Test bowlers analysis: a follow-up
Based on the comments received, both in public and personal mails, I have made some tweaks to the Test Bowlers Analysis

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Match performance ratings
1. Halve the balls bowled base points (a wicket equivalent for about 45 overs).
2. Introduce the bowler strike rate, in relation to team strike rate, as a new base measure, at a relatively lower weight.
3. Minor changes to the batsman dismissed base point calculation, to be based on recent form. This will lower the value of wickets of top batsmen while going through a poor patch and increase the weight of capturing in-form batsmen.
1. Have a cut-off of 200 wickets for the current era, reducing the number from 89 to 44. We have lost Shoaib Akhtar, Steyn, Alderman, Bishop et al. But it cannot be helped.
2. Increase the Wickets weight from 5 points to 7.5 points. Within this, do a 5% on either side (105% & 95%) valuation for away and home wickets.
3. Correspondingly reduce the Wickets per Innspell weight from 5 points to 2.5 points.
4. Remove the Performance Ratio measure, the last column in the table.
5. Instead introduce the Peer Comparison ratios. This time I have allotted an equal weight for strike Rate and accuracy.
6. Introduce a simple 5-Test slice based Consistency index using wickets captured as the indicator. Also include the % of wicket spells out of qualifying spells as a consistency measure.
Revised allocations of the Career points:
The points have gone up to 45 and there is a slight increase in the Match performance points because of changes in Base points calculation.
- Career wickets captured (7.5 points)
- Career wickets per innspell (2.5 points)
- Bowling Strike rate-BpW (9 points)
- Bowling accuracy-RpO (6 points)
- Consistency (4) points
- Average Quality of batsmen dismissed - based on CtD bat avge (5 points)
- Type of wickets captured - Top/Middle order/Late order (3 points)
- Peer ratio: Strike rate (4 points)
- Peer ratio: Accuracy (RpO) (4 points).
Let us look at the revised tables. I am not going to make too many comments and will let the readers draw their own conclusions. The overall feeling I get is that there are not that many changes indicating that the initial methodology itself was quite sound.
1. Current era (1970-2000): Table of top bowlers
No.Cty Bowler BT Total Match Wkt Bow Bow Wkt Wkt Cons Peer Peer Pts Perf Pts StRt Acc BtAvg Qlty Idx S/R RpO Max 85-90 40-45 10.0 9.0 6.0 5.5 2.5 4.0 4.0 4.0
The significant changes can be summarised below.
1. The most significant change is that Lillee and Hadlee exchange places with Hadlee moving to second and Lillee to fourth place. Warne remains sandwiched between these two great bowlers.
2. Imran, Marshall, McGrath and Waqar retain their places in the top-10 indicating that the changes cancelled each other out and their relative placings remained.
3. The next significant change is that Kumble moves out of the top-10 and is replaced by Donald. This is probably due to the differential weighing of home and away wickets. Donald and Ambrose are welcome additions to the top-10.
4. The sub-200 wicket brigade of Reid, Croft, Akhtar and Lawson move out of the top-20 and are replaced by the worthy quintet of Shaun Pollock, Garner, Walsh, Willis and McDermott.
5. The next significant change is that Harbhajan Singh moves out of the top-20 and is replaced by Botham. This is probably due to the differential weighing of home and away wickets.
To view the complete list, please click here.
2. Middle era (1920-1969): Table of top bowlers
No.Cty Bowler BT Total Match Wkt Bow Bow Wkt Wkt Cons Peer Peer Pts Perf Pts StRt Acc BtAvg Qlty Idx S/R RpO Max 85-90 40-45 10.0 9.0 6.0 5.5 2.5 4.0 4.0 4.0
To view the complete list, please click here.
3. Pre-WW1 era (1877-1914): Table of top bowlers
No.Cty Bowler BT Total Match Wkt Bow Bow Wkt Wkt Cons Peer Peer Pts Perf Pts StRt Acc BtAvg Qlty Idx S/R RpO Max 85-90 40-45 10.0 9.0 6.0 5.5 2.5 4.0 4.0 4.0
4. Across all Tests: Table of top pace bowlers
No.Cty Bowler BT Total Match Wkt Bow Bow Wkt Wkt Cons Peer Peer Pts Perf Pts StRt Acc BtAvg Qlty Idx S/R RpO Max 85-90 40-45 10.0 9.0 6.0 5.5 2.5 4.0 4.0 4.0
To view the complete list, please click here.
5. Across all Tests: Table of top spinners
No.Cty Bowler BT Total Match Wkt Bow Bow Wkt Wkt Cons Peer Peer Pts Perf Pts StRt Acc BtAvg Qlty Idx S/R RpO Max 85-90 40-45 10.0 9.0 6.0 5.5 2.5 4.0 4.0 4.0
To view the complete list, please click here.
I have done another selection. From each era I have picked the best 5-bowler balanced attack. This is my selection. You could do your own selection and mail me for publication. There are no restrictions whatsoever. This is your opportunity to have Marshall or Snow or Imran Khan or whoever lead the attack.
Current: Holding, McGrath, Wasim Akram, Warne and Muralitharan.
(Wasim Akram gets the nod over Waqar Younis for the sake of variety).
Middle: Trueman, Larwood, Davidson, Grimmett, Bedi.
Pre-WW1: Barnes, Lohmann, Turner, Spofforth, Briggs.
In the next few days I will come out with the Peer-based tables for different aspects of Test Batting.
Anantha Narayanan has written for ESPNcricinfo and CastrolCricket and worked with a number of companies on their cricket performance ratings-related systems