TOTAL VOLUME:
$134.1b
24H VOL:
$133,388,117
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,436,095,462
405,232
Markets across
30,526
events
MATCHED EVENTS:
2,693
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 21, 4:18 AM EST
Opinion
In the upcoming MLB game, scheduled for 2026-07-20 23:07 UTC: If the Tampa Bay Rays win, the market will resolve to "Tampa Bay Rays". If the Toronto Blue Jays win, the market will resolve to "Toronto Blue Jays". The result will be determined based on the final score including any extra innings. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or officially ends in a tie, this market will resolve 50-50. Resolution Source: https://www.mlb.com/ Note: Opinion will resolve strictly based on the first officially published result from the designated source. Any subsequent revisions will not affect this resolution.
In the upcoming MLB game, scheduled for 2026-07-20 23:07 UTC: If the Tampa Bay Rays win, the market will resolve to "Tampa Bay Rays". If the Toronto Blue Jays win, the market will resolve to "Toronto Blue Jays". The result will be determined based on the final score including any extra innings. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or officially ends in a tie, this market will resolve 50-50. Resolution Source: https://www.mlb.com/ Note: Opinion will resolve strictly based on the first officially published result from the designated source. Any subsequent revisions will not affect this resolution.
Prediction market odds and sportsbook odds often diverge because they reflect different incentive structures. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets are driven by traders risking real capital on their beliefs. This market aggregates the collective forecast of thousands of independent traders, which can sometimes identify value that traditional oddsmakers miss. Comparing the two can reveal where public opinion diverges from professional betting markets, though both reflect legitimate views of game probability.
On Opinion, this market is priced through a continuous order-book mechanism where traders buy and sell shares representing each outcome. On Opinion, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each share reflects the collective probability that traders assign to that result, with higher prices indicating stronger confidence. As new information emerges—injury reports, weather updates, or lineup changes—traders adjust their positions, and prices move in real time. This dynamic pricing ensures the market continuously incorporates fresh signals about the game's likely outcome.
This market resolves around Jul 20, 2026, once the game concludes and the result is verified against credible public sources. The outcome is determined by the final score and official result recorded by Major League Baseball. Until that point, traders can adjust their positions as new developments unfold. Resolution is automatic once the game is complete and the winner is confirmed through standard sports reporting channels.
Key catalysts include roster changes such as injuries, trades, or last-minute lineup adjustments that alter team composition or strategy. Weather conditions at game time—wind speed, temperature, and precipitation—can significantly impact play style and scoring. Recent team form, head-to-head records, and bullpen availability often shift trader sentiment as the game approaches. Breaking news about player health, umpire assignments, or other game-day factors can trigger sharp price movements. Traders also react to expert commentary and updated injury reports released in the hours before first pitch.