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: Aug 21, 8:34 PM EST
Kalshi
For the match between the Oakland Athletics and the Houston Astros, the first inning will be closely watched to see if either side manages to put runs on the board. Early scoring can provide a crucial advantage in the contest.
If either team scores a run in the first inning of the A's vs Houston professional baseball game originally scheduled for Aug 21, 2026 at 8:10 PM EDT, then the market resolves to Yes.
On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. On Kalshi, traders manually set the odds for this market based on their expectations for the opening inning. The current implied probability reflects the collective view of participants, with price fluctuations driven by new information such as lineup changes, weather updates, or pitcher performance leading up to first pitch.
This market resolves around Aug 22, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The result depends solely on whether either team scores a run in the first inning of the game, as recorded by official scorekeepers and widely reported media sources.
Key signals that could shift odds in this market include last-minute lineup announcements, weather delays or changes, starting pitcher performance updates, and pre-game betting trends. Any development affecting the likelihood of an early run—such as a star batter being scratched or a pitcher’s recent dominance—may cause rapid price adjustments as traders react on Kalshi.