TOTAL VOLUME:
$134b
24H VOL:
$103,397,351
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,410,176,180
399,592
Markets across
30,097
events
MATCHED EVENTS:
2,622
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 13, 4:24 PM EST
Kalshi
Houston and Tampa Bay will compete in a professional baseball match scheduled for September 13, 2026. The event will be decided based on whether the game extends beyond the regular nine innings into extra play.
If at least 1 extra inning is played in the Houston vs Tampa Bay professional baseball game originally scheduled for Sep 13, 2026 at 1:40 PM EDT, then the market resolves to Yes.
Generally, prediction market odds tend to be more accurate than traditional sportsbook odds, particularly when considering the wisdom of the crowd. Sportsbooks often set initial lines to attract action, while this market reflects the aggregated beliefs of informed traders. However, discrepancies can exist due to differing market participants and the influence of public perception. It's common to see this market adjust more rapidly to new information, such as late-breaking injury reports or weather forecasts, compared to sportsbook lines which may be slower to update.
On Kalshi, this market is priced using a continuous double auction. Traders buy and sell contracts representing different outcomes, and the price of each contract reflects the market's probability assessment of that outcome occurring. As more traders participate, the prices converge to reflect the collective prediction. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price movements are driven by supply and demand; if many traders believe an outcome is likely, they will bid up the price of contracts representing that outcome, and vice versa. This dynamic pricing mechanism allows for a fluid and responsive market.
This market resolves around Sep 13, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Specifically, the resolution will depend on whether the Houston versus Tampa Bay baseball game officially goes into extra innings, as determined by the official game results. The official game results will be the source of truth for determining the outcome of this market. The market will settle to 100 for 'Yes' if extra innings are played, and to 0 for 'No' if the game concludes within the standard nine innings.
Several factors could significantly influence this market. Late-breaking news regarding starting pitchers, such as an unexpected injury, would likely cause price fluctuations. Weather conditions, particularly forecasts for rain delays or strong winds, could also impact the odds. Furthermore, in-game performance, such as a dominant pitching performance or a series of early scoring plays, could shift market sentiment. Any information that alters the perceived likelihood of a close, competitive game extending into extra innings has the potential to move this market.