See Strength of Schedule for an explanation. There are three sos calculations:
the 1st averages the opponents computer rating based on
 computer margin of victory "Reg In" and "ROM", the 2nd
 is similar to the first but instead of a simple average, it
 weighs games against stronger teams more heavily, and
 the 3rd is based on the RPI SOS formula used by the NCAA. This factor is not used in the power rating calculation
 and uses only the top ten (rpi based) teams.
          
      
   
     
   
           
           

Use the Report Scores link for both scores and missing games.
     
  
  
   
Rank Team                    Total  SOS Ave   SOS Wt Ave  SOS RPI    W  L  T
                             Games Rnk Value  Rnk Value  Rnk Value
 
   1 Arrowhead                 20   1  54.46   1  22.63   3   0.53  15  4  0
   2 Brookfield, WI            16   2  53.27   2  21.00   1   0.59   6  5  0
   3 LaFollette                12   3  53.21   3  20.73  12   0.48   0 10  0
   4 Kettle Moraine            14   4  52.72   4  20.51   6   0.50   2 10  0
   5 Verona, WI                12   5  52.62   7  20.25   2   0.55   6  4  0
   6 Arrowhead Club            18   6  52.62   5  20.50   7   0.50   7  8  0
   7 Oconomowoc                14   7  52.54   6  20.40   5   0.50   2  8  0
   8 Madison West, WI          14   8  52.15   8  19.81   4   0.53   6  6  0
   9 Waukesha West             14   9  51.96   9  19.70  15   0.45   1 11  0
  10 Oregon                    13  10  51.93  10  19.66  10   0.49   2  9  0
  11 Middleton, WI             12  11  51.55  11  19.29   9   0.49   8  4  0
  12 Sun Prairie               13  12  51.38  13  19.14  13   0.48   5  6  0
  13 Mukwonago                 14  13  51.33  12  19.26  14   0.48   7  6  0
  14 Waunakee                  12  14  51.07  15  18.82  11   0.49  10  1  0
  15 University HS, WI         14  15  51.04  14  18.97   8   0.49  10  3  0