TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 27, 9:54 PM EST
Kalshi
This baseball event covers the Seattle Mariners vs Cleveland Guardians game scheduled for June 27, 2026. Bettors predict the margin of victory, with separate markets for Cleveland winning by various margins and Seattle winning by various margins.
The Seattle vs Cleveland game resolves based on the final margin of victory. Cleveland markets resolve to Yes if Cleveland wins by more than the specified run margin (e.g., Over 3.5 resolves Yes if Cleveland wins by 4+ runs, Over 2.5 resolves Yes if Cleveland wins by 3+ runs, Over 1.5 resolves Yes if Cleveland wins by 2+ runs). Seattle markets operate identically, resolving to Yes if Seattle wins by more than the specified margin (Over 1.5 for 2+ run wins, Over 2.5 for 3+ run wins, Over 3.5 for 4+ run wins). Only one team can win the game, so only one side of the spread markets can resolve to Yes. The game is originally scheduled for June 27, 2026 at 7:10 PM EDT. Resolution is based on the official final score of the completed game.
Prediction market odds and sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and manage risk, while prediction markets aggregate the beliefs of traders risking real capital. This market may show tighter or wider spreads than traditional sportsbooks depending on trader conviction and liquidity. Comparing the two can reveal where the crowd sees value or where sharp money is concentrated, though neither is inherently more accurate.
On Kalshi, this market is priced through an order-book mechanism where traders buy and sell contracts reflecting different spread outcomes. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The platform displays bid-ask spreads that tighten or widen based on trading activity and conviction. Prices move continuously as new information emerges and traders adjust positions. Liquidity depth determines how easily you can enter or exit at posted prices, and wider spreads typically indicate lower participation or higher uncertainty around the spread outcome.
This market resolves around Jun 28, 2026, once the Seattle vs Cleveland game concludes and the final spread is verifiable from credible public sources. The outcome is determined by the official final score and the point differential between the two teams. Resolution occurs after the game ends and results are confirmed, at which point all positions settle according to whether the actual spread matched the predicted range. Traders should monitor official league reporting to anticipate the exact resolution timing.
Key catalysts include injury announcements to star players, lineup changes, weather conditions on game day, and betting-market shifts at major sportsbooks. Public injury reports and team statements can trigger sharp repricing as traders reassess win probability and expected point differential. Late-breaking news about player availability or coaching decisions often moves odds significantly in the final hours before kickoff. Additionally, sharp money flowing into sportsbooks or coordinated trading activity on this market can signal where informed participants expect the spread to land, prompting broader position adjustments.