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Cricket · Rain Rules

Duckworth-Lewis Par Score Calculator

Estimate a simplified DLS-style par score for rain-affected limited-overs chases.

Last updated: 4 October 2026

Reviewed by Jordan Morley, FA Level 2 Football Coach

Par score estimate

Approx. par / target
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Frequently asked questions

Is this the official DLS?

No — it's a simplified approximation for a rough idea. Official DLS uses copyrighted resource tables and computer software. Use this for casual reference only.

Why was the DLS method introduced instead of simple run-rate comparisons?

Simple run-rate methods (like the old 'highest scoring overs' rule) could unfairly swing a match when rain interrupted an innings, because they ignored how many wickets a team had in hand. DLS accounts for both overs remaining and wickets lost, giving a fairer resource-based target when a match is shortened.