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Oklahoma Tops the First RPI Release of the 2013 NCAA Division I Softball Season
LOUISVILLE, Ky. – The initial Ratings Percentage Index (RPI) of the 2013 Division I softball season has been released by the NCAA with the Oklahoma Sooners holding down the top position. To view the complete RPI rankings, please click here.
The NCAA develops the RPI to provide its softball selection committee with a resource to utilize when selecting and seeding the annual NCAA Tournament field of 64. The RPI will now be released each week for the remainder of the regular season.
Currently at the No. 1 position in both major polls, Oklahoma (28-2) led the way in the initial RPI in the top spot, followed by Florida (31-3), California (26-3), LSU (27-6) and Missouri (17-2).
Overall, the Southeastern Conference currently boasts six of the top nine teams in the RPI and seven of the Top 25. The Pacific-12 Conference is next with six members of the top 25, while the Big Ten has four, the Big 12 and the Atlantic Coast Conferences possess two each and the BIG EAST, the Sun Belt, the Big West and Conference USA each own a single listed squad.
When determining each team’s RPI, the following basic formula is utilized:
25% -- Winning Percentage
50% -- Opponents’ Winning Percentage
25% -- Opponents’ Opponents Winning Percentage
Although the NCAA publishes this basic formula, the organization doesn’t release the mathematical bonus and penalty calculations (such as a bonus for a win against a top-25 team).