In the upcoming MLB game, scheduled for September 17 at 7:40PM ET: If the Seattle Mariners win, the market will resolve to “Mariners”. If the Kansas City Royals win, the market will resolve to “Royals”. 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.