DLS Calculator

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DLS Calculator

Duckworth-Lewis-Stern method target calculator for rain-affected cricket matches. Covers Team 2 target revision (most common scenario) and Team 1 interruption.

Standard Edition Formula T20 & ODI Real-time Calculation
DLS Target Calculator

Select the type of interruption that occurred in the match.

1
Match Setup
Total runs scored by Team 1
Only used if Team 1 innings was interrupted
2
Team 2 Revised Innings
Overs available to Team 2 after interruption
Quick Scenarios Click to auto-fill
How DLS Works Explained Simply
What is the DLS Method?▼

The Duckworth-Lewis-Stern (DLS) method is the official ICC system for calculating revised targets in rain-interrupted limited-overs cricket matches. It replaced earlier methods because it accounts for both overs remaining and wickets in hand — not just overs.

Every team starts with 100% of resources (all overs + all wickets). Resources are consumed as overs are bowled and wickets fall. When rain cuts overs, the team losing overs also loses resources — and the target is adjusted accordingly.

The Resource Formula▼

Resource remaining (%) for a team with u overs left and w wickets lost:

Z(u, w) = Z₀(w) × [1 − e−bu] / [1 − e−50b]
  • Z₀(w) = maximum resource available with w wickets lost (from wicket factor table)
  • b = decay constant = 0.0494 (Standard Edition)
  • u = overs remaining
  • The formula describes how resource reduces as overs tick down, at different rates depending on wickets lost
Target Calculation▼

Once resources are calculated:

  • If Team 2 has fewer resources than Team 1:
    Target = Team 1 score × (Team 2 resource / Team 1 resource)
  • If Team 2 has more resources (rare):
    Target = Team 1 score + G50 × (Team 2 resource − Team 1 resource)
    where G50 = average score in first 50 overs = 245 (Standard Edition)

Team 1's resource is 100% unless their innings was also interrupted.

Resource Percentage Table (Standard Edition)▼

Sample resource percentages for key over/wicket combinations:
Why DLS Can Seem Unfair▼

Critics argue DLS still has limitations:

  • High-scoring pitches: G50 of 245 (ODI Standard Edition) may be too low on modern flat tracks, potentially inflating targets.
  • T20 specifics: The Standard Edition was designed for 50-over cricket. The Professional Edition (used in international cricket) has different parameters for T20s, which this calculator approximates.
  • Very short innings: When matches are reduced to fewer than 5 overs, par scores can feel arbitrary.
  • Powerplay dynamics: The formula doesn't account for the specific value of powerplay overs.

Note: This calculator uses the public Standard Edition formula. Official ICC matches use the Professional Edition with more granular tables — results may differ by 1–3 runs in some cases.