FA-84524 / Betting odds conversion / Member archive

Handicap applied to the wrong side · case 04

A home -1.5 bet wins when the home side loses.

Member previewVariant 4 · 3 implementations · 10 checks per implementation

Case contract

Asian handicap bet on the home side. line is a multiple of 0.25 (else "invalid line"). Whole and half lines are a single bet; quarter lines split the stake equally between line - 0.25 and line + 0.25. Each part: margin = home_goals - away_goals + part_line; positive wins stake_part * price, zero refunds stake_part, negative loses. Return [total return in cents rounded down, label] where the label is win, half-win, push, half-lose or lose from the summed part outcomes.

Why this case matters

Asian handicap settlement with split quarter lines is a common source of payout disputes.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
boundary whole line push	`[1900, "win"]`	`[1000, "push"]`	Failed

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