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 23, 11:07 PM EST
Kalshi
The event concerns a professional baseball game between two teams scheduled for September 23, 2026. The focus is on whether the game will extend beyond the standard nine innings due to a tie after the ninth inning. This extension would result in additional innings being played to determine a winner.
If at least 1 extra inning is played in the Arizona vs Colorado professional baseball game originally scheduled for Sep 23, 2026 at 8:40 PM EDT, then the market resolves to Yes.
Typically, prediction market odds reflect the wisdom of the crowd and can differ from traditional sportsbook odds. Sportsbooks often set initial lines to balance action, while this market allows traders to freely express their beliefs about the probability of extra innings in the Arizona vs Colorado game. If a significant number of traders believe the sportsbook is undervaluing or overvaluing the chance of extra innings, the odds on Kalshi will adjust accordingly. It’s common to see discrepancies, especially as new information emerges or public perception shifts.
On Kalshi, this market is priced using a continuous double auction. Traders buy and sell contracts representing the probability of extra innings occurring in the Arizona vs Colorado game. As more people buy contracts indicating they believe extra innings *will* happen, the price of those contracts increases, and the implied probability rises. Conversely, selling contracts lowers the price and probability. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price reflects the collective assessment of all participants and dynamically adjusts based on supply and demand for these contracts.
This market resolves around Sep 24, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will depend on whether extra innings are played in the Arizona vs Colorado game. Official game results from a recognized sports data provider will be used to determine if extra innings occurred. The market will then settle, and traders will receive payouts based on their positions at the time of resolution. It's important to monitor the game’s progress leading up to the end date.
Several factors could influence this market before resolution. Any news regarding potential starting pitchers, weather forecasts predicting rain delays (which could extend the game), or injuries to key players on either the Arizona or Colorado team could all cause significant movement. Changes in public perception, driven by expert analysis or social media discussion, can also impact trading activity. Unexpected late-game developments during the game itself, such as a close score or dramatic plays, would likely lead to rapid shifts in the market as well.