Series · ongoing

Rain Rules

What happens to a cricket match when the heavens open, and whether the maths that decides it is fair.

Limited-overs cricket needs a result, and rain doesn’t care. Since the 1980s the game has tried one formula after another to decide what a chasing side “should” have scored when play stops: run rates, most productive overs, and finally the resource tables of Frank Duckworth and Tony Lewis.

This series starts with the evidence: every rain-hit match on record, and a replay of thousands of rain-free chases under each rule to see which ones tilt the game toward the chasing side.

In this series

  1. 1Scorebook · ToolsRain Stopped PlayEvery rain-hit match in the Cricsheet archive, filterable by format, country and year.
  2. 2The Numbers · DataWho Wins When It RainsRain-free chases replayed under six rain rules, to see which ones favour the chasing side.
  3. 3The Long Room · EssaysSomeone, SomewhereHow a farce in Sydney, a remark on the radio and two English statisticians gave cricket a rain rule it could live with.
  4. 4Scorebook · ToolsThe D/L CalculatorWork out a revised target and par sheet with the Duckworth–Lewis Standard Edition, the version anyone can do by hand.
  5. 5The Nets · GamesBeat the ParSix real chases, six sudden downpours. Guess the Duckworth–Lewis par score and see how your over goes.
  6. 6Classics · Great matchesThe Wrong NumberDurban, 2003. South Africa hit the six they thought they needed, blocked the next ball, and walked off into the rain and out of their own World Cup.