George Springer hit a three-run homer in the seventh inning that sent the Toronto Blue Jays to a 4-3 win over the Seattle Mariners in Game 7 of the AL Championship series. A stat called championship win probability added (cWPA) — published by Baseball Reference — measures how much a particular play increased or decreased a team’s chance of winning that year’s World Series. Springer’s homer increased Toronto’s chance of winning the World Series by 19.73%. It ranks as one of the 10 biggest non-World Series plays since 1903.