Pittsburgh Pirates Playoff Chances 2014-3 50/50

Tied with Tigers 0-0 (Top 6th), playoff odds unchanged at 68.7%
64-54   .542

How are these numbers calculated?

Big Games

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

Tuesday100.0*Chance in playoffs100.0*Average seed
Pirates 2 Orioles 9 -1.8
-0.3
Wednesday100.0*Chance in playoffs100.0*Average seed
Pirates 9 Orioles 8 +1.7
+0.3
Braves 1 Brewers 6 -0.3

What If

Chances based on how well the Pirates finish out the regular season.   Explain

Games Above .500
Chance Will Make Playoffs