TOTAL VOLUME:
$134b
24H VOL:
$103,397,351
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,410,176,180
399,592
Markets across
30,097
events
MATCHED EVENTS:
2,622
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 26, 7:29 PM EST
Kalshi
This event group contains two distinct markets about the Seattle Mariners vs. Cleveland Guardians MLB game scheduled for June 27, 2026 at 7:10 PM ET. The Predict platform market resolves on the full-game winner, while the Kalshi platform market resolves on whether either team scores in the first inning only. These are fundamentally different settlement events despite referencing the same underlying game.
If either team scores a run in the first inning of the Seattle vs Cleveland professional baseball game originally scheduled for Jun 26, 2026 at 7:10 PM EDT, then the market resolves to Yes.
In the upcoming MLB game between the Seattle Mariners and Cleveland Guardians, scheduled for June 27 at 7:10PM ET: This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game. This market will resolve to "Cleveland Guardians" if the Cleveland Guardians win the game. 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 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.
Kalshi and Predict can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Each platform attracts different trader demographics, liquidity pools, and fee structures, which naturally produces price variation. Kalshi and Predict may also have slightly different market designs—order book depth, minimum bet sizes, or settlement rule clarity—that influence how traders value the same outcome. Additionally, timing lags in information flow between platforms and differences in user base expertise can widen spreads, especially in lower-volume markets where fewer trades anchor the price.
Key catalysts include lineup announcements, starting pitcher confirmation, and any late roster changes or injuries affecting either team's offensive capability. Weather conditions at game time—wind direction and temperature—can significantly influence early scoring probability. Real-time momentum during pre-game warmups and early at-bats may also shift trader sentiment. Breaking news on player availability or unexpected pitching changes in the hours before first pitch typically triggers sharp repricing as new information reaches the market.