TOTAL VOLUME:
$134b
24H VOL:
$103,397,351
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,410,176,180
399,592
Markets across
30,097
events
MATCHED EVENTS:
2,622
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 22, 8:34 PM EST
Kalshi
This market tracks whether at least one run is scored during the opening inning of the Miami Marlins versus Houston Astros baseball game scheduled for July 22, 2026. The outcome depends on the actual play during the first inning of this professional matchup.
If either team scores a run in the first inning of the Miami vs Houston professional baseball game originally scheduled for Jul 22, 2026 at 8:10 PM EDT, then the market resolves to Yes.
Prediction market odds and sportsbook odds often diverge because they reflect different pricing mechanisms and participant bases. Sportsbooks set odds to balance their book and manage risk, while prediction markets aggregate trader beliefs through continuous price discovery. This market may show different implied probabilities than traditional sportsbooks, especially as new information surfaces or as the event draws closer. Comparing the two can reveal where the broader market consensus differs from professional oddsmakers' assessments.
On Kalshi, this market is priced through an 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 of market participants about the likelihood of a run scoring in the first inning. As traders place bids and offers, the market price adjusts continuously, creating a dynamic probability estimate that incorporates all available information and trader conviction.
This market resolves around Jul 23, 2026, once the first inning of the Miami versus Houston game concludes and the final run total is verifiable from credible public sources. The outcome is determined by whether at least one run crosses the plate during that inning, regardless of which team scores it. Resolution happens automatically after the event is confirmed, and traders' positions settle based on the actual result.
Several factors can shift odds in this market before it closes. Lineup announcements, starting pitcher changes, or injury updates to key players may alter expectations for early offensive production. Weather conditions, recent team performance trends, and historical first-inning scoring patterns also influence trader positioning. As game time approaches, any breaking news about team strategy or player availability can trigger sharp price movements, reflecting how quickly new information gets priced into prediction markets.