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OPEN INTEREST:
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400,720
Markets across
30,097
events
MATCHED EVENTS:
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PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 19, 5:14 PM EST
Kalshi
San Diego and Kansas City will play a Major League Baseball game on July 19, 2026. This market resolves Yes if the game extends beyond nine innings, requiring extra innings to determine a winner.
If San Diego and Kansas City go to extra innings in the San Diego vs Kansas City professional baseball game originally scheduled for Jul 19, 2026 at 2:10 PM EDT, then the market resolves to Yes.
Prediction market odds and traditional sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and protect their margins, while prediction markets aggregate trader beliefs through continuous price discovery. This market aggregates real-money bets from thousands of participants with skin in the game, potentially offering a crowd-sourced view that differs from bookmaker pricing. Comparing the two can reveal where public perception and professional oddsmakers disagree on the likelihood of extra innings in this contest.
On Kalshi, this market is priced through a continuous order-book mechanism where traders buy and sell shares representing "Yes" or "No" outcomes. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each share reflects the collective belief about the probability of extra innings, ranging from $0 to $1. As new information emerges—injuries, weather, lineup changes—traders adjust their positions, moving the price up or down. This dynamic pricing model ensures the market stays efficient and responsive to real-world developments leading up to game time.
This market resolves around Jul 19, 2026, once the game concludes and the final result is verifiable from credible public sources. The outcome is determined by whether the contest extends into extra innings or concludes within regulation play. Resolution happens automatically after the event is confirmed, and traders receive their payouts based on the actual result. No further action is required from participants once the game ends and the market settles.
Several factors can shift odds in this market before Jul 19, 2026. Roster changes, such as key player injuries or last-minute lineup adjustments, often trigger sharp price moves. Weather conditions—wind speed, temperature, and humidity—affect ball carry and can influence run-scoring pace. Bullpen depth and recent form matter significantly, since tired or ineffective relievers increase the likelihood of close games that reach extra innings. Breaking news about team momentum, recent performance trends, or historical head-to-head patterns also drive trader activity and repricing throughout the lead-up to first pitch.