TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 2, 7:59 PM EST
Kalshi
A professional baseball game between two teams is scheduled for July 2, 2026. The event concerns whether either team will score during the first inning of this matchup.
If either team scores a run in the first inning of the Tampa Bay vs Kansas City professional baseball game originally scheduled for Jul 2, 2026 at 7:40 PM EDT, then the market resolves to Yes.
Prediction market odds and sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets like this one are driven by traders seeking to profit from accurate forecasts. Prediction market participants frequently incorporate real-time information—such as late-inning pitching changes or weather updates—faster than traditional sportsbooks adjust their lines. Comparing this market's odds to major sportsbook lines can reveal where traders see value or inefficiency in the consensus.
On Kalshi, this market is priced through a continuous order-book mechanism where traders buy and sell shares representing each outcome. 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 probability estimate: a share trading at 65 cents implies roughly a 65% chance of that outcome occurring. As new information emerges—injury reports, weather forecasts, or betting syndicate activity—traders adjust their bids and offers, moving the price up or down in real time. This dynamic pricing ensures the market continuously incorporates the latest available signals.
This market resolves around Jul 3, 2026, once the game concludes and the first inning result is confirmed. The outcome is verified against credible public sources reporting the final score and inning-by-inning breakdown. Traders holding shares in the winning outcome receive their payout, while losing positions expire worthless. The resolution hinges solely on whether either team scores at least one run during the first inning, regardless of which team ultimately wins the game.
Several catalysts can shift odds in this market before first pitch. Lineup announcements—particularly the starting pitcher for either team—carry significant weight, as dominant starters reduce first-inning scoring odds. Weather updates, especially wind direction and temperature at the stadium, influence ball carry and offensive production. Injury reports to key hitters or pitchers can swing probabilities sharply. Late-breaking betting syndicate activity and sharp money flowing into one side often signals informed positioning. Team offensive and defensive trends, recent first-inning performance, and head-to-head historical patterns also drive trader sentiment and price movement.