Wednesday, January 18, 2012

GLIAC Breakdown

As a tempo-free advocate, I've calculated the tempo-free statistics for all of the GLIAC teams using conference-only data. Here's a good reference as to what tempo-free statistics are and why they are incredibly useful over per-game metrics.


TeamOff EffDef EffEff Mar
Ferris State1.110.990.12
Wayne State1.101.020.08
Findlay1.091.020.07
Hillsdale1.081.020.06
Grand Valley State1.041.010.04
Saginaw Valley State1.021.000.02
Michigan Tech1.071.060.01
Northwood1.081.070.01
Ashland1.071.09-0.01
Lake Erie0.970.99-0.02
Lake Superior State1.001.06-0.06
Northern Michigan1.001.07-0.07
Tiffin1.011.10-0.10
Ohio Dominican0.941.08-0.15
Average1.04



Off Eff = Points Scored Per Offensive Possession
Def Eff = Points Allowed Per Defensive Possession
Eff Mar = Difference Between Off Eff and Def Eff


I know that Hillsdale is 9-0 in conference play and has just one loss on the season, however my ratings are based on regressed shooting rates, as well. Because of this, Ferris gets a big boost and Hillsdale comes down due to their very good shooting rates.

Using this, I can generate probabilities of each team winning against a conference opponent. Below are those probabilities.


AwayHomesWinnerProb
SaginawAshlandSaginaw0.472
NorthwoodOhio DominicanNorthwood0.218
Ferris StMichigan TechFerris St.0.305
Grand ValleyNorthern MichiganGrand Valley0.302
Lake StateLake ErieLake Erie0.654
Wayne StateTiffinWayne State0.200
HillsdaleFindlayFindlay0.586


I've used the offensive and defensive efficiency ratings to generate a predicted win percentage. Using these win percentages, I've used the Log5 method to determine the chance of each team winning. I've kicked in a 5% bonus for home court advantage -- that's just my gut feeling on how much it should be; it very well may be higher or lower than that.

Lock of the Night: Wayne State over Tiffin.
Game of the Night: Saginaw Valley at Ashland.

I'll be interested to track Hillsdale's performance for the rest of the GLIAC season to see if their overall record and tempo-free profile start to mesh.

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