TOTAL VOLUME:
$134.2b
24H VOL:
$134,145,987
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,441,166,947
406,422
Markets across
30,383
events
MATCHED EVENTS:
2,688
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 15, 11:24 PM EST
Kalshi
This event group covers the outcome of the first 5 innings of the MLB game between the Pittsburgh Pirates and Oakland Athletics scheduled for June 15, 2026 at 9:40 PM EDT. Markets track whether Pittsburgh wins, Oakland wins, or the game is tied after 5 complete innings.
In the upcoming MLB game between the Pittsburgh Pirates and Athletics, scheduled for June 15 at 9:40 PM ET: This market will resolve to "Pittsburgh Pirates" if the Pittsburgh Pirates is winning the game at the conclusion of the 5th inning. This market will resolve to "Athletics" if the Athletics is winning the game at the conclusion of the 5th inning. If the game is tied at the conclusion of the 5th inning, this market will resolve to "Draw". If the game is postponed, this market will remain open until the 5th inning has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.
Resolution is based on the run differential at the end of the first five innings of the Pittsburgh vs Oakland game originally scheduled for June 15, 2026 at 9:40 PM EDT. Each market outcome corresponds to a specific team and margin threshold: outcomes resolve Yes if the designated team wins by more than the specified run margin (either 1.5 or 2.5 runs) in the first five innings. If the game is postponed or delayed, the market remains open and closes after the rescheduled game concludes within two days.
Polymarket and Kalshi serve different trader bases and operate under distinct rule frameworks. 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. Kalshi adds a run-margin condition (over 2.5 runs), making it a narrower bet than Polymarket's simpler winner format. Liquidity depth, fee structures, and user demographics also drive pricing gaps. Arbitrage traders monitor these spreads, but differences can persist if one platform attracts stronger conviction on a particular side or if regulatory constraints limit capital flow between venues.
Key catalysts include roster updates, injury announcements, and weather forecasts affecting ball carry and pitcher performance. Starting pitcher confirmation and recent offensive trends—particularly early-inning scoring rates—often trigger sharp price moves. Betting line shifts at major sportsbooks can signal sharp money and influence prediction market traders. Game-day conditions like wind speed, humidity, and field dimensions also matter for a five-inning outcome. Close to game time, lineup announcements and bullpen availability typically drive final repricing.