Calculate the Duckworth-Lewis-Stern (DLS) revised target for rain-interrupted cricket matches. Enter Team A's runs, wickets lost, maximum overs, then Team B's overs faced, wickets lost, and any overs lost to interruption — and get back Team B's par score (revised target) based on available resources.
DLS Target for Team B
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Team A Resources Used (%)
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Team B Resources Available (%)
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Par Score (at current point)
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Runs Team B Still Needs
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The Duckworth-Lewis-Stern (DLS) method is a mathematical formula used to set a fair revised target for the team batting second in rain-interrupted limited-overs cricket matches. It was developed by statisticians Frank Duckworth and Tony Lewis, later refined by Steven Stern, and is the official method used by the ICC for all international matches.
Resources refer to the combination of overs remaining and wickets in hand available to a batting team. A team starting their innings with all 50 overs and 10 wickets has 100% of their resources. As overs are bowled and wickets fall, resources are consumed. The DLS method uses resource percentages to calculate a fair revised target.
The DLS par score formula is: Team B's target = Team A's score × (Team B's resources / Team A's resources). If Team A completed their innings uninterrupted, their resource percentage is 100%, so the formula simplifies to: Target = Team A's score × Team B's resource percentage. The result is rounded up to the nearest whole number.
In a One Day International (ODI), a minimum of 20 overs must be faced by the team batting second for the match to have a DLS result. In T20 matches, the minimum is typically 5 overs. If this threshold is not met, the match is either tied, abandoned, or rescheduled depending on the competition rules.
When Team 2's innings is delayed, they receive fewer overs than Team 1 had. Their resource percentage is calculated based on their reduced overs with all 10 wickets intact. Team 1's resource percentage remains 100% if their innings was uninterrupted. The revised target is then set proportionally.
If rain stops play during Team 2's innings, the remaining overs are recalculated. The resources lost due to the interruption (the overs no longer available) are subtracted from Team 2's remaining resources at the point of interruption. A new par score is calculated reflecting the revised resources available.
Before the DLS method, the most common approaches were the Run Rate method (comparing average runs per over) and the Most Productive Overs method. Both were considered unfair because they did not account for wickets in hand. The DLS method replaced them as the standard because it considers both overs and wickets simultaneously.
Yes. You can use this calculator for T20 matches by setting the maximum overs to 20. The same DLS resource percentage table and formula applies to T20 internationals and most domestic T20 competitions, though some competitions may use slightly customised resource tables approved by their governing body.