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Tue, 28 Jan 1997 19:43:37 -0700 |
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I've had some private conversations with the folks at
uscollegehockey.com (tim and lee) about how ties are handled.
1. How are ties in individual team comparisons handled?
It appears that the RPI is used as the tie breaker
The interesting case is Dartmouth V mass lowell where
dartmouth won H2H but tied in points (dartmouth got H2H and COP
while lowell got RPI and TUC) and lost the PWR on lower RPI
2. How are teams that won the same number of PWRs ordered in the
ranking?
A) why is new hampshire over vermont
Teams get 2 points each
No head to head
NH wins RPI
NH wins comparison point
B) why is North Dakota over Clarkson
Teams get 2 points each
No head to head
ND wins RPI
ND wins comparison point
C) why is Michigan State over Colorado College
Michigan state wins comparison point 3-2
even though colorado college has higher RPI
D) why is Maine over miami
Maine wins comparison point 2-1
even though miami has higher RPI
E) why are st cloud, bu, princeton, and denver in that order
bu - denver
denver wins comparison point 3-1
no h2h
bu wins RPI point
bu - princeton
princeton wins comparison point 3-1
no h2h
bu wins RPI point
bu - st cloud
st cloud wins comparison point 3-1
no h2h
st cloud wins RPI point
den - princeton
teams get 2 points each
no head to head
princeton wins RPI point
den - st cloud
denver wins comparison point 3-2
denver wins h2h point 1-0
st cloud wins RPI point
prin - st cloud
teams get 2 points each
no head to head
st cloud wins RPI point
It appears that the only criterion used for the ordering for
teams that won the same number of pair wise criteria is the
RPI.
Is that correct? Note I'm not asking if it is equitable, I'm only
asking if that is how the ordering is made by the selection committee.
It seems like the tie breaker for a 2 way tie is who won the
individual comparison, but not for a 4 way tie. Is that true???
charlie shub University of Colorado at Colorado Springs
[log in to unmask] -or- [log in to unmask] -or- [log in to unmask]
http://www.cs.uccs.edu/~cdash
(719) 262-3492 (fax) 262-3369
=================================================
> Date: Mon, 27 Jan 1997 22:35:33 -0600
> From: Lee Urton <[log in to unmask]>
> Subject: Pairwise Rankings (PWR)
> To: INFO
>
> U.S. College Hockey Online Pairwise Rankings (PWR)
> Minneapolis, MN January 27, 1997
>
> Note: The PWR can be reformatted and redistributed by any media outlet or
> person, provided USCHO's URL (http://uscollegehockey.com/) accompanies
> the results.
>
> Rk Team GP W- L- T Win% Rk RPI Rk PWR
> 1 Michigan 26 22- 1- 3 0.9038 1 | 0.6301 1 | 22
> 2 New Hampshire 25 19- 6- 0 0.7600 2 | 0.6103 2 | 20
> 3 Vermont 22 15- 6- 1 0.7045 3 | 0.6005 3 | 20
> 4 Minnesota 26 18- 8- 0 0.6923 5 | 0.5800 5 | 18
> 5 North Dakota 26 17- 7- 2 0.6923 5 | 0.5894 4 | 17
> 6 Clarkson 22 15- 7- 0 0.6818 7 | 0.5762 6 | 17
> 7 Michigan State 24 14- 7- 3 0.6458 9 | 0.5340 15 | 14
> 8 Colorado College 26 15- 9- 2 0.6154 14 | 0.5480 11 | 14
> 9 Cornell 19 10- 5- 4 0.6316 12 | 0.5483 10 | 13
> 10 St Cloud 26 15- 8- 3 0.6346 11 | 0.5591 8 | 12
> 11 Boston University 24 13- 6- 5 0.6458 9 | 0.5556 9 | 12
> 12 Princeton 20 13- 5- 2 0.7000 4 | 0.5443 12 | 12
> 13 Denver 26 14- 8- 4 0.6154 14 | 0.5341 14 | 12
> 14 Maine 24 14- 9- 1 0.6042 17 | 0.5408 13 | 11
> 15 Miami 25 17- 8- 0 0.6800 8 | 0.5613 7 | 11
> 16 Lake Superior 29 16- 9- 4 0.6207 13 | 0.5293 16 | 7
> 17 Rensselaer 22 12- 7- 3 0.6136 16 | 0.5209 18 | 6
> 18 Wisconsin 26 13-12- 1 0.5192 22 | 0.5286 17 | 5
> 19 Colgate 21 11- 9- 1 0.5476 19 | 0.5195 19 | 4
> 20 Minnesota-Duluth 26 14-11- 1 0.5577 18 | 0.5073 21 | 3
> 21 Mass Lowell 25 13-12- 0 0.5200 20 | 0.4984 23 | 2
> 22 Dartmouth 19 9- 9- 1 0.5000 23 | 0.4909 24 | 1
> 23 Bowling Green 25 12-11- 2 0.5200 20 | 0.4863 26 | 0
>
>
> The Pairwise Ranking is the ranking system used the NCAA Selection
> Committee in determining selections for the NCAA hockey tournament. The
> PWR compares all teams at or above .500, judging them by five criteria:
> common opponents, record in last 20 games, head to head meetings, record
> against teams at or above .500, and the Ratings Percentage Index (RPI).
>
> Further details about the computation process can be found at our website.
>
> The current PWR, updated within the hour with current results, can be
> found at http://uscollegehockey.com
>
> INFO-HOCKEY-L is for information only; send any discussion of this
> article to [log in to unmask], The College Hockey Discussion List.
>
charlie shub University of Colorado at Colorado Springs
[log in to unmask] -or- [log in to unmask] -or- [log in to unmask]
http://www.cs.uccs.edu/~cdash
(719) 262-3492 (fax) 262-3369
HOCKEY-L is for discussion of college ice hockey; send information to
[log in to unmask], The College Hockey Information List.
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