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DLS Calculator

Revised target & live par score for a rain-interrupted limited-overs match

Only matters if Team 1's own innings was also cut short. Leave overs faced at the scheduled overs and wickets at 10 if Team 1 batted their full/normal innings.

Fill these in to see whether Team 2 is currently ahead or behind the required rate mid-innings.

Revised target for Team 2
—
100.0%
Team 1 Resources Used
100.0%
Team 2 Resources Available
This uses the publicly published 2002 Duckworth/Lewis Standard Edition resource table, not the current proprietary ICC/Stern parameters used for official international matches — treat results as a close estimate, not the broadcast-official number.

What Is the DLS Method?

The Duckworth-Lewis-Stern (DLS) method recalculates a fair target score when a limited-overs cricket match is interrupted by weather or another stoppage, so neither team is unfairly punished for lost overs. It works by tracking each team's combined "resources" — overs remaining and wickets in hand — rather than just overs alone.

How to Use This Calculator

1

Enter the scheduled overs per innings and Team 1's final score.

2

Enter the overs now available to Team 2 after the reduction.

3

The revised target updates instantly — add Team 2's current score for a live par comparison.

How the Revised Target Is Calculated

Each team's resource percentage comes from a published table indexed by overs remaining and wickets lost, where a full uninterrupted innings equals 100%. Team 2's par score is Team 1 score × (Team 2 resource % / Team 1 resource %), and the winning target is that par score rounded down, plus one run.

Entering Overs and Balls

Overs fields use cricket notation, not decimals: 33.4 means 33 overs and 4 balls, not 33.4 overs. Type the ball count (0–5) after the point and the calculator converts it correctly.

Is This the Official ICC Calculator?

No. Duckworth, Lewis, and Stern's exact current resource parameters are commercially licensed to the ICC and not publicly released. This tool uses the resource table the pair themselves published in 2002, which is very close but can differ slightly from the official on-screen number in a televised match.

DLS Calculator Use Cases

🌧️

Rain delays

Work out the new target the moment overs are cut for the chasing team.

📺

Following along at home

Check whether the chasing side is currently ahead or behind the DLS par score.

🎓

Learning how DLS works

See the resource percentages behind the target instead of just the final number.

Limitations of This Calculator

  • Uses the 2002 public Standard Edition table, not the current proprietary Professional Edition/Stern parameters
  • Doesn't model more than one interruption to each innings
  • Not a substitute for the official ICC-certified DLS software used in professional matches

Benefits of Using This Tool

  • Instant revised target as you type
  • Live par score to track a match in progress
  • Handles a shortened Team 1 innings too, not just Team 2's
  • Free, runs entirely in your browser, no sign-up

Frequently Asked Questions

Is this the official ICC DLS calculator?

No. It uses the publicly published 2002 Duckworth/Lewis resource table (the Standard Edition). Official international matches use the current ICC-certified Duckworth-Lewis-Stern software, whose exact resource parameters are proprietary and not publicly available, so results here can differ slightly from the official broadcast number.

What is a "resource percentage"?

It's how much scoring potential a team has left, combining overs remaining and wickets in hand into a single percentage, where a full uninterrupted innings equals 100%.

How is the revised target calculated?

Team 2's par score is Team 1's score multiplied by (Team 2's resource % / Team 1's resource %). The target to win is that par score, rounded down, plus one run.

What is the "par score" during a live match?

It's the score Team 2 would need at that exact point (given the overs and wickets used so far) to be level with Team 1 on a resource basis. If Team 2 is above it they're ahead of the required rate, below it they're behind.

How do I enter overs with balls, like 33.4 overs?

Use cricket notation directly: 33.4 means 33 overs and 4 balls, not a decimal fraction. The calculator parses the digit after the point as balls (0-5) and converts it correctly.

Is my data saved?

No. Nothing is saved or sent anywhere — everything runs in your browser and clears when you refresh or close the page.