Mathematics of runrate: how is it calculated and how can it be helpful for India?


  • Know what is the math of net run rate, how is it calculated?
  • How is the net run rate useful for India to reach the semi-finals?
  • Maths will change if New Zealand lose to Afghanistan

Many maths is being worked on whether India will be able to reach the semi-finals of the T20 World Cup. One of its major maths is the runerate. South Africa won four of their five league matches, but could not make it to the World Cup semi-finals. It may come as a surprise, but cricket is a game of net run rate.

There is a lot of discussion about net run rate in this T20 World Cup. It has created a mold on the hard work of South Africa. Despite a stellar performance in this year’s T20 World Cup, South Africa could not make it to the last four. England, Australia and South Africa all have 8 points each, but England and Australia advanced to the semi-finals as their net run rate is higher than that of South Africa.

Two important matches have been played in Group 1 on Saturday. The match was between Australia vs West Indies and England vs South Africa. There was a tussle between Australia and South Africa over the run rate to enter the semi-finals. Both teams won the match 3–3 and went on to win the final match for tickets to the semi-finals as well as a good net run rate. On the basis of which they had to become the second team to reach the semi-finals of Group 1.

Both the teams won their respective matches. But South Africa finished third in their group. The reason was runrate. Because of this she was ruled out of the tournament. India is in Group 2. Something similar has happened here. Pakistan has already qualified in this group, while the second place is to be played between New Zealand, Afghanistan and India.

When does net runrate start working and how is it calculated?

When teams are level by points at the group stage, nut runrates can be used to break the deadlock. From which it can be guessed which team will progress in the tournament and whose journey will end. Often the net run rate becomes important after winning a match and so it was South Africa’s turn.

How is run rate calculated?

For which the total runs scored / total overs bowled is reduced by the total runs scored / total overs bowled.

Now let’s see how much net run rate India is after playing four matches.

India scored runs in four matches

151/7 against Pakistan – 20 overs
110/7 against New Zealand – 20 overs
210/2 – 20 overs against Afghanistan
89/2 6.3 overs against Scotland

India scored 560 runs in 66.3 overs. To account for this, 66.5 overs will be written.

India Total Runs 560 / 66.5 = 8.42

One thing to note here is that wickets don’t count.

If you get all out first in the allotted 20 overs, it will count as 20 overs.

Runs scored by the opposing team against India

Pakistan 152/00 -17.5 overs
New Zealand 111/2 -14.3 overs
Afghanistan 144 / 7 – 20 overs
Scotland 85/10 – 17.4 overs

Total runs will be 72.33 overs with 492 runs in 72.2 overs.

Total runs scored by the opposing team 492 / 72.33 = 6.802

So calculate net run rate of India
8.421 -6.802 i.e. 1.619 (Positive)

Now today is the match between New Zealand and Afghanistan and India has to play the match against Namibia. Now if New Zealand loses to Afghanistan and India wins from Namibia, then the points of both the teams will be 6-6. At such a time, the team which is ahead in terms of net run rate will reach the semi-finals.

But if New Zealand wins today’s match, then the math of net run rate will be over. Because New Zealand will reach 8 in the points table.

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