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: Sep 15, 10:44 PM EST
Kalshi
The game between San Francisco and St. Louis is set to take place on September 15, 2026. If the teams finish the nine regulation innings tied, they will continue playing additional frames until a winner is determined. The outcome depends on whether the competitive balance forces the game into these extra periods.
If at least 1 extra inning is played in the San Francisco vs St. Louis professional baseball game originally scheduled for Sep 15, 2026 at 7:45 PM EDT, then the market resolves to Yes.
Prediction market odds often reflect the wisdom of the crowd, potentially differing from sportsbook odds which can be influenced by factors like house bias or initial public perception. Sportsbooks set lines based on their models and risk management, while this market allows anyone to trade on their belief about the likelihood of extra innings. It’s common to see discrepancies, especially before significant information emerges. Comparing the two can offer a broader perspective on the anticipated outcome of the San Francisco vs St. Louis game, and potentially identify value in either market.
On Kalshi, this market is priced through a continuous order book where traders buy and sell contracts representing the probability of extra innings in the San Francisco vs St. Louis game. The price of a contract ranges from 0 to 100, representing the implied probability of the event occurring. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more people buy contracts, the price increases, and vice versa. This dynamic pricing mechanism reflects the collective intelligence of the market participants and their evolving expectations. The current price indicates what the market, as a whole, believes is the chance of extra innings.
This market resolves around Sep 16, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will depend on whether extra innings are officially played in the San Francisco vs St. Louis game. Official game results, as reported by major sports news outlets and the league itself, will determine the final outcome. The platform will verify the result against these sources to ensure an accurate and transparent resolution process. Traders will then be paid out or have their contracts settled based on the final result.
Several factors could influence the price of this market before the game is played. Any news regarding potential pitching changes, weather forecasts impacting the game, or injuries to key players could all shift expectations. Unexpected announcements about stadium conditions or rule changes could also play a role. Furthermore, significant betting activity or large trades on Kalshi itself can cause price movements, reflecting changes in market sentiment. Monitoring these signals will be key to understanding how the market evolves leading up to the game’s conclusion.