What does run ratio calculate in Cricket?

Question

I have no idea what this represents. obviously it has something to do with runs scored but in relation to what? thanks for your time

Answer 1

The Run Rate is the run scored divided by the over faced minus the runs conceded divided by the overs bowled.

The net run rate for any team is simply the rate at which it is scoring runs minus the rate at which it is conceding them. It is, therefore, the total runs it has scored divided by the total number of overs it has played minus the total number of runs it has conceded divided by the total number of overs it has bowled.

Example: If Team A scores 250 runs in 50 overs, its run rate per over is 250 divided by 50, that is 5. If Team B scores 200 runs, its run rate is 4. Hence, Team A’s net run rate is 5 minus 4, that is, 1.

There is a caveat. In calculating run rates -- whether the scoring rate or the conceding rate -- a team that has been bowled out without batting through the 50 overs is treated as if it has played its full quota of overs. Thus, for instance, when Bermuda was bowled out by Sri Lanka for 78 in 24.4 overs, its scoring rate would be calculated not as 78 divided by 24.4 but as 78 divided by 50. Similarly, Sri Lanka’s conceding rate would also be 78 divided by 50.

Does batting first or second matter?

For any one match it does not. A team that scores, say 450 and bowls out the opposition for 50 would have an NRR of 8 for the match. So also would a team that bowled first, conceded 100 and then chased the total in 10 overs. However, when its NRR for all the matches is taken into account, the former result would be more beneficial. To understand why, consider this:

-- Suppose team A has already played one match in which it scored 250 in 50 overs and then bowled out the opposition for 200. Now, in its next match if its scores 450 and bowls out the opposition for 50, its NRR at this stage would be 450 plus 250 (i.e 700) divided by 100 -- which is 7 -- minus 50 plus 200 (i.e 250) divided by 100 -- which is 2.5 -- working out to +4.5.

If instead, it had in the second match bowled first, conceded 100 and scored 101 in 10 overs, its NRR (by a similar calculation) would be just +2.85.

Thus, despite the NRRs for individual matches being the same in both scenarios, the total NRR is quite different. This happens because the calculations ensure that high-scoring matches carry greater weight than low scoring ones.

Does this mean anything for the India-Bangladesh-Sri Lanka situation?

Yes, it does. If India beats Sri Lanka and Sri Lanka beats Bangladesh, whether Bangladesh bats first or second in its match against Bermuda could be crucial in deciding whether it can catch up with India’s NRR. If Bermuda bats first, it might be next to impossible for Bangladesh to do it.

Answer 2

In the sport of cricket, the Duckworth-Lewis method (D/L method) is a mathematical way to calculate the target score for the team batting second in a one-day cricket or Twenty-20 cricket match interrupted by weather or other circumstance. It is generally accepted to be a fair and accurate method of setting a target score, but as it attempts to predict what would have happened had the game come to its natural conclusion, it generates some controversy. The D/L method was devised by two English statisticians, Frank Duckworth and Tony Lewis.

Answer 3

Calculate run actually divided run one stapes to another