Ranking Systems for D1 College Hockey (2019-2020)
Comparison Between Rankings
The following table lists the 60 teams eligible for the NCAA
Division I Men's Ice Hockey Tournament.
- Record
-
A team's winning percentage (Pct) is calculating by adding its
wins to half its ties and dividing by the total number of
games played. I.e., a tie counts as a half a win and half a
loss, which is true for all the rating systems considered
here.
- RPI
-
The Ratings Percentage Index, a linear combination of a team's
winning percentage (25%) with the winning percentages of their
opponents (21%) and their opponents' opponents (54%), which is
the most important of the NCAA's selection criteria. More
information can be found on our RPI
page. Note the value in our table includes the "bad wins"
fudge but not the secret "quality wins" bonus. To calculate
the ratings using a chosen value of the bonus, go to our Do-it-yourself ratings
calculator.
- KRACH
-
Ken's Rating for American College Hockey is an application of
the Bradley-Terry method to college hockey; a team's rating is
meant to indicate its relative strength on a multiplicative
scale, so that the ratio of two teams' ratings gives the odds
of each of them winning a game between them. The ratings are
chosen so that the expected winning percentage for each team
based on its schedule is equal to its actual winning
percentage. The Round-Robin Winning Percentage (RRWP) is the
winning percentage a team would be expected to accumulate if
they played each other team an equal number of times. More
information can be found on our KRACH
page.
- PWR
-
The PairWise Rating is determined by performing PairWise
Comparisons (PWC) according to the NCAA's selection criteria
between all teams with RPI's at or above .500
and totalling the number of comparisons each team wins. More
information, including a breakdown of comparisons won and lost
according to criteria, can be found on our PWC/PWR page.
See also