.79 8.Bedser A.V RFM Eng 24.90 31.59 6.69 9.Imran Khan RF Pak 22.81 29.44 6.63 10.Pollock S.M RFM Saf 23.12 29.62 6.50 ... ... 50.Harbhajan Singh ROB Ind 31.40 28.71 -2.69 51.Sobers G.St.A LM Win 34.04 30.47 -3.57 52.Danish Kaneria RLB Pak 33.90 29.84 -4.06 53.Abdul Qadir RLB Pak 32.81 27.61 -5.19 54.Vettori D.L LSP Nzl 34.23 28.64 -5.59
A few suggested that instead of determining the measure of difference between BQI and Bowling Average, a measure of quotient, say BQI/Bowling Average can be determined. This has its own merits. However the differences are likely to be minimal: 40 minus 25 and 35 minus 20 both will work out to 15 while 40/25 will work out to 1.6 and 35/20 will work out to 1.75. It is difficult to select one method over the other. What I have done, however is to provide this information also in the Table. It can be seen that there is virtually no difference between Tables 2 and 2A.
Table 2A: Ordered by Quotient between BQI and Bowling Average
SNo Bowler Bow Cty BowAvge BQI Quot
1.Marshall M.D RF Win 20.95 30.06 1.43 2.Ambrose C.E.L RF Win 20.99 29.85 1.42 3.McGrath G.D RFM Aus 21.64 30.43 1.41 4.Trueman F.S RF Eng 21.58 28.44 1.32 5.Donald A.A RF Saf 22.25 29.27 1.32 6.Hadlee R.J RFM Nzl 22.30 29.09 1.30 7.Lillee D.K RF Aus 23.92 30.76 1.29 8.Imran Khan RF Pak 22.81 29.44 1.29 9.Muralitharan M ROB Slk 21.77 27.78 1.28 10.Pollock S.M RFM Saf 23.12 29.62 1.28
2. Taking into account the batsman score at the time of dismissal
Quite a few readers have also suggested that the batsman's score, at the time of dismissal, should be considered. This is an excellent idea and strengthens the concept of quality of wickets taken by bringing in a "when" factor in addition to the "who" factor. This suggestion falls smack in between the previous and the next suggestions in terms of implementation difficulties. I have gone over my notes and come out with the following methodology.
Assign a weightage of 50% to the dismissed batsman's average [current or career, whatever it might be]. Assign the other 50% weightage to the batsman score at the time of dismissal, ranging from 100% credit for dismissal at 0 to 0% credit for any dismissal at or above the batsman average. A few examples are given below.
Batsman Avge Score BQI-Fixed BQI-Variable BQI-Total
Bradman 99.94 0 49.97 49.97 99.94 Bradman 99.94 67 49.97 16.47 66.44 Bradman 99.94 304 49.97 0 49.97 (any score above 99)
Tendulkar 55.58 0 27.79 27.79 55.58 Tendulkar 55.58 25 27.79 15.29 43.08 Tendulkar 55.58 75 27.79 0 27.79 (any score above 55)
Vettori 27.12 0 13.56 13.56 27.12 Vettori 27.12 11 13.56 8.08 21.64 Vettori 27.12 28 13.56 0 13.56 (any score above 27)
Based on the modified calculation methodology, the revised tables are given below. This modification now reflects a significant improvement. It must, however, be noted the revised report is not comparable with the earlier reports since the basis has changed significantly. Previously the bowler got 100% of the Batting Average as credit. Now he gets 50% + x% as credit. As such the average BQI values have dropped and this report should be seen on its own.
The only comparison possible will be between this option and the next option, to be done in future.
Table 4: Ordered by BQI (Revised)
SNo Bowler Bow Cty Mat Wkt SumAvge BQIFor a full list, please click here.
1.Hoggard M.J RFM Eng 67 248 6412.0 25.85 2.Caddick A.R RFM Eng 62 234 6045.2 25.83 3.McKenzie G.D RF Aus 60 246 6146.3 24.98 4.Gough D RF Eng 58 229 5618.7 24.54 5.McGrath G.D RFM Aus 124 563 13766.6 24.45 6.Snow J.A RFM Eng 49 202 4910.8 24.31 7.Marshall M.D RF Win 81 376 8973.4 23.87 8.Ambrose C.E.L RF Win 98 405 9650.2 23.83 9.Bedser A.V RFM Eng 51 236 5581.4 23.65 10.Lillee D.K RF Aus 70 355 8314.5 23.42 ... ... 50.Muralitharan M ROB Slk 118 723 14511.2 20.07 51.Danish Kaneria RLB Pak 51 220 4410.2 20.05 52.Vettori D.L LSP Nzl 78 241 4810.6 19.96 53.Benaud R RLB Aus 63 248 4925.8 19.86 54.MacGill S.C.G RLB Aus 42 203 3807.4 18.76
No one can have complaints on the top ten bowlers. The only surprise is the presence of Matthew Hoggard, Andy Caddick and Darren Gough in the top four. The only reason, as already surmised, could be their playing against Australia and India quite frequently recently. Another reason could be the generally high current batting averages.
Table 5: Ordered by Quotient of BQI and Bowling Average (Revised)
SNo Bowler Bow Cty BowAvge BQI Diff QuotFor a full list, please click here.
