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: Sep 12, 12:59 AM EST
Kalshi
In the Seattle vs A's game on September 11, 2026, observers will note whether the match requires additional playing time beyond the usual nine innings. The event concludes positively only if the game remains tied through the ninth inning, forcing competitors to continue.
If at least 1 extra inning is played in the Seattle vs A's professional baseball game originally scheduled for Sep 11, 2026 at 9:40 PM EDT, then the market resolves to Yes.
Generally, prediction market odds often reflect a wisdom-of-the-crowd effect, potentially incorporating information and analysis beyond what's immediately available to sportsbooks. While sportsbooks set initial lines based on statistical models and expert opinions, this market allows for continuous adjustment as new information emerges and more traders participate. Discrepancies can arise due to differing risk assessments, motivations of participants, or simply variations in information access. It’s common to see prediction markets move faster to incorporate breaking news or late-developing insights than traditional betting venues.
On Kalshi, this market is priced through a continuous order book where traders buy and sell contracts representing potential outcomes. The price of a contract reflects the probability of that outcome occurring, as perceived by the market participants. As more traders buy into a particular outcome, its price increases, and vice versa. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. This dynamic pricing mechanism allows the market to react quickly to new information and adjust probabilities accordingly, offering a real-time assessment of expectations for the game’s outcome.
This market resolves around Sep 12, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution will be based on whether the Seattle vs A's game goes into extra innings, as officially recorded by major sports data providers. The final result will be determined by the official game statistics and reported by trusted sources, ensuring a transparent and verifiable outcome for all participants in this market.
Several factors could significantly impact this market. Any news regarding starting pitchers, key player injuries, or weather conditions affecting the game could cause shifts in probabilities. Unexpected lineup changes or in-game performance during the initial innings could also influence trading activity. Furthermore, broader factors like overall team momentum or recent performance trends could play a role. Major developments in these areas would likely lead to adjustments in the market price as traders react to the new information and reassess the likelihood of extra innings.