How are these numbers calculated?

Big Games

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

Sunday100.0*Average seed
Starship Troubas 248.7 watch your mouth 282.3 -0.4
Hughes Laine is 232.45 Dumpster Fire B 210.2 +0.1
Mudbugs 205.3 What's the Yams? 182.15 +0.1
Surpsu's Team 215.65 Kovalchuck Me O 222.3 +0.1
Monday100.0*Average seed
What's the Yams? 231.85 Starship Troubas 205.05 -0.7
Benn Laden 208 Surpsu's Team 193.2 +0.1
Dumpster Fire B 175.7 Mudbugs 162.5 -0.1
Tuesday100.0*Average seed
Starship Troubas 196.35 Dumpster Fire B 171.1 +0.9
Surpsu's Team 202.75 DreDay084's Team 142.85 -0.2
Why Not Zoidtte 172.25 What's the Yams? 251.8 -0.1
Kovalchuck Me O 177.9 MackLoud's Team 103.65 -0.1
Games Above .500
Chance Will Make Playoffs