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📐 Cricket Required Run Rate 計算機

專業免費的 Cricket Required Run Rate 計算機。純前端本機毫秒級計算、零資料上傳、極致隱私保護。提供詳細公式推導、實例示範與常見問答。

即時推算結果 (Computed Output)
6 runs per over needed
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What is Required Run Rate (RRR)?

In limited-overs cricket, the Required Run Rate (RRR) is the average number of runs per over that the batting (chasing) team must score in the remaining overs to reach the target and win the match. It is one of the most-watched live statistics in ODI and T20 cricket because it instantly tells you how hard the chase is.

How to use this calculator

Enter three values: the target score (the total the chasing team needs to win, which is the first innings total plus one), the current score of the chasing team, and the overs remaining. Overs are entered in standard cricket notation — for example 4.3 means 4 overs and 3 balls remaining. The calculator returns the RRR in runs per over, along with the runs still required and the balls left.

The formula explained

The calculation is simple: take the runs still required (target minus current score), multiply by 6 (the number of balls in an over), then divide by the number of balls remaining.

RRR = ((Runs Required × 6) ÷ (Balls Remaining))

Because overs are written as overs.balls, the calculator first converts them to total balls: 4.3 overs becomes 4 × 6 + 3 = 27 balls.

Worked example

Suppose the target is 300, the chasing team is on 150, and there are 25 overs (150 balls) remaining. Runs required = 300 - 150 = 150.

RRR = ((150 × 6) ÷ (150)) = 6.00 runs per over
The team needs to maintain six an over to win.

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輸入各項數值時請務必確認量綱(例如小時、天數、金額、百分比),避免單位不匹配引發推算偏差。

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所有計算邏輯 100% 在您的終端瀏覽器內完成,資料絕不上傳伺服器,嚴格守護商業與個人隱私。

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建議針對極端值與多組預期情景分別試算,觀察輸出數據的波動區間,輔助做出更穩健的決策。

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本工具運算結果供日常排程、學業研習與事前參考之用,如涉及重大法規或投資決策請諮詢持證專家。

常見問題 (FAQ)

What is the difference between RRR and current run rate?
The current run rate (CRR) is what you have scored so far per over; RRR is what you still need per over to win.
Why is the target one more than the first-innings total?
To win, the chasing team must surpass the first-innings score, so the target equals that score plus one.
How do I enter 3 balls left?
Enter0.3overs remaining — 0 overs and 3 balls.