What required run rate means
Required run rate is the average number of runs per over a batting team needs from the current point to reach its winning score. It is a planning figure for a chase, not a prediction of what will happen.
Formula and target definition
Required run rate = runs still needed ÷ overs remaining. Runs still needed = winning score − current score. In a standard uninterrupted chase, the winning score is one more than the opponent's first-innings total. If the opponent scores 160, the chasing team usually needs 161 to win.
Worked example
A team needs to reach 161 and currently has 90 runs with 8 overs remaining. It needs 161 − 90 = 71 runs. Divide 71 by 8 and the required rate is 8.875, or 8.88 runs per over rounded to two decimal places.
Partial overs
If 8 overs and 4 balls remain, the scorecard shows 8.4. For calculation, that is 52 legal balls, equal to 52 ÷ 6 = 8.6667 overs. Divide the remaining runs by that decimal-over equivalent. Never divide by 8.4 as if it were a decimal number.
Using the calculator
Enter the score the batting side must reach to win, its current score and the overs remaining. Make sure the target is not simply the opponent's total unless that is already the winning score under the applicable match rules. Enter overs in overs-and-balls notation with a final digit from 0 to 5.
How to read the number
A rising required rate means the batting team needs to score faster from this point. Whether the chase is manageable depends on wickets remaining, batters at the crease, balls left, the bowling attack and match conditions. Compare required run rate with current run rate for a quick view of the gap, but avoid treating either as a guarantee.
Interrupted matches
If officials announce a revised target after an interruption, use that official winning score. This basic calculator does not calculate DLS or other resource-based revised targets.
Next step
Use the Required Run Rate Calculator during a practice chase. Compare the result with the current Run Rate Calculator reading.
Editorial note: This guide explains general scoring and planning concepts. Check official scorecards and the playing conditions for your competition when a decision depends on an official ruling.
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