# Sports Rules

Was that offside? The decision procedure, for soccer and hockey.

**Why delegate it:** The two sports use the same word for structurally opposite rules and are routinely conflated. Soccer excludes hands and arms and treats an offside position as no offence without involvement; hockey judges skates against the blue-line plane, where since 2021 a skate in the air is onside — except when tagging up.

Site: https://sports-rules-theta.vercel.app

## Tools

### `offside` — Work an offside call through IFAB Law 11 or NHL Rule 83

Returns a verdict plus every step taken. THREE verdicts, not two: offside, onside, and no-offside-offence — the last is real and common, because in soccer an offside POSITION is not an offence without involvement in active play. Soccer: hands and arms never count (boundary at the bottom of the armpit), there is no offence direct from a throw-in, goal kick or corner, and a DELIBERATE play by an opponent resets it while a deflection does not. Hockey: skates decide it, not the stick, and since 2021 a skate in the air above the blue line is onside — but NOT when tagging up on a delayed offside. Not an official ruling.

Direct endpoint: `https://sports-rules-theta.vercel.app/api/v1/offside`

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Via the aggregator: `https://gumballtools.com/api/mcp`
Direct: `https://sports-rules-theta.vercel.app/api/mcp`