TOTAL VOLUME:
$134.1b
24H VOL:
$133,388,117
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,436,095,462
405,232
Markets across
30,526
events
MATCHED EVENTS:
2,693
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 20, 8:24 AM EST
Kalshi
This event group covers a single NPB (Nippon Professional Baseball) matchup between the Hanshin Tigers and Yokohama BayStars scheduled for July 20, 2026 at 5:00 AM EDT. Polymarket offers a binary winner-take-all market, while Kalshi offers multiple run-differential markets with varying thresholds.
In the upcoming NPB game, scheduled for July 20 at 5:00AM ET: If the Hanshin Tigers win, the market will resolve to "Hanshin Tigers". If the Yokohama BayStars win, the market will resolve to "Yokohama BayStars". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50. The primary resolution source will be official information from the NPB. A consensus of credible reporting may also be used.
Resolution is determined by the final run differential in the Yokohama DeNA BayStars vs Hanshin Tigers game scheduled for July 20, 2026 at 5:00 AM EDT. Four separate markets assess whether Hanshin Tigers wins by more than 2.5 runs, Hanshin Tigers wins by more than 1.5 runs, Yokohama DeNA BayStars wins by more than 1.5 runs, or Yokohama DeNA BayStars wins by more than 2.5 runs. The run differential is calculated as the absolute difference between final scores, with the outcome determined by which team achieves the specified margin of victory.
Prediction markets and sportsbooks price events differently. Sportsbooks set odds to balance their book and manage risk, often incorporating a margin. Prediction markets, by contrast, aggregate trader beliefs directly—prices reflect what participants actually think will happen, without a built-in house edge. This market's odds may diverge from traditional sportsbook lines because traders here have different information, time horizons, or risk appetites. Over time, prediction market prices tend to be highly accurate, making them a useful benchmark for comparing against conventional betting lines.
Key catalysts include roster announcements, injury updates, recent team performance trends, and head-to-head historical matchups. Weather conditions on game day can significantly affect play, especially in baseball. Trading volume and sentiment shifts on Polymarket and Kalshi themselves can signal new information spreading through the prediction market community. Media coverage, expert analysis, and betting action on external sportsbooks may also influence trader behavior here. Watch for any late-breaking news about player availability or tactical changes that could reshape expectations before the first pitch.