How are these numbers calculated?

Big Games

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

Saturday, 4/1100.0*Chance in playoffs100.0*Average seed
LO 12 HA 20 In
+0.2
RS 10 HA 20 In
+0.2
SPA 12 HA 15 In
+0.3
BF 12 SPA 10 +0.1
SPA 15 RS 5 +0.1
-0.1
SPA 10 LO 12 -0.0
+0.0
LO 10 SPA 12 +0.0
-0.1
If winner is:HomeTieAway
Monday, 4/3100.0*Chance in playoffs100.0*Average seed
HA vs OS+0.1+0.1-0.1

What If

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

100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs123456Count
19-20In1008,103,149*
181-1-0In95514,635,369
0-0-2In10020,205
170-1-1In937769,866
160-2-0In55457,334,951
Total:In871330,863,540

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs