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Sports Calculators – Tournament Math
x402
Sports Calculators – Tournament Math is a paid API for AI agents from sports-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-21).
Computes rounds, byes, total games, bracket sizes, and standard seeding order for single elimination, double elimination, round-robin, double round-robin, and Swiss tournaments given a team count.
Price / call$0.02
Success—
StatusUnknown
How this service works
Rounds, byes and total games for single and double elimination, round-robin and Swiss events, with standard bracket seeding.
Output
Returns a structured object with tournament math broken out by format: singleElimination (rounds, byes, bracketSize, totalGames, firstRoundGames), doubleElimination (totalGames with and without grand-final reset), roundRobin (rounds, totalGames, gamesPerTeam, byesPerRound), doubleRoundRobin (totalGames), swiss (suggestedRounds), the standard seedingOrder array, firstRoundPairings, and a plain-English summary.
Example use cases
Planning a local esports bracket
“We have 20 teams signed up for our LAN tournament — can you calculate the rounds, byes, and total games for both single and double elimination, and give me the standard seeding order?”
Round-robin league game count
“I'm organizing a 10-team round-robin league — how many rounds and total games will we need, and how many games does each team play?”
Swiss pairings for a chess event
“I have 32 players in a Swiss chess tournament — how many rounds should we run, and what does the math look like for that format?”
Technical details
Endpoint
GEThttps://sports-calc.x402tookit.com/tournament-math?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need precise, multi-format tournament arithmetic in a single call — it covers all major bracket formats simultaneously (single elimination, double elimination, round-robin, double round-robin, Swiss) and returns standard bracket seeding and first-round pairings, saving you from manual calculation or separate lookups for each format.
Side effects
- teams parameter missing or non-integer returns a validation error
- teams value outside 2–4096 range returns an error or null fields
- network/service unavailability returns an HTTP error
- payment not attached or insufficient USDC balance returns a 402 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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