Calculating the Seattle Mariners Playoff Chances

September 3, 2014; Oakland, CA, USA; Seattle Mariners second baseman Robinson Cano (22, right) forces out Oakland Athletics fifth baseman Stephen Vogt (21, left) during the fifth inning at O.co Coliseum. The Mariners defeated the Athletics 2-1. Mandatory Credit: Kyle Terada-USA TODAY Sports

September Records

If you take the Mariners’ winning percentage in September and average it with the Angels’ losing percentage in September, you get the chance that the Mariners will win tonight’s game. Then divide by two to find the chance the Mariners win their remaining two games. Then do the same thing for the Texas and Oakland and multiply the two answers together.

(.480+.275)/2= .428 or 42.8% chance the Mariners win tonight.

.428/2= .214 or 21.4% chance the Mariners win their remaining two games.

(.400+.417)/2= .408 or 40.8% chance that Oakland loses tonight.

.408/2= .204 or 20.4% chance that Oakland loses their remaining two games.

(.204)x(.214)= .0437 or 4.37% chance the Mariners make the playoffs.