Live prediction market odds for New York Yankees vs. Boston Red Sox (6:45 PM ET). Compare prices across Kalshi and Polymarket.
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Kalshi / Polymarket
2026-04-21
New York Yankees vs. Boston Red Sox (6:45 PM ET) — MLB game scheduled for 2026-04-21. Compare live prediction market odds from Kalshi, Polymarket, and more on Prediction Hunt.
New York Yankees leads the “New York Yankees vs. Boston Red Sox (6:45 PM ET)” event at 51.5% implied probability, followed by Boston Red Sox at 49.8%. A 3.0% cross-platform spread signals an active arbitrage window.
New York Yankees vs. Boston Red Sox (6:45 PM ET) is a prediction market event currently tracked across 2 platforms (Kalshi, Polymarket). New York Yankees leads at 52% implied probability, making it the market favorite. Other contenders include Boston Red Sox at 50%.
New York Yankees currently leads at 52% implied probability. Behind New York Yankees, Boston Red Sox at 50% are the next closest contenders. A 3.0% spread across platforms indicated moderate disagreement on the latest developments.
Here are the latest odds across Kalshi, Polymarket: New York Yankees: 53¢ on Kalshi, 50¢ on Polymarket. Boston Red Sox: 50¢ on Kalshi, 50¢ on Polymarket. The 3.0% spread shows moderate platform divergence worth monitoring for potential opportunities.
A price of 52¢ means the market estimates a 52% probability that New York Yankees will be the outcome. Buying one share at 52¢ pays out $1.00 if correct — a 92% 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 New York Y vs Boston professional baseball game originally scheduled for Apr 21, 2026 at 6:45 PM EDT, then the market resolves to Yes.
The following market refers to the New York Y vs Boston professional baseball game originally scheduled for Apr 21, 2026 at 6:45 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 New York Yankees and Boston Red Sox, scheduled for April 21 at 6:45PM ET: This market will resolve to "New York Yankees" if the New York Yankees win the game. This market will resolve to "Boston Red Sox" if the Boston Red Sox 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.
New York Yankees
51.5% avg
