League hub
MLB odds on prediction markets
7 MLB games this week, and the 12 busiest season-long markets are open on Polymarket and Kalshi. Sports contracts are the contested part of this market: 17 states have acted against them, so where you can trade depends on where you are. This hub stays put across the season as fixtures come and go.
This week’s fixtures
Favourite: the side both venues price highest, at the consensus of the two. 24h volume: across both venues where both price the game, else on the listed venue.
Season-long markets
Season-long, futures and props markets on MLB, busiest first: the 12 busiest of 43.
MLB World Series Champion 2026
Polymarket · Kalshi · $1.5M in 24h, both venues · settles Oct 31, 2026
Favourite: Los Angeles Dodgers 29%
MLB: 2026 National League Champion
Polymarket · Kalshi · $211K in 24h, both venues · settles Nov 30, 2026
Favourite: Milwaukee Brewers 40%
MLB: 2026 American League Champion
Polymarket · Kalshi · $268K in 24h, both venues · settles Nov 30, 2026
Favourite: Tampa Bay Rays 37%
MLB Postseason: Number of Walk-Offs
Polymarket · $2K in 24h on Polymarket · settles Nov 15, 2026
Busiest: 4+ 41%
MLB Playoffs: Brewers vs. Padres Series Spread
Polymarket · $1K in 24h on Polymarket · settles Oct 10, 2026
Busiest: Brewers (-1.5) 71%
MLB Playoffs: Team to advance to NLCS
Polymarket · $944 in 24h on Polymarket · settles Oct 15, 2026
Busiest: Atlanta Braves 40%
MLB: AL Platinum Glove Winner
Polymarket · $530 in 24h on Polymarket · settles Dec 31, 2026
Favourite: Bobby Witt Jr. 36%
MLB: AL Rookie of the Year
Polymarket · $522 in 24h on Polymarket · settles Dec 31, 2026
Favourite: Kevin McGonigle 93%
MLB 2026: World Series Division Winner
Polymarket · $478 in 24h on Polymarket · settles Nov 15, 2026
Favourite: NL West 31%
MLB Playoffs: Team to advance to ALCS
Polymarket · $342 in 24h on Polymarket · settles Oct 15, 2026
Busiest: New York Yankees 35%
MLB: AL Manager of the Year
Polymarket · $326 in 24h on Polymarket · settles Dec 31, 2026
Favourite: Will Venable 80%
MLB: Next Phillies Manager
Polymarket · $280 in 24h on Polymarket · settles Jan 31, 2027
Favourite: Alex Cora 61%
Can you trade MLB contracts from your state?
Sports contracts are the contested part of this market. States with an action against sports contracts on record (17): Arizona, California, Connecticut, Iowa, Illinois, Massachusetts, Maryland, Michigan, Minnesota, Nevada, New York, Ohio, Rhode Island, Tennessee, Utah, Washington, Wisconsin. Check your state
Common questions
Can you trade MLB games on prediction markets?
Yes, on venues that list sports contracts: each game is a Yes/No contract on the winner. Whether you can trade them depends on your state: 17 states have acted against sports contracts specifically.
Where do MLB odds on this page come from?
From Polymarket’s and Kalshi’s order books. A game both list shows the favourite at the consensus of the two prices and links to a page with both side by side; a game one venue lists links to that venue’s page.