1.Ambrose C.E.L RF Win 20.99 23.83 2.84 1.14 2.Marshall M.D RF Win 20.95 23.87 2.92 1.14 3.McGrath G.D RFM Aus 21.64 24.45 2.81 1.13 4.Trueman F.S RF Eng 21.58 22.99 1.41 1.07 5.Donald A.A RF Saf 22.25 22.41 0.16 1.01 6.Hadlee R.J RFM Nzl 22.30 22.49 0.19 1.01 7.Pollock S.M RFM Saf 23.12 23.06 -0.06 1.00 8.Garner J RF Win 20.98 20.86 -0.12 0.99 9.Holding M.A RF Win 23.69 23.37 -0.31 0.99 10.Lillee D.K RF Aus 23.92 23.42 -0.50 0.98 ... ... 50.MacGill S.C.G RLB Aus 28.15 18.76 -9.39 0.67 51.Abdul Qadir RLB Pak 32.81 20.64 -12.17 0.63 52.Sobers G.St.A LM Win 34.04 21.11 -12.92 0.62 53.Danish Kaneria RLB Pak 33.90 20.05 -13.86 0.59 54.Vettori D.L LSP Nzl 34.23 19.96 -14.27 0.58
If one adds Wasim and Waqar to the top ten, this is almost a list of the top dozen pace bowlers of all time.
3. Applying the cumulative batsman average at the beginning of the Test (as against the career average)
Many people suggested applying "upto-current Test" batting average rather than the "career" batting average. This was the most voiced comment and deserves to be considered seriously. This has an impact at the early stages of a batsman's career. I had considered doing this earlier itself but ruled against it because of the complexity involved. Dynamic determination of the "upto-current Test" averages is very cumbersome. This method will slow down any analysis, even considering the high pentium speeds. The only alternative is to determine the "upto-current Test" averages as a one-off exercise for all 1866 Tests, store these static data within the match data for each player and use these any time required. Of course, the current averages will have to be created for each new Test as the data is appended. This exercise requires a redefinition of the database layout and considerable amount of programming since it is a systemic change. I will do this in the near future and make the results available to all the interested readers, even if not through a post in this blog.
It is amusing to see people complaining, even abusing the "Indian ***********" about the absence of their favourite bowlers from the list, most prominently Wasim Akram. Not having understood the analysis is a possible reason. The other reason is the difficulty in accepting any list which does not meet their perceived conclusions.
If I make a list of bowlers who have taken a hat-trick in Tests, Wasim Akram will appear twice. Dennis Lillee, Murali, Anil Kumble, Waqar and Richard Hadlee etc would not be on the list while Peter Petherick, Alok Kapali, Andy Blignaut, James Franklin and Irfan Pathan will appear in that list. Should one disown such a list because of the absence of the marquee names?
Just for the record, here is my own list, in alphabetical order, of the all-time great bowlers, taking all factors into consideration. This should satisfy the readers who should know that there is no narrow-minded chauvinism at work here.
Sydney Barnes, Bishan Bedi, Richard Hadlee, Michael Holding, Lillee, Malcolm Marshall, Glenn McGrath, Muttiah Muralitharan, Waqar Younis, Shane Warne, Wasim Akram.
A few have rightly commented on the dilution of the average because great bowlers tend to take lower-order wickets. Michael Clark and Onkar Walavalkar, among others, have given the example of someone taking all ten wickets would have the average batting average lowered significantly. My submission is that this list does not rate the bowlers at all. It is an alternative measure, hitherto untapped. The same Kumble whose ten-wicket haul in Delhi had an average batting average of 31 would have a higher average of batting average in the West Indies match in St Lucia - in which he took three wickets - of 41. It works both ways and over a long career, these variations even out. The points are well made, I concede.
Other interesting comments are by people complaining that the need is to enjoy the game and not reduce it to numbers or terming such analysis as useless or me as jobless (possibly I am !!!). Let me reply by saying that there are different types of cricket followers. There are those who only like to watch the game, they would not even bother about the batsman's strike-rate or some such simple measure. There are a few who are only number nerds. There are millions in between, the author included, who enjoy both watching the game and analysing it. If one does not want to see such analysis why get into this blog, which is purely an analyst's corner, at all? Entry to this blog is voluntary.
The comments for this post have been the most received so far for any post and have been very enjoyable, whether bouquets or brickbats. I have been made to think in a lateral manner and I thank all those who took the time to comment. It has been a great experience.
Anantha Narayanan has written for ESPNcricinfo and CastrolCricket and worked with a number of companies on their cricket performance ratings-related systemsFeeds: Anantha Narayanan
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Anantha spent the first half of his four-decade working career with corporates like IBM, Shaw Wallace, NCR, Sime Darby and the Spinneys group in IT-related positions. In the second half, he has worked on cricket simulation, ratings, data mining, analysis and writing, amongst other things. He was the creator of the Wisden 100 lists, released in 2001. He has written for ESPNcricinfo and CastrolCricket, and worked extensively with Maruti Motors, Idea Cellular and Castrol on their performance ratings-related systems. He is an armchair connoisseur of most sports. His other passion is tennis, and he thinks Roger Federer is the greatest sportsman to have walked on earth.