TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 4, 10:24 PM EST
Kalshi
This market tracks whether the Tampa Bay Rays and Houston Astros play beyond nine innings in their scheduled July 4, 2026 matchup. Extra innings occur when the score remains tied after regulation play.
If Tampa Bay and Houston go to extra innings in the Tampa Bay vs Houston professional baseball game originally scheduled for Jul 4, 2026 at 7:10 PM EDT, then the market resolves to Yes.
Prediction market odds and sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets like this one are driven by traders risking real capital on their beliefs. Prediction markets can sometimes price events more efficiently over time because participants have direct financial exposure. Comparing this market's odds to major sportsbook lines on the same game can reveal where the two communities disagree on the likelihood of extra innings.
On Kalshi, this market is priced through continuous order-book trading, where buyers and sellers submit bids and offers that determine the real-time probability. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price you see reflects the most recent trades and pending orders, updating as new information emerges or trader sentiment shifts. Each contract represents a yes or no outcome on extra innings, and the midpoint between bid and ask spreads gives you the market's current consensus estimate of the event's likelihood.
This market resolves around Jul 5, 2026, once the game concludes and the final result is verifiable from credible public sources. The outcome is determined by whether the contest extends into extra innings or concludes within regulation play. Resolution happens after the event is officially confirmed, ensuring accuracy and fairness for all traders. Check the market details closer to the date for any final clarifications on timing or edge cases.
Several factors could shift odds in this market before it resolves. Injury reports or roster changes for either team may alter expectations around game competitiveness and the likelihood of a close contest. Weather conditions, ballpark factors, and recent team performance trends can influence how traders assess the probability of extra innings. Breaking news about starting pitchers, bullpen availability, or team momentum often triggers repricing. As game day approaches and closer to first pitch, live betting action and updated injury status typically drive the most significant moves.