如何计算Net Run Rate
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Net Run Rate (NRR) is a cricket statistic used to rank teams with equal points in tournament tables. It measures the difference between a team's scoring rate and the scoring rate of teams against them.
公式
NRR = (runs_scored / overs_faced) - (runs_conceded / overs_bowled)
- RS
- Runs scored (runs) — Total runs batted by team
- OF
- Overs faced (overs) — Overs of bowling faced (1 over = 6 balls)
- RC
- Runs conceded (runs) — Runs given up while bowling
- OB
- Overs bowled (overs) — Overs bowled by team
分步指南
- 1NRR = (Runs Scored ÷ Overs Faced) − (Runs Conceded ÷ Overs Bowled)
- 2Positive NRR means the team scores faster than they concede
- 3Negative NRR means they concede runs faster than they score
- 4All-out teams are counted as using their full allocation of overs
例题解析
输入
280 in 50 overs vs 240 in 50 overs
结果
NRR = 5.60 − 4.80 = +0.800
输入
150 all out (scored fast) vs 200 in 50
结果
NRR may be negative despite winning
常见问题
What is a good NRR?
Positive NRR is good; higher is better. 0.5+ is strong. Negative NRR indicates team is underperforming.
How is NRR used?
Tiebreaker in group stages (cricket tournaments). If two teams have equal points, higher NRR wins group.
Is NRR biased?
Somewhat. Early runs matter less; late runs matter more. Large wins inflate NRR; narrow losses reduce it.
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