Sports Odds

Q: Are prediction markets cheaper than a sportsbook?

Often, yes. A sportsbook builds a margin into the line, typically four to five percent on a two-way market. Prediction markets charge an explicit fee instead — 0.75% to 1.80% on Polymarket, around two cents a contract on Kalshi — so the all-in cost is usually lower, though liquidity on individual games is thinner.

Q: Can I trade individual games, not just championships?

Both venues list individual games, but this page tracks season-long championship and award markets, where contracts stay live for months and prices are meaningful to compare over time.

Championship, cup and award odds compared side by side on Polymarket and Kalshi.

NFL Champion

32 outcomes

Poly

Kalshi

Los Angeles Rams16.5¢16.5¢

Buffalo Bills8.5¢7.5¢

Seattle Seahawks7.5¢7.5¢

Baltimore Ravens6.8¢6.5¢

Ballon d'Or Winner

23 outcomes

Poly

Kalshi

Harry Kane66.5¢66.5¢

Lamine Yamal▼0.814.0¢15.0¢

Kylian Mbappé▲0.27.4¢9.0¢

Rodri5.5¢4.5¢

F1 Constructors' Champion

11 outcomes

Poly

Kalshi

Mercedes90.5¢88.5¢

Ferrari▲0.39.2¢10.5¢

McLaren0.5¢2.5¢

Red Bull Racing0.2¢1.0¢

UEFA Champions League Winner

36 outcomes·4.0 pt gap

Poly

Kalshi

Barcelona16.5¢20.5¢

Arsenal15.5¢14.5¢

Bayern Munich14.5¢14.5¢

Paris Saint-Germain13.5¢14.5¢

NBA Champion

30 outcomes·3.0 pt gap

Poly

Kalshi

Oklahoma City Thunder21.5¢21.5¢

San Antonio Spurs20.5¢22.5¢

New York Knicks11.5¢8.5¢

Philadelphia 76ers▼1.211.3¢10.5¢

MLS Cup Winner

30 outcomes

Poly

Kalshi

Inter Miami CF▲0.522.0¢22.0¢

Vancouver Whitecaps FC▼0.418.6¢20.5¢

Nashville SC15.6¢15.0¢

Los Angeles FC8.0¢8.0¢

MLB National League MVP

15 outcomes

Poly

Kalshi

Pete Crow-Armstrong▼0.192.8¢93.5¢

Shohei Ohtani▼1.56.0¢3.5¢

Ronald Acuña Jr.0.1¢1.0¢

Jordan Walker0.1¢1.0¢

MLB American League MVP

16 outcomes·4.3 pt gap

Poly

Kalshi

Yordan Alvarez▲0.193.5¢90.0¢

Junior Caminero2.2¢6.5¢

Bobby Witt Jr.▼0.51.8¢2.0¢

Ben Rice1.1¢1.0¢

NFL MVP

26 outcomes·5.0 pt gap

Poly

Kalshi

Lamar Jackson▲2.014.5¢9.5¢

Dak Prescott11.3¢6.5¢

Justin Herbert▼0.510.5¢8.5¢

Joe Burrow9.9¢9.5¢

College Football National Champion

15 outcomes·3.5 pt gap

Poly

Kalshi

Oregon Ducks14.9¢11.5¢

Ohio State Buckeyes13.5¢12.5¢

Notre Dame Fighting Irish13.5¢12.5¢

Indiana Hoosiers12.3¢9.5¢

Sports odds on Polymarket and Kalshi

Sports drive more than 80% of all prediction market volume, and both venues carry the same championship and award markets — Super Bowl, NBA title, Champions League, college football, MVP races. Because these run for a whole season, the same contract stays live for months and the two books have plenty of time to drift apart.

Prediction market contracts price differently from a sportsbook line: you are buying a contract that settles at $1, not taking a fixed-odds price against the house. Prediction markets vs sports betting covers what changes, and the best platforms for sports ranks the venues on depth.

Frequently asked questions

Are prediction markets cheaper than a sportsbook?

Often. A sportsbook bakes a margin into the line, usually four to five percent on a two-way market. Prediction markets charge an explicit fee instead, so the all-in cost is typically lower — though single-game liquidity is thinner. More in prediction markets vs sports betting.

Can I trade individual games, not just championships?

Both venues list individual games. This page tracks season-long championship and award markets, where a contract stays live for months and the comparison holds up over time.

Compare every tracked market on the Polymarket vs Kalshi odds page, or read our reviews of Polymarket and Kalshi before funding an account.