Can anyone tell me how to calculate net run rate?

Answer 1

net run rate=(total runs scored/total overs bowled)-(total runs conceeded/total overs bowled)

Answer 2

As name suggests,it is rate at which runs are scored/conceded to that of competitor.This statistics provides information about quality of batting/bowling,for evaluation/comparing to other teams

Answer 3

Net Run Rate (NRR) is a statistic used in the sport of cricket. It is the most commonly used method of separating teams in one-day league competitions, effectively acting as the Cricket equivalent of "goal difference" in football/soccer.

[edit] Description in the Laws of the Game

"A team's net run rate is calculated by deducting from the average runs per over scored by that team, the average runs per over scored against that team.

In the event of a team being all out in less than its full quota of overs, the calculation of its net run rate shall be based on the full quota of overs to which it would have been entitled and not on the number of overs in which the team was dismissed."

[edit] Step by step explanation

A teams run rate (RR) is their total number of runs divided by overs faced. As an over is made up of six balls, each ball counts for 1/6 of an over for the purposes of calculating the net run rate, despite being normally written in cricket's notation as .1 of an over.

So if a team scores 250 runs off 50 overs then their runrate is \frac{250}{50} = 5. If they got that same score off 47.3 overs, their RR would be \frac{250}{47.5} \approx 5.26

The concept of net run rate involves taking the opponents' final run rate away from the team's run rate. The only complication is that if a team is bowled out, it is not the balls faced which their score is divided by; instead the full fifty over quota is used.

Usually, runs and overs bowled are summed together throughout a season to compare teams in a league table, as the following formula shows:

\mbox{net run rate }=\frac{\mbox{total runs scored }}{\mbox{total overs faced}}-\frac{\mbox{total runs conceded }}{\mbox{total overs bowled}}

[edit] Scenarios

All scenarios assume One-day International rules with 50 overs per side.

1. Side that bats first wins

* Team A bat first and set a target of 287-6 off their full quota of fifty overs. Team B fail in their run chase, early losses causing them to struggle to 243-8 in their 50 overs.
* Team A's runrate is \frac{287}{50} = 5.74
* Team B's runrate is \frac{243}{50} = 4.86
* Team A's NRR for this game is 5.74 − 4.86 = 0.88 Assuming this was the first game of the season, their NRR for the league table would be +0.88.
* Team B's NRR for this game is 4.86 − 5.74 = −0.88. If this was the first game of the season, their NRR for the league table would be −0.88.

2. Side that bats second wins

* Team A bat first and set a target of 265-8 off their full quota of fifty overs. Team B successfully chase, getting their winning runs with a four with sixteen balls remaining, leaving them on 267-5.
* Team A's runrate is \frac{265}{50} = 5.12
* Team B faced 47.2 overs, so their runrate is \frac{267}{47\tfrac{1}{3}} = \frac{267}{\tfrac{142}{3}} = \frac{801}{142} \approx 5.64
* Assuming that Team A and Team B had previously played as in the game in scenario one, the new net run rate for team A would be \frac{287+265}{50+ 50}-\frac{243+267}{50+47\tfrac{1}{3}} = \frac{552}{100}-\frac{510}{97\tfrac{1}{3}} \approx 0.28
* Assuming instead that Team B had beaten Team A as in scenario one, team B's net run rate would have been \frac{287+267}{50+47\tfrac{1}{3}}-\frac{243+265}{50+ 50} = \frac{554}{97\tfrac{1}{3}}-\frac{508}{100} \approx 0.61

3. Side that bats first is bowled out. Side batting second wins.

* Team A bat first and are skittled out for 127 off 25.4 overs. Team B reach the target for the loss of four wickets off 25.5 overs, scoring a single to win the game and end with 128 runs.
* Despite Team A's runrate for the balls they faced being 127 / 25.667 = 4.95 (2dp) because they were bowled out the entire 50 overs are added to their total overs faced tally for the tournament, and Team B are credited with having bowled 50 overs.
* Team B actually scored at a slower pace, however they managed to protect their wickets. Thus, only the 25 5/6 overs are added to the seasonal tally.

4. Side that bats second is bowled out. Side batting first wins.

* Team A bat first and set a formidable 295-7 off their complement of 50 overs. Team B never get close, being bowled out for 184 off 35.4 overs.
* As in scenario 2, 295 runs and 50 overs are added to Team A's tally.
* However, Team B, despite facing only 35.4 overs, have faced 50 overs according to the NRR calculations, and Team A have bowled 50 overs.

5. Both sides are bowled out, the team batting first therefore taking the points.

* Team A bat first, and manage 117 off 24 overs on a difficult playing surface. Team B fall agonizingly short, reaching 112 off 23.3 overs.
* In this case, both teams get 50 overs both faced and bowled in the overs column for the season, just as in example 1.

6. The game ends in a tie

* Runs and overs are added as in the examples above, with teams bowled out being credited with their full quota of overs. Thus, the net run rate may actually change after a tie.