I don't know which planet I was on when I posted my RPICH introduction earlier today, but it clearly wasn't Earth. The formula for Winning Percentage was not close to being right. Here is the introduction again, incorporating the correction. Anyone know where I can hire a proofreader??? 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 + ties) / games*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! [log in to unmask] / [log in to unmask] / [log in to unmask]