Boston Red Sox vs. New York Yankees: O/U 5.5

Kalshi — primary rule

If Boston and New York Y collectively score more 5.5 runs in the Boston vs New York Y professional baseball game originally scheduled for Sep 30, 2026 at 8:00 PM EDT, then the market resolves to Yes.

Polymarket — resolution criteria

In the upcoming MLB game between the Boston Red Sox and New York Yankees, scheduled for September 30 at 8:00 PM ET: This market will resolve to "Over" if the Boston Red Sox and New York Yankees combine to score 6 or more runs in this game. If the combined total is less than 6, this market will resolve to "Under". 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, 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.