New York Yankees Playoff Chances 2012 50/50

Beat Boston 14-2, average seed up 0.6 to 1
95-67   .586

How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Monday100.0*Average seed
Yankees 10 Boston 2 +0.5
Tampa Bay 5 Baltimore 3 +0.4
Tuesday100.0*Average seed
Yankees 4 Boston 3 +0.5
Tampa Bay 0 Baltimore 1 -0.3
Wednesday100.0*Average seed
Yankees 14 Boston 2 +0.6
Tampa Bay 4 Baltimore 1 +0.3
Oakland 12 Texas 5 -0.2
Games Above .500
Chance Will Make Playoffs