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: Jun 26, 7:29 PM EST
Kalshi
This event group contains two distinct markets about the Arizona Diamondbacks vs. Tampa Bay Rays game: one resolving on the full-game winner, and another resolving on whether either team scores in the first inning. The markets are fundamentally different in scope and timing, creating a critical divergence in resolution logic.
If either team scores a run in the first inning of the Arizona vs Tampa Bay professional baseball game originally scheduled for Jun 26, 2026 at 7:10 PM EDT, then the market resolves to Yes.
In the upcoming MLB game between the Arizona Diamondbacks and Tampa Bay Rays, scheduled for June 27 at 6:10PM ET: This market will resolve to "Arizona Diamondbacks" if the Arizona Diamondbacks win the game. This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays win the game. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.
Kalshi and Predict can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Predict and Kalshi operate under different market mechanics, fee structures, and user bases, which can create temporary price gaps. Kalshi's binary yes-or-no format may attract traders with strong convictions about early scoring, while Predict's structure might appeal to a broader demographic. Liquidity depth, order book composition, and the timing of large trades also influence how quickly each platform reprices. These differences typically narrow as arbitrageurs exploit spreads, but during low-volume periods or ahead of game time, meaningful divergence can persist between the two venues.
Lineup announcements, starting pitcher confirmations, and weather conditions are primary catalysts for this market. Injuries to key batters or pitchers, bullpen availability, and recent offensive or defensive trends can shift trader expectations about early scoring probability. Late-breaking news on field conditions or umpire assignments may also influence positioning. As game time approaches, real-time betting action and sharp money flowing into either side can accelerate repricing across both platforms, particularly if new information emerges about team readiness or matchup dynamics.