FA-84129 / Sports scoring and tiebreakers / Member archive

ERA truncated instead of rounded half up · case 04

An ERA of 3.375 is shown as 3.37.

Member previewVariant 4 · 3 implementations · 10 checks per implementation

Case contract

Pitching line aggregation. outings rows are [innings_pitched, earned_runs] where innings pitched use baseball notation "6.2" = 6 innings and 2 outs (the digit after the point is 0-2; otherwise return "invalid ip <text>"). Sum outs exactly. ERA = innings_per_game * earned runs / innings, rounded half up to two decimals. Return [total innings "I.O", ERA string]; with zero outs ERA is "INF" if any earned runs else "0.00".

Why this case matters

Box scores and stat pages aggregate outs across appearances; thirds of an inning are notorious.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
boundary thirds carry	`["7.0", "1.28"]`	`["7.0", "1.29"]`	Failed

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