MLB Prediction Markets

Track and compare odds on 1,263 active MLB prediction markets — MLB games, division races, playoff odds and World Series futures — aggregated across Polymarket, Kalshi, ForecastEx and 6 more platforms. When the same question trades on multiple platforms, MassPredict shows each platform's price side by side so you can spot divergence at a glance.

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1,263 active markets · ranked by volume

College Baseball D1 Champion — Texas

KALSHI · YES 19% · NO 81% · $366.6K vol

College Baseball D1 Champion — North Carolina

KALSHI · YES 22% · NO 78% · $321.9K vol

College Baseball D1 Champion — Mississippi St.

KALSHI · YES 12% · NO 88% · $272.6K vol

College Baseball D1 Champion — Georgia

KALSHI · YES 16% · NO 84% · $269.6K vol

College Baseball D1 Champion — Auburn

KALSHI · YES 11% · NO 89% · $249.0K vol

College Baseball D1 Champion — Ole Miss

KALSHI · YES 5% · NO 95% · $217.3K vol

College Baseball D1 Champion — USC

KALSHI · YES 5% · NO 95% · $204.0K vol

College Baseball D1 Champion — Oregon

KALSHI · YES 4% · NO 96% · $181.7K vol

College Baseball D1 Champion — West Virginia

KALSHI · YES 9% · NO 91% · $181.4K vol

College Baseball D1 Champion — Oklahoma

KALSHI · YES 4% · NO 96% · $178.3K vol

College Baseball D1 Champion — Alabama

KALSHI · YES 5% · NO 95% · $172.6K vol

Los Angeles D pro baseball wins this season? — 100+ wins

KALSHI · YES 73% · NO 27% · $56.3K vol

Pro Baseball Playoff Qualifiers — New York M

KALSHI · YES 22% · NO 78% · $53.1K vol

Pro Baseball Best Record — Los Angeles D

KALSHI · YES 43% · NO 57% · $49.4K vol

Pro Baseball Playoff Qualifiers — Pittsburgh

KALSHI · YES 49% · NO 51% · $47.9K vol

Pro Baseball Playoff Qualifiers — San Diego

KALSHI · YES 50% · NO 50% · $45.8K vol

Colorado pro baseball wins this season? — 60+ wins

KALSHI · YES 50% · NO 50% · $42.7K vol

Pro Baseball Playoff Qualifiers — Seattle

KALSHI · YES 90% · NO 10% · $41.7K vol

Pro Baseball Home Runs Leader — Munetaka Murakami

KALSHI · YES 3% · NO 97% · $38.2K vol

Pro Baseball Worst Record — Colorado

KALSHI · YES 50% · NO 50% · $36.0K vol

Pro Baseball Playoff Qualifiers — Los Angeles A

KALSHI · YES 6% · NO 94% · $35.4K vol

Los Angeles D pro baseball wins this season? — 105+ wins

KALSHI · YES 38% · NO 62% · $35.4K vol

Atlanta pro baseball wins this season? — 100+ wins

KALSHI · YES 35% · NO 65% · $35.1K vol

Pro Baseball Playoff Qualifiers — Milwaukee

KALSHI · YES 85% · NO 15% · $35.1K vol

Pro Baseball Playoff Qualifiers — A's

KALSHI · YES 28% · NO 72% · $34.4K vol

Pro Baseball Playoff Qualifiers — Chicago WS

KALSHI · YES 38% · NO 62% · $33.3K vol

Pro Baseball Playoff Qualifiers — Houston

KALSHI · YES 29% · NO 71% · $33.2K vol

Pro Baseball Home Runs Leader — Aaron Judge

KALSHI · YES 25% · NO 75% · $31.9K vol

Pro Baseball Playoff Qualifiers — Tampa Bay

KALSHI · YES 80% · NO 20% · $31.5K vol

Pro Baseball Playoff Qualifiers — St. Louis

KALSHI · YES 18% · NO 82% · $30.0K vol

Pro Baseball Playoff Qualifiers — Boston

KALSHI · YES 24% · NO 76% · $29.8K vol

Pro Baseball Playoff Qualifiers — Cincinnati

KALSHI · YES 16% · NO 84% · $29.3K vol

Colorado pro baseball wins this season? — 55+ wins

KALSHI · YES 67% · NO 33% · $29.2K vol

Pro Baseball Best Record — New York Y

KALSHI · YES 16% · NO 84% · $28.2K vol

Pro Baseball Best Record — Atlanta

KALSHI · YES 30% · NO 70% · $27.9K vol

Pro Baseball Playoff Qualifiers — San Francisco

KALSHI · YES 14% · NO 86% · $27.5K vol

Pro Baseball Playoff Qualifiers — Kansas City

KALSHI · YES 7% · NO 93% · $27.3K vol

Pro Baseball Playoff Qualifiers — Miami

KALSHI · YES 8% · NO 92% · $26.7K vol

Pro Baseball Playoff Qualifiers — Detroit

KALSHI · YES 17% · NO 83% · $26.6K vol

Pro Baseball Worst Record — Los Angeles A

KALSHI · YES 19% · NO 81% · $25.7K vol

Will any pitcher record a no hitter?

KALSHI · YES 50% · NO 50% · $25.2K vol

Pro Baseball Worst Record — New York M

KALSHI · YES 4% · NO 96% · $24.0K vol

Pro Baseball Playoff Qualifiers — Chicago C

KALSHI · YES 62% · NO 38% · $23.7K vol

Pro Baseball Playoff Qualifiers — Baltimore

KALSHI · YES 53% · NO 47% · $23.6K vol

Chicago WS pro baseball wins this season? — 70+ wins

KALSHI · YES 77% · NO 23% · $22.8K vol

Seattle pro baseball wins this season? — 90+ wins

KALSHI · YES 51% · NO 49% · $22.8K vol

Milwaukee pro baseball wins this season? — 90+ wins

KALSHI · YES 74% · NO 26% · $21.7K vol

Philadelphia pro baseball wins this season? — 90+ wins

KALSHI · YES 29% · NO 71% · $21.2K vol

Pro Baseball Playoff Qualifiers — Toronto

KALSHI · YES 59% · NO 41% · $20.6K vol

Pro Baseball Playoff Qualifiers — Los Angeles D

KALSHI · YES 95% · NO 5% · $20.4K vol

Pro Baseball Worst Record — San Francisco

KALSHI · YES 12% · NO 88% · $20.1K vol

New York M pro baseball wins this season? — 90+ wins

KALSHI · YES 10% · NO 90% · $19.4K vol

San Diego pro baseball wins this season? — 85+ wins

KALSHI · YES 59% · NO 41% · $19.2K vol

Minnesota pro baseball wins this season? — 75+ wins

KALSHI · YES 42% · NO 58% · $19.0K vol

Pro Baseball Home Runs Leader — Yordan Alvarez

KALSHI · YES 15% · NO 85% · $19.0K vol

Pro Baseball Playoff Qualifiers — Atlanta

KALSHI · YES 95% · NO 5% · $18.8K vol

Pro Baseball Best Record — Milwaukee

KALSHI · YES 13% · NO 87% · $18.8K vol

New York Y pro baseball wins this season? — 95+ wins

KALSHI · YES 62% · NO 38% · $18.6K vol

Will any pitcher record a perfect game?

KALSHI · YES 13% · NO 87% · $18.4K vol

Boston pro baseball wins this season? — 85+ wins

KALSHI · YES 20% · NO 80% · $18.2K vol