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: Jun 26, 8:09 AM EST
Kalshi
This event group covers the outcome of a single NPB (Nippon Professional Baseball) game between the Saitama Seibu Lions and Nippon Ham Fighters scheduled for June 26, 2026 at 5:00 AM EDT. Markets on Polymarket and Kalshi are tracking which team wins this matchup, with different resolution structures for handling edge cases.
In the upcoming NPB game, scheduled for June 26 at 5:00AM ET: If the Saitama Seibu Lions win, the market will resolve to "Saitama Seibu Lions". If the Nippon Ham Fighters win, the market will resolve to "Nippon Ham Fighters". 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.
Resolution is determined by the final result of the game as originally scheduled for Jun 26, 2026 at 5:00 AM EDT. If the game is postponed or delayed, markets remain open and close after the rescheduled game concludes within two days. Should the game be cancelled or rescheduled beyond two days, markets resolve to a fair price per rules. Tied games result in 50/50 resolution.
Polymarket and Kalshi can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Platform differences stem from distinct user bases, fee structures, and trading mechanics. Kalshi and Polymarket attract different trader demographics and risk appetites, leading to temporary price gaps. Liquidity concentration also varies—if one platform has deeper order books, prices may move faster there, creating arbitrage opportunities. Settlement rules, withdrawal speeds, and platform reputation can influence how traders price identical outcomes. These divergences typically narrow as informed traders exploit the spread, but they persist due to friction costs and market segmentation across venues.
Key catalysts include lineup announcements, injury reports, recent team performance, weather conditions on game day, and head-to-head historical matchups. Roster changes, manager decisions, or unexpected roster absences can shift trader sentiment significantly. Media coverage, expert commentary, and betting-market activity on sportsbooks may also influence prediction market prices as new information surfaces. Trading volume spikes often accompany major news, so monitoring this market's activity alongside sports news feeds helps you anticipate price moves and identify when consensus is shifting.