Since we are discussing ratings this week, I guess it's time to post the
first RPICH of the season.  RPICH (Rating Percentage Index for College
Hockey) is my implementation of the RPI ratings that have been applied
to college hockey, basketball, and other sports.
 
The recipe isn't a secret.  Calculate the Winning Percentage (WP) of each
team ((wins*2 + losses*2 + ties) / 2).  Now, for each team calculate the
Opponents' Winning Percentage (OWP) by summing the WP of the opponent in
each game (exclusive of games against that team) and dividing by the number
of games.  Calculate the Opponents' Opponents' Winning Percentage (OOWP)
for each team by summing the OWP of the opponent in each game and dividing
by the number of games.  Finally, RPI = (WP*.2) + (OWP*.4) + (OOWP*.4).
 
RPI ratings have been used by Division 1 Ice Hockey Committee as a tool for
producing their weekly poll and seeding the teams in the national tournament.
While RPICH is not and has not been supplied to the Committee, it should be
identical to the official ratings.
 
I am posting the RPICH to the list because I think that fans should be aware
of these numbers, as they apparently have some impact in how teams are seeded
into the tournament.  I specifically invite any members of the Ice Hockey
Committee to comment on this, either to me or to the list.
 
With no further ado, here's the first RPICH of the season:
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 
Rating Percentage Index for College Hockey, compiled by Erik Biever
 
RPICH is an attempt to rate college hockey teams by objective methods.
The formula is that used as one of the tools for evaluating teams for
the national tournaments in college baseball, basketball, and hockey.
RPICH is calculated by summing each team's winning percentage, the
average winning percentage of its opponents, and the average winning
percentage of its opponents' opponents, multiplied by 20%, 40%, and
40% respectively.  Factors such as home ice and margin of victory are
not included.  Only the 206 Division 1 games through 11/30/92 are
included.
 
RPICH IS BASED ON SCORES COMPILED AND CALCULATIONS PERFORMED
INDEPENDENT OF THE NCAA AND ANY AGENTS THEREOF.
                                                 Opp     OppOpp
                         G    W  L  T    Win%    Win%    Win%   RPICH
 1  Maine               10    9- 0- 1   .9500   .5219   .5918   .6355
 2  Michigan            11    7- 2- 2   .7273   .6056   .5045   .5895
 3  Alaska-Fairbanks     9    6- 3- 0   .6667   .5681   .5410   .5770
 4  Miami               12    9- 2- 1   .7917   .5330   .5079   .5747
 5  Minnesota-Duluth    10    7- 3- 0   .7000   .5475   .5130   .5642
 6  Denver              10    7- 2- 1   .7500   .5144   .5197   .5637
 7  Alaska-Anchorage     6    5- 1- 0   .8333   .3792   .6098   .5623
 8  Harvard              7    5- 1- 1   .7857   .5052   .4991   .5589
 9  Boston College      10    3- 4- 3   .4500   .7343   .4165   .5503
10  St Lawrence          8    6- 1- 1   .8125   .4531   .5155   .5500
11  Providence          11    4- 6- 1   .4091   .6755   .4829   .5452
12  Yale                17    4- 2-11   .5588   .5411   .5340   .5418
13  Boston University    8    3- 4- 1   .4375   .6317   .4728   .5293
14  UMass-Lowell        11    8- 3- 0   .7273   .4130   .5461   .5291
15  St Cloud            10    5- 5- 0   .5000   .5375   .5284   .5263
16  Lake Superior        9    6- 1- 2   .7778   .3792   .5399   .5232
17  Western Michigan    11    6- 4- 1   .5909   .4778   .5279   .5205
18  Ferris State         8    2- 4- 2   .3750   .6194   .4903   .5189
19  Wisconsin           12    7- 4- 1   .6250   .4847   .4902   .5150
20  Northeastern         9    6- 3- 0   .6667   .4638   .4809   .5112
21  RPI                  7    3- 2- 2   .5714   .4438   .5482   .5111
22  New Hampshire       10    4- 4- 2   .5000   .4700   .5471   .5068
23  Michigan State      10    6- 3- 1   .6500   .4720   .4564   .5014
24  Vermont             10    5- 4- 1   .5500   .4610   .5103   .4985
25  Brown                7    3- 4- 0   .4286   .5283   .4988   .4965
26  Minnesota           12    5- 3- 4   .5833   .4495   .4999   .4964
27  Clarkson             8    4- 3- 1   .5625   .4069   .5155   .4815
28  North Dakota        12    3- 9- 0   .2500   .5938   .4771   .4784
29  Cornell              5    1- 3- 1   .3000   .5477   .4837   .4725
30  Army                 2    1- 1- 0   .5000   .3194   .6066   .4704
31  Merrimack           10    3- 6- 1   .3500   .5223   .4751   .4690
32  Michigan Tech       12    5- 7- 0   .4167   .4347   .5079   .4604
33  Northern Michigan   12    3- 7- 2   .3333   .5014   .4594   .4510
34  Ohio State          10    2- 7- 1   .2500   .5135   .4599   .4393
35  Princeton            5    2- 3- 0   .4000   .3417   .5467   .4353
36  Kent                10    4- 6- 0   .4000   .3617   .5252   .4348
37  Colorado College    11    3- 8- 0   .2727   .4705   .4730   .4319
38  Bowling Green       13    4- 9- 0   .3077   .4742   .4463   .4297
39  Dartmouth            6    1- 5- 0   .1667   .5136   .4580   .4220
40  Notre Dame          13    1-11- 1   .1154   .5266   .4520   .4145
41  Union                5    1- 4- 0   .2000   .4789   .4454   .4097
42  Air Force            7    1- 5- 1   .2143   .4333   .4687   .4037
43  Colgate              6    0- 6- 0   .0000   .5207   .4646   .3941
44  Illinois-Chicago    10    2- 7- 1   .2500   .3450   .4898   .3839
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Erik Biever                                                    GO GOPHERS!
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