Pittsburgh Pirates Playoff Chances 2011 50/50

Lost to San Diego 3-4, playoff odds down 9.4 to 10.6%
4-4   .500

How are these numbers calculated?

Big Games

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

Friday, 4/8100.0*Chance in playoffs100.0*Average seed
Pittsburgh 3 San Diego 4 -13.1
-1.7
Milwaukee 1 Florida 3 +1.9
Colorado 7 Arizona 5 +1.1
San Francisco 0 Cincinnati 7 -1.0
Houston 2 Los Angeles 1 +0.6
+0.1
Chicago 7 Philadelphia 6 +0.4
St. Louis 0 Atlanta 1 +0.4
-0.1
New York 6 Washington 7 +0.3
+0.1
If winner is:HomeAway
Saturday, 4/9100.0*Chance in playoffs100.0*Average seed
Pittsburgh vs Milwaukee+10.6Out
+2.0-2.0
San Francisco vs Colorado-2.9+2.9
San Diego vs Arizona+2.4-2.4
+0.2-0.2
Washington vs Atlanta+2.3-2.3
+0.2-0.2
Florida vs New York-0.6+0.6
Chicago vs St. Louis+0.4-0.4
Cincinnati vs Houston-0.4+0.4
Philadelphia vs Los Angeles+0.3-0.3
+0.1-0.1

What If

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

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516Count
62-042.4%03138311772001,379,690
51-1Out1513202320145102,767,602
40-2Out0311262430401,380,196
Total:10.6%010987810121110968105,527,488
Games Above .500
Chance Will Make Playoffs