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June 16, 2008

India stay fourth

M J Manohar Rao and Srinivas Bhogle

India (53.48) have retained their fourth place in the Rediff ODI rankings -- but fifth-placed Pakistan (51.51) are fast closing the gap after beating India in the final of the tri-series in Bangladesh.

Australia (68.29) remain at the top, but South Africa (64.67) aren't too far behind.

New Zealand (56.51) are third, but won't stay there for too long if they continue to falter in the NatWest Series against England.

Table A shows the current ODI rankings.

TABLE A: CURRENT ODI RANKINGS (as on June 16, 2008)

Team WI TI ODI RBI=
WI * 0.80 + TI * 0.20 diff: 22.4.08 -> 16.6.08 Ranking

Australia 66.61 75.00 68.29 +0.05 1

South Africa 60.01 83.33 64.67 +0.04 2

New Zealand 58.14 50.00 56.51 +0.09 3

India 51.22 62.50 53.48 -1.64 4

Pakistan 47.72 66.67 51.51 +1.62 5

West Indies 38.65 75.00 45.92 +0.03 6

England 44.59 50.00 45.67 +0.05 7

Sri Lanka 48.71 20.00 42.97 +0.67 8

Zimbabwe 10.42 0.00 8.34 -0.01 9

Bangladesh 10.29 0.00 8.23 -0.12 10

The corresponding Reliance Mobile ICC ODI rankings (as on June 16, 2008) are South Africa (127), Australia (127), New Zealand (113), India (113), Pakistan (111), Sri Lanka (105), England (105), West Indies (99), Bangladesh (46) and Zimbabwe (18).

Details

It is almost impossible to define a 'perfect' ranking scheme in any sport. However schemes that use reasonable evaluation criteria, and the most appropriate datasets, usually give the best results.

The Rediff ODI rating, now published regularly for more than six years, is a judicious combination of every team's weighted index (WI) and tournament index (TI).

The WI, based on the most recent ODI encounters between every pair of teams as shown in Table B, is essentially a weighted average that considers the 'opposition strength' (because wins against strong opponents must be rewarded more) and the 'home-away-neutral' factors (because teams usually win more at home, and lose more playing 'away').

The TI factors in a team's performance in tournaments and series (and thereby seeks to better reward wins in 'big' matches).

TABLE B: ODI SCORECARD (as on June 16, 2008; used to compute WI)

Aus Ban Eng Ind NZ Pak RSA SL WI Zim

Australia H
A
N
3 / 3
3 / 3
3 / 4
3 / 6
4 / 7
2 / 2
2.5 / 6
4.5/7
1.5 / 2
2.5/3
0 / 3
2 / 2
4 / 5
0 / 0
1 / 1
3 / 4
2 / 5
2 / 2
3 / 4
3 / 5
4 / 4
2.5/3
5 / 8
3 / 5
3.5/4
4 / 4
0 / 0

Bangladesh H
A
N
0 / 3
0 / 3
1 / 4
0 / 3
0 / 3
0 / 1
0 / 3
0 / 0
1 / 2
0 / 3
0 / 3
0 / 3
0 / 4
0 / 5
0 / 2
0 / 3
0 / 3
1 / 2
1 / 3
0 / 3
0 / 2
0.5/3
0 / 4
0 / 2
5 / 5
5 / 9
1 / 1

England H
A
N
3 /7
3 / 6
0 / 2
3 / 3
3 / 3
1 / 1
4 / 7
1 / 7
0 / 2
0 / 2
1.5/ 5
2 / 5
2.5/5
2 / 5
1 / 1
3 / 4
2 / 7
0 / 1
0 / 5
3 / 5
3 / 5
1 / 3
3.5/6
1 / 1
1.5/3
4 / 4
1 / 1

India H
A
N
2.5/7
3.5 / 6
0.5 / 2
0 / 0
3 / 3
1 / 2
6/ 7
3 / 7
2 / 2
1.5/3
2 / 7
1 / 3
3 / 5
4 / 5
2 / 4
2 / 4
0 / 4
2 / 3
2 / 3
0 / 3
2.5/ 4
3 / 5
1 / 5
3 / 4
3 / 5
2 / 2
4 / 4

New Zealand H
A
N
3 / 3
0.5/3
0 / 2
3 / 3
3 / 3
3 / 3
3.5 / 5
2 / 2
3 / 5
5 / 7
1.5/3
2 / 3
4 / 5
0 / 5
1 / 1
5 / 6
1/3
2 / 2
2/4
0 / 0
0 / 2
4 / 5
2.5/6
3 / 4
1 / 3
2 / 2
1 / 1

