TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
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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: Jun 17, 4:39 PM EST
Kalshi
This market tracks whether the Detroit Tigers and Houston Astros baseball game scheduled for June 17, 2026 extends beyond nine innings. Extra innings occur when the score remains tied after regulation play.
If Detroit and Houston go to extra innings in the Detroit vs Houston professional baseball game originally scheduled for Jun 17, 2026 at 2:10 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 protect their margin, while prediction markets aggregate the beliefs of traders risking real capital on outcomes. This market may price the extra innings scenario differently than traditional sportsbooks, sometimes offering sharper or more reactive pricing. Comparing the two can reveal where the broader betting public and prediction market traders disagree, potentially highlighting value opportunities or consensus blind spots.
On Kalshi, this market is priced through an order-book mechanism where traders submit bids and asks for shares representing yes or no outcomes. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price you see reflects the last executed trade, and you can view the full depth of pending orders to understand where buyers and sellers currently stand. As new information emerges or sentiment shifts, traders adjust their orders, causing the price to move. This continuous price discovery process means the market adapts in real time to new developments, injuries, weather, or other factors that might influence the likelihood of extra innings.
This market resolves around Jun 17, 2026, once the Detroit-Houston game concludes and the result is verifiable from credible public reporting. The outcome is determined by whether the contest extends into extra innings or concludes within regulation play. Resolution occurs after the final result is confirmed through official league sources and sports data providers. Traders should monitor the game closely as the resolution date approaches to ensure they understand how the final score and game length will be reported.
Several factors can shift odds in this market before game time and during play. Roster changes, injuries to key players, or late-breaking lineup announcements can alter expectations about offensive and defensive capability. Weather conditions, particularly wind speed and temperature, influence whether the ball carries farther and scoring becomes easier. Starting pitcher performance, bullpen availability, and recent team form all shape the probability of a close game extending to extra innings. Real-time game developments—early scoring, momentum swings, and pitching changes—will drive price movement as traders update their assessments of how likely overtime becomes.