TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 30, 11:49 PM EST
Kalshi
A professional baseball game between two teams is scheduled for June 30, 2026 in the evening. The event in question is whether this matchup will extend beyond regulation play and require extra innings to determine a winner.
If Miami and Colorado go to extra innings in the Miami vs Colorado professional baseball game originally scheduled for Jun 30, 2026 at 8:40 PM EDT, then the market resolves to Yes.
Prediction market odds and sportsbook odds often diverge because they serve different purposes and audiences. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets reflect real-time trader conviction without a built-in house edge. This market aggregates the collective judgment of traders who profit from accuracy, which can sometimes yield sharper probability estimates than traditional betting lines. However, sportsbook odds benefit from sophisticated risk management and deep liquidity, so neither venue consistently outperforms the other across all events.
On Kalshi, this market is priced through a continuous order-book mechanism where traders submit bids and asks for contracts tied to the extra innings outcome. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The platform converts the spread between buy and sell orders into an implied probability, which updates in real time as new trades execute. Prices reflect the marginal trader's willingness to accept risk, so sharp moves often signal new information or shifting expectations about game conditions or team performance.
This market resolves around Jul 1, 2026, once the Miami versus Colorado game concludes and the outcome is verifiable from credible public reporting. The resolution hinges on whether the contest extends into extra innings or concludes during regulation play. Official league records and widely reported game summaries serve as the basis for final determination, ensuring clarity and fairness for all participants.
Several factors may shift odds in this market before the game begins and during play. Roster announcements, injuries to key pitchers, or bullpen depth reports can alter expectations about game length and scoring pace. Weather conditions—wind speed, temperature, and humidity—affect ball carry and run scoring, influencing the likelihood of extra innings. Starting pitcher performance, team offensive trends, and recent head-to-head records also shape trader conviction. Real-time game developments, such as early scoring runs or pitching changes, will drive price movement as the event unfolds.