TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 26, 11:06 PM EST
Kalshi
The Tampa Bay and Philadelphia baseball teams will compete in a match scheduled for September 26, 2026. If the game remains tied after the standard nine innings, it will proceed to extra innings, extending play until a winner is determined. This outcome determines whether the game lasts longer than the regulation time.
If at least 1 extra inning is played in the Tampa Bay vs Philadelphia professional baseball game originally scheduled for Sep 26, 2026 at 7:15 PM EDT, then the market resolves to Yes.
Prediction market odds often reflect the wisdom of the crowd, potentially differing from sportsbook odds which are set by professional oddsmakers. Sportsbooks may incorporate factors like public betting percentages and risk management into their lines, while this market relies on individuals’ independent assessments. It’s common to see discrepancies, especially before significant news breaks or as the event draws closer. These differences can present opportunities for informed traders who believe the market has mispriced the probability of extra innings. Examining both sets of odds can provide a more comprehensive view of the expected outcome.
On Kalshi, this market is priced through a continuous order book where traders buy and sell contracts representing the probability of the event occurring. The price of a contract directly reflects the market's implied probability; a higher price indicates a greater perceived chance of extra innings. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders adjust their bids and asks based on their own analysis and expectations, leading to a dynamic price discovery process. The market aggregates these individual assessments to arrive at a collective prediction. As more traders participate, the price tends to become more efficient and reflective of the true probability.
This market resolves around Sep 27, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on whether the specified baseball game between Tampa Bay and Philadelphia goes to extra innings as officially recorded by Major League Baseball. The official game results will be used to determine if the market resolves in favor of the ‘Yes’ or ‘No’ outcome. Traders will be able to view the final result and settlement details on Kalshi following the conclusion of the game and official verification.
Several factors could influence the price of this market. Any news regarding potential pitching changes, weather forecasts impacting game conditions, or injuries to key players could shift trader sentiment. Unexpected lineup announcements or reports of a particularly strong or weak pitching matchup could also cause movement. Furthermore, significant betting activity in sportsbooks or public polls suggesting a different outcome than the market’s current expectation could prompt traders to reassess their positions. Monitoring these signals can provide insight into potential price fluctuations before Sep 27, 2026.