TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 22, 2:24 PM EST
Kalshi
In professional baseball, the first inning is often a critical period where teams establish early momentum. This market tracks whether the San Francisco and Kansas City teams will score at least one run during the opening inning of their scheduled matchup on July 22, 2026.
If either team scores a run in the first inning of the San Francisco vs Kansas City professional baseball game originally scheduled for Jul 22, 2026 at 2:10 PM EDT, then the market resolves to Yes.
Prediction market odds and sportsbook odds often diverge because they operate under different incentive structures. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets reflect aggregated trader beliefs without a built-in spread. This market may show different implied probabilities than traditional sports betting venues because traders are directly wagering on their conviction rather than playing against a bookmaker. Over time, prediction markets tend to incorporate sharp information quickly, sometimes pricing outcomes differently than sportsbooks, especially as game time approaches and new data emerges.
On Kalshi, this market is priced through an 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 assessment of the probability that a run will score in the first inning. As traders place bids and offers, the midpoint price adjusts in real time, creating a continuous price discovery process. This transparent, peer-to-peer pricing model allows participants to enter or exit positions at any time before market close, with no house spread or intermediary markup.
This market resolves around Jul 22, 2026, once the first inning of the San Francisco versus Kansas City game concludes. The outcome is confirmed by verifying the official game record against credible public sources, ensuring accuracy and fairness. Traders holding positions will see their contracts settle based on whether at least one run crossed the plate during that inning. Resolution typically occurs within hours of game completion, allowing quick payouts to winning traders.
Several factors can shift odds before the first pitch. Lineup announcements, injury reports, or weather updates affecting playing conditions may alter trader expectations about early scoring. Starting pitcher form, recent offensive trends, and bullpen availability all influence how traders assess the likelihood of an opening-inning run. Breaking news about team strategy or last-minute roster changes can trigger sharp repricing. As game time approaches, late-arriving information and final pregame analysis typically drive the most significant moves, with professional traders often making adjustments in the final minutes before the market closes.