TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Aug 12, 6:19 PM EST
Kalshi
The event refers to a professional baseball game between two teams scheduled for an afternoon in August. It will be determined whether the game will extend beyond the standard nine innings due to a tie score at the end of regular play. This outcome would result in the game proceeding to additional innings to determine a winner.
If Houston and San Francisco go to extra innings in the Houston vs San Francisco professional baseball game originally scheduled for Aug 12, 2026 at 3:45 PM EDT, then the market resolves to Yes.
Compared to traditional sportsbook odds, prediction market odds for this market often reflect sharper insights because traders can react instantly to new information. While sportsbooks set fixed lines, this market lets participants bet directly on the probability of extra innings, sometimes showing tighter spreads or different implied chances based on crowd-sourced sentiment.
On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. On Kalshi, traders set the price through a continuous auction where bids and asks determine the current odds. The top outcome’s implied probability reflects aggregated trader expectations, with liquidity indicated by volume of $1,794. Price movements respond to perceived changes in factors that could influence game length, such as pitcher performance or weather conditions.
This market resolves around Aug 12, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The result depends on whether the game lasts longer than nine innings, as officially recorded by the league and reported across major sports news outlets.
Injuries, weather delays, or strategic decisions by managers can shift expectations for game length and move this market. Updates on starting pitchers, bullpen depth, or game conditions may cause rapid price adjustments. As Aug 12, 2026 approaches, any news suggesting a higher probability of extra frames — or indications of a quick conclusion — will influence trader positioning and market odds.