Live prediction market odds for Boston Red Sox vs. Cleveland Guardians (1:40 PM ET). Compare prices across Kalshi and Polymarket.
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Kalshi / Polymarket
2026-05-31
Boston Red Sox vs. Cleveland Guardians (1:40 PM ET) — MLB game scheduled for 2026-05-31. Compare live prediction market odds from Kalshi, Polymarket, and more on Prediction Hunt.
Boston Red Sox leads the “Boston Red Sox vs. Cleveland Guardians (1:40 PM ET)” event at 50.3% implied probability, followed by Cleveland Guardians at 49.0%. A 2.5% cross-platform spread signals an active arbitrage window.
Boston Red Sox vs. Cleveland Guardians (1:40 PM ET) is a prediction market event currently tracked across 2 platforms (Kalshi, Polymarket). Boston Red Sox leads at 50% implied probability, making it the market favorite. Other contenders include Cleveland Guardians at 49%.
Boston Red Sox currently leads at 50% implied probability. Behind Boston Red Sox, Cleveland Guardians at 49% are the next closest contenders. A 2.5% spread across platforms indicated moderate disagreement on the latest developments.
Here are the latest odds across Kalshi, Polymarket: Boston Red Sox: 49¢ on Kalshi, 52¢ on Polymarket. Cleveland Guardians: 50¢ on Kalshi, 49¢ on Polymarket. The 2.5% spread shows moderate platform divergence worth monitoring for potential opportunities.
A price of 50¢ means the market estimates a 50% probability that Boston Red Sox will be the outcome. Buying one share at 50¢ pays out $1.00 if correct — a 100% return — or $0 if wrong. This is the core mechanic of prediction markets: the price directly reflects the crowd's probability estimate.
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Official settlement criteria, resolution sources, and edge cases across Kalshi and Polymarket.
KalshiIf Boston wins the Boston vs Cleveland professional baseball game originally scheduled for May 31, 2026 at 1:40 PM EDT, then the market resolves to Yes.
The following market refers to the Boston vs Cleveland professional baseball game originally scheduled for May 31, 2026 at 1:40 PM EDT. If this game is postponed or delayed, the market will remain open and close after the rescheduled game has finished (within two days). If the game is cancelled or rescheduled to over two days away, the market will resolve to a fair price in accordance with the rules.
PolymarketIn the upcoming MLB game between the Boston Red Sox and Cleveland Guardians, scheduled for May 31 at 1:40PM ET: This market will resolve to "Boston Red Sox" if the Boston Red Sox 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.
Boston Red Sox
50.3% avg
