TOTAL VOLUME:
$134.1b
24H VOL:
$133,388,117
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,436,095,462
405,232
Markets across
30,526
events
MATCHED EVENTS:
2,693
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 11, 9:39 PM EST
Kalshi
The Houston Astros take on the Tampa Bay Rays in a professional baseball game on September 11, 2026. A tied score after nine innings would send this contest to extra innings. Such games emphasize endurance and strategic decisions made by managers under pressure.
If at least 1 extra inning is played in the Houston vs Tampa Bay professional baseball game originally scheduled for Sep 11, 2026 at 7:10 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's prices are driven purely by supply and demand from traders expressing their beliefs. It’s common to see discrepancies, especially as new information emerges or public sentiment shifts. Analyzing these differences can offer insights into where the market finds value compared to conventional betting options, and whether the crowd believes a different outcome is more likely.
On Kalshi, this market is priced through a continuous order book where traders bid to buy and offer to sell contracts representing different outcomes. The price of a contract reflects the market’s assessment of the probability of that outcome occurring. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders are constantly adjusting their positions based on new information and their own analysis, leading to dynamic price movements. The current price indicates what a trader would need to pay to own a contract that pays out if the outcome it represents occurs.
This market resolves around Sep 12, 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 official MLB game results. The platform will then verify this information against reliable sources to determine which contracts will payout. Traders will be able to see the final outcome and settlement details on Kalshi following the game’s conclusion.
Several factors could influence the price of this market. Any news regarding potential pitching changes, weather forecasts impacting the game, or injuries to key players could all shift trader sentiment. Unexpected performance during the game itself, such as a dominant pitching performance or a series of errors, could also cause significant price movement. Furthermore, broader trends in baseball analytics or changes in public perception of the teams’ strengths could also play a role in how this market evolves leading up to Sep 12, 2026.