§ Category
Sports
Championships, MVPs, season-long outcomes, tournament progression.
§ Primer
Championships, MVPs, season-long outcomes, tournament progression.
Sports prediction markets fall into two buckets: single-event spot questions (who wins tonight's game, which team advances) and season-long markets (division winners, Super Bowl champions, league MVPs). Betfair leads on global sports liquidity; Kalshi and Polymarket list US-regulated equivalents; Manifold carries the long tail plus esports.
Canonical outcomes for season-long markets are typically the full list of eligible teams, which produces high-cardinality categorical events. The matcher uses per-league discriminators so an NBA championship market doesn't match an NFL one and vice versa.
Pitfalls: championship markets with different resolution criteria (trophy lift vs league acknowledgement), MVP markets that resolve on voting vs on statistical thresholds, and cross-sport aliases ("world series" meaning the MLB one vs a regional one). Storm groups sports markets under a single category here; future work may split by league.
§ Matcher threshold
§ Active events
- 2025–26 English Premier League Top Goal Scorer Open
- 2025–26 UEFA Champions League Winner Open
- 2026 Men's French Open Winner Open
- 2025–2026 NBA MVP Winner Open
- 2026 NBA Eastern Conference Finals Winner Open
- 2026 NBA Western Conference Finals Winner Open
- 2026 NBA Finals champion Open
- 2026 Stanley Cup champion Open
- FIFA World Cup 2026 winner Open
- 2026 FIFA World Cup Winner Open
- 2026 Ballon d'Or Winner Open
- 2026 MLB World Series Winner Open
- 2026 F1 Constructors' Champion Open
- 2026 F1 Drivers' Champion Open
- 2026 MLS Cup Winner Open
- 2027 NFL AFC Championship Winner Open
- 2027 NFL NFC Championship Winner Open
- 2027 Championship League NFL Open