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 23, 8:04 PM EST
Kalshi
This market tracks whether either the Arizona Diamondbacks or St. Louis Cardinals scores at least one run during the first inning of their scheduled matchup on June 23, 2026. Early offensive production often sets the tone for a game and can influence momentum and strategy.
If either team scores a run in the first inning of the Arizona vs St. Louis professional baseball game originally scheduled for Jun 23, 2026 at 7:45 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 aggregate the beliefs of traders risking real capital on outcomes. Traders in this market may incorporate sharper analysis, live data, or contrarian views that sportsbooks have not yet priced in. Comparing the two can reveal where the crowd on Kalshi sees value relative to traditional betting venues, though both should be monitored as the game approaches.
On Kalshi, this market is priced through an order-book mechanism where traders submit bids and asks, and the last executed trade sets the visible market price. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price reflects the collective probability estimate of all participants willing to trade at that level. As new information emerges—lineup announcements, weather updates, or injury reports—traders adjust their orders, causing the price to move. This continuous repricing ensures the market remains responsive to real-world developments leading up to first pitch.
This market resolves around Jun 24, 2026, once the Arizona versus St. Louis game concludes and the first inning result is verified against credible public sources. The outcome hinges on whether either team scores at least one run during the opening inning. Resolution is straightforward: if a run crosses the plate in the first inning, the corresponding outcome wins; if no runs score, the opposing outcome resolves true. Official box scores and game records confirm the final determination.
Several catalysts can shift prices in this market before the game begins. Lineup announcements, particularly the starting pitcher for each team, carry significant weight since pitcher quality directly influences early-inning scoring rates. Injury reports, weather conditions, and recent offensive or pitching form can all trigger repricing. Once the game starts, the first few pitches and any early baserunners will prompt sharp traders to adjust positions. Breaking news about roster changes or field conditions in the hours before first pitch may also spark trading activity and price movement.