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: Jun 16, 11:09 PM EST
Kalshi
Detroit and Houston play a professional baseball game on June 16, 2026. The market tracks whether the game extends beyond nine innings, requiring additional innings to determine a winner.
If Detroit and Houston go to extra innings in the Detroit vs Houston professional baseball game originally scheduled for Jun 16, 2026 at 8:10 PM EDT, then the market resolves to Yes.
Prediction market odds and sportsbook odds often diverge because they reflect different participant pools and incentive structures. Sportsbooks set lines to balance action and manage risk, while prediction markets aggregate trader beliefs through continuous price discovery. For this market, comparing Kalshi odds to major sportsbook lines on extra innings can reveal where professional oddsmakers and decentralized traders disagree. These gaps sometimes signal mispricing opportunities, though both venues generally converge as game time approaches and new information emerges.
On Kalshi, this market is priced through an order-book mechanism where traders buy and sell 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 of each share reflects the collective probability estimate of all active traders at any given moment. As new information surfaces—injuries, weather, lineup changes—traders adjust their positions, moving the price up or down. This continuous repricing ensures the market stays responsive to real-world developments leading up to the game.
This market resolves around Jun 17, 2026, once the Detroit-Houston game concludes and the outcome is verifiable from credible public sources. The resolution hinges on whether the game goes to extra innings—that is, whether play extends beyond the standard nine innings. Once the final result is confirmed through official box scores and sports reporting, the market settles and traders receive payouts based on their positions.
Key developments that could shift this market include roster changes, injury announcements to star pitchers or hitters, weather forecasts affecting gameplay, and recent offensive or defensive trends for both teams. Bullpen strength and depth are particularly important for extra-innings probability, since tired relievers increase the likelihood of extended play. As game time approaches, line-up confirmations and last-minute tactical decisions can also trigger price movement. Real-time game events—score progression, pitching changes, and momentum swings—will drive the most dramatic shifts in the final hours before resolution.