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The NCAA Selection committees examine certain criteria which influence
their decisions in the selection process for the NCAA tournaments. These
criteria may include the following:
(1) Computer ratings
(2) Polls
(3) RPI
(4) Strength of schedule
(5) Quality wins
(6) Losses
(7) Trend
Computer Ratings
The NCAA has their own computer rating. Laxpower's computer rating is
based on goal margins, strength of opponent and game site (home, away
or neutral site).
Polls
The Coaches Poll is used.
RPI
RPI is a rating based on Won-Loss-Ties Records of a team, it's opponents
and it's opponent's opponents.
Strength of Schedule
There are numerous ways for determining strength of schedule. Laxpower uses
the power ratings of a team's opponents and does a weighted average. We take
the average of all opponent's PR and take a power of that sum so that
games against stronger opponents counts more than games against weaker
opponents.
Quality Win Factor
The Quality Win Factor is based on the number of wins against quality
opponent's. A quality opponent is defined as a team which is ranked in
the top 10 by the coaches poll. Every time a team beats a team in the polls,
it receives a quality win. If a team is falls from the polls, then
the quality win by a team that beat that team disappears. Defeating
the number one team is 1.0 quality wins and defeating the 20th team is worth
0.05 quality win points.
Loss Factor
The Loss Factor is simply the sum of all losses by a team.
Trends
Games played later in the season count more than games played earlier
in the season so the number of losses by a team in its last five games
is counted and decreases the chances of a team making the tournament.
Formula
The TSI is equal to the sum of the following:
TSI = – (21 – Poll) + PR ranking + RPI Ranking + SOS Ranking – Quality Wins
+ Losses + Trend (losses in last 5 games)
If the poll contains 25 teams, the first term is then (26 – poll).
If the poll contains 10 teams, the first term is then (11 – poll).
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