TOTAL VOLUME:
$134.2b
24H VOL:
$129,159,707
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,442,132,418
404,744
Markets across
30,489
events
MATCHED EVENTS:
2,691
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 20, 4:15 AM EST
Kalshi
The Tokyo Yakult Swallows play against the Yomiuri Giants in a professional baseball game, with attention on whether either team scores in the first inning. Early runs often dictate the momentum and tactical adjustments for the rest of the match.
If either team scores a run in the first inning of the Tokyo Yakult Swallows vs Yomiuri Giants professional Japan NPB baseball game originally scheduled for Sep 20, 2026 at 1:00 AM EDT, then the market resolves to Yes.
Comparing prediction market odds to sportsbook odds reveals how the wisdom of the crowd differs from expert analysis. Typically, sportsbooks set lines based on statistical models and expert opinions, incorporating a profit margin. This market, driven by diverse participants on Kalshi, can sometimes offer different probabilities, especially as new information emerges or public sentiment shifts. Discrepancies can arise due to differing risk assessments or the influence of factors not fully captured by traditional models. It’s common to see prediction markets reflect a more nuanced view, particularly closer to the event.
On Kalshi, this market is priced using a continuous double auction. Traders buy and sell contracts representing different outcomes – in this case, whether a run will be scored in the first inning. The price of each contract reflects the market’s collective belief about the probability of that outcome. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate and new information becomes available, the prices adjust dynamically, creating a real-time assessment of the event’s likelihood. The market depth, visible on the platform, shows the volume of contracts available at various price points, indicating the strength of buying or selling pressure.
This market resolves around Sep 20, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Specifically, the resolution will depend on whether a run is scored during the first inning of the game between the Tokyo Yakult Swallows and the Yomiuri Giants. Official game data will be used to determine the result. Traders will be able to see the final outcome reflected in their account balances on Kalshi shortly after the game concludes and the information is verified. The outcome will be binary – a run scored or no run scored.
Several signals could influence trading activity in this market. Any news regarding starting pitchers, such as injuries or changes to the lineup, would likely cause price fluctuations. Weather conditions, particularly if they are expected to impact hitting or pitching, could also move the market. Furthermore, general public sentiment and any significant betting activity in traditional sportsbooks could influence traders on Kalshi. Unexpected announcements about player performance or team strategy could also lead to shifts in the market’s price as traders react to new information and adjust their predictions.