Ratings Percentage Index
From Hoopedia
From NCAASports.com
The Rating Percentage Index (RPI) was created in 1981 to provide supplemental data for the NCAA Division I Men’s Basketball Committee in its evaluation of teams for at-large selection and seeding of the championship bracket.
The RPI is intended to be used as one of many resources available to the committee in the selection, seeding and bracketing process. It never should be considered anything but an additional evaluation tool. Computer models cannot accurately evaluate qualitative factors such as games missed by key players or coaches, travel difficulties, a team’s performance in the last twelve games, the emotional effects of specific games, etc.
Several independent elements are combined to produce the RPI. These elements are a part of the statistical information that may be utilized by each member in an objective manner.
Each committee member independently evaluates a vast pool of information available during the process to develop individual preferences. It is these qualitative, quantitative and subjective opinions -- developed after many hours of personal observations, discussion with coaches, directors of athletics and commissioners, and review and comparison of objective data -- that dictate how each individual ultimately will vote on all issues related to the selection, seeding and bracketing process.
While the various elements of the RPI are important in the evaluation process, the tournament bracket each year is based on the subjectivity of each individual committee member to select the best at-large teams available and to create a nationally balanced championship.