Pakistan H
A
N
0 / 0
1 / 5
0 / 1
5 / 5
4 / 4
2 / 2
3 / 5
2.5/5
0 / 1
1 / 5
2 / 5
2 / 4
5 / 5
1 / 5
0 / 1
2 / 5
1 / 4
0 / 1
2 / 3
2.5/3
2 / 3
3 / 4
3 / 4
2 / 3
5 / 5
5 / 5
3 / 3

South Africa H
A
N
3 /5
1 / 4
2 / 2
3 /3
3 / 3
1 / 2
5 / 7
1 / 4
1 / 1
4 / 4
2/ 4
1 / 3
2/3
1 / 6
0 / 2
3 / 4
3 / 5
1 / 1
4.5/6
0 / 5
4 / 6
5/5
6 / 6
0 / 1
3 / 3
3 / 3
3 / 3

Sri Lanka H
A
N
2 / 5
1 / 4
0 / 4
3 / 3
2 / 3
2 / 2
2 / 5
5 / 5
2 / 5
3 / 3
1 / 3
1.5 / 4
0 / 0
2 / 4
2 / 2
0.5/3
1 / 3
1 / 3
5 / 5
1.5/6
2 / 6
1 / 2
0.5/3
1 / 1
2 / 2
5 / 5
1 / 1

West Indies H
A
N
3 / 8
0.5/3
2 / 5
4 / 4
2.5/3
2 / 2
2.5/6
2 / 3
0 / 1
4 / 5
2 / 5
1 / 4
3.5/6
1 / 5
1 / 4
1 / 4
1 / 4
1 / 3
0 / 6
0/5
1 / 1
2.5/3
1 / 2
0 / 1
6.5/7
3 / 4
1 / 1

Zimbabwe H
A
N
0 / 4
0.5/4
0 / 0
4 / 9
0 / 5
0 / 1
0 / 4
1.5/3
0 / 1
0 / 2
2 / 5
0 / 4
0 / 2
2 / 3
0 / 1
0 / 5
0 / 5
0 / 3
0 / 3
0 / 3
0 / 3
0 / 5
0 / 2
0 / 1
1 / 4
0.5/7
0 / 1

The TI is currently based on a time 'window' spanning the last 12-13 months; i.e. the period June 2007 to June 2008 (see Table C).

TABLE C: TOURNAMENT POINTS TALLY (as on June 16, 2008; used to compute TI)

Team I vs SA
Jun-
Jul 07 E vs WI
Jul 07 B vs SL
Jul 07 SA vs Z
Sep 07 NW
Aug-
Sep 07 E vs SL
Oct 07 I vs A
Sep-
Oct 07 P vs SA
Oct 07 I vs P
Nov 07 NZ vs SA
Nov-
Dec 07 WI vs
Z
Nov-
Dec 07 A vs NZ
Dec 07 NZ vs B
Dec 07 P vs Z
Jan 08 SA vs WI
Jan-
Feb 08 NZ vs E
Feb 08 CB Ser
Feb-
Mar 08 B vs SA
Mar 08 WI vs SL
Apr 08 P vs B
Apr 08 KitPly
Ser
Jun 08 Score TI

Australia 1 / 1 1 / 1; 1 / 2 3 / 4 75.00

Bangladesh 0 / 1 0 / 1 0 / 1 0 / 1 0 / 2 0 / 6 0.00

England 0 / 1 1 / 1 1 / 1 0 / 1 2 / 4 50.00

India 1 / 1 0 / 1 0 / 1 1 / 1 2 / 2 1 / 2 5 / 8 62.50

New Zealand 0 / 1 0 / 1 1 / 1 1 / 1 2 / 4 50.00

Pakistan 0 / 1 0 / 1 1 / 1 1 / 1 2 / 2 4 / 6 66.67

South Africa 0 / 1 1 / 1 1 / 1 1 / 1 1 / 1 1 / 1 5 / 6 83.33

Sri Lanka 1 / 1 0 / 1 0 / 2 0 / 1 1 / 5 20.00

West Indies 1 / 1 1 / 1 0 / 1 1 / 1 3 / 4 75.00

Zimbabwe 0 / 1 0 / 1 0 / 1 0 / 3 0.00

Our next update later this month after the England-New Zealand ODI series in England.