TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 22, 10:21 PM EST
Kalshi
This event assesses whether either team scores a run in the first inning of the professional baseball game between Houston and Seattle on September 22, 2026. Early scoring can shape the game's trajectory, reflecting the performance of starting pitchers and the offensive approaches of both teams.
If either team scores a run in the first inning of the Houston vs Seattle professional baseball game originally scheduled for Sep 22, 2026 at 9:40 PM EDT, then the market resolves to Yes.
Often, prediction market odds reflect a different perspective than those found at sportsbooks. Sportsbooks typically incorporate a 'vig' or commission into their odds, aiming to profit regardless of the outcome. This market, however, is driven purely by what traders believe will happen, creating a more direct expression of probability. While sportsbooks may initially set lines based on statistical models and expert analysis, this market can quickly adjust to incorporate new information or even contrarian viewpoints not immediately reflected in traditional odds. It’s a useful comparison to see where the crowd diverges from professional oddsmakers.
On Kalshi, this market is priced using a continuous double auction. Traders buy and sell contracts representing the two possible outcomes – over 0.5 runs or under 0.5 runs in the first inning. The price of each contract represents the probability of that outcome occurring, as perceived by the market participants. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate and express their views, the prices adjust accordingly, reflecting the collective wisdom of the crowd. The closer we get to game time, the more the price will likely reflect the expected outcome based on starting pitchers, batting lineups, and weather conditions.
This market resolves around Sep 23, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Specifically, the official scoring of the first inning of the Houston versus Seattle baseball game will determine whether over or under 0.5 runs were scored. The official MLB box score will serve as the source of truth for the resolution. The market will then settle based on whether the actual result matches the contracts purchased by traders. It’s important to note that any potential delays in the game will also affect the resolution timeline.
Several factors could significantly influence this market. Any news regarding the starting pitchers – injuries, changes in form, or even weather forecasts impacting their performance – could cause price fluctuations. Lineup announcements are also crucial, as strong hitters entering or leaving the lineup can shift expectations. Unexpected weather conditions, such as strong winds or rain delays, could also play a role. Furthermore, any late-breaking news about player health or team strategy could lead to traders adjusting their positions, causing the price of contracts to move dynamically before the game begins.