TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 19, 12:21 AM EST
Kalshi
A professional baseball game between two teams is scheduled for June 18, 2026 at 9:40 PM EDT. The event in question is whether this game will extend into extra innings, meaning the score remains tied after nine regulation innings and additional innings must be played to determine a winner.
If Los Angeles A and A's go to extra innings in the Los Angeles A vs A's professional baseball game originally scheduled for Jun 18, 2026 at 9:40 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 aggregate the beliefs of traders risking real capital on outcomes. This market aggregates trader conviction without the sportsbook's built-in margin, potentially offering sharper pricing on whether the game reaches extra innings. Comparing the two can reveal where informed traders see value relative to traditional betting lines.
On Kalshi, this market is priced through continuous order-book trading, where buyers and sellers submit bids and asks that determine the real-time odds. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders can enter or exit positions at any time before the market closes, and the price reflects the marginal agreement between the last matched buyer and seller. As new information surfaces—injuries, weather updates, or lineup changes—traders adjust their positions, moving the price to reflect evolving expectations about whether the game will go to extra innings.
This market resolves around Jun 19, 2026, once the game concludes and the final result is verifiable from credible public sources. The outcome is determined by whether the matchup extends beyond nine innings or concludes in regulation play. Resolution occurs after the event is officially confirmed, ensuring accuracy and preventing disputes over incomplete or preliminary information.
Key catalysts include roster announcements—particularly closer availability or bullpen depth—weather forecasts that might favor high-scoring conditions, and recent offensive trends for both teams. Injury reports, lineup changes, and umpire assignments can also shift trader expectations about game flow and the likelihood of a close contest. As game time approaches, any breaking news about player availability or field conditions will likely trigger repricing, so monitoring team updates and weather is essential for tracking this market's momentum.