Washington Nationals Playoff Chances 2013-3 50/50

Lost to Arizona 2-3, lottery seed unchanged at 12
86-76   .531

How are these numbers calculated?

Lottery

We are out of the playoffs. Here are the big games and what ifs for draft seeds.
Although it might be more fun to go down swinging.

Big Games

Friday100.0*Lottery seed
Arizona 4 Washington 8 -0.4
Baltimore 3 Boston 12 -0.2
White Sox 1 Kansas City 6 +0.1
Houston 2 Yankees 3 +0.1
Saturday100.0*Lottery seed
Arizona 0 Washington 2 -0.3
White Sox 6 Kansas City 5 -0.2
Baltimore 6 Boston 5 +0.1
SundayNone
Games Above .500
Chance Will Make Playoffs