How is the RPI calculated?
The RPI was originally calculated as a weighted average of a team’s winning percentage (WP), that team’s opponents’ winning percentage (OWP) and that team’s opponents’ opponents’ winning percentage (OOWP). The WP component only includes games played against other division 1 teams. The ratio is weighted as follows: RPI = (0.25 * WP) + (0.5 * OWP) + (0.25 * OOWP) The formula was changed for the 2004-2005 season to include adjustments to the WP portion that weights home/neutral/road games differently. That formula looks like this: Wins = ((1.4 * road wins) + (neutral wins) + (0.6 * home wins)) Losses = ((1.4 * home losses) + (neutral losses) + (0.6 * road losses)) For example, if a team’s overall record is (22-12) their adjusted win percentage would be calculated as follows: Wins = 17.2 = ((1.4 * 4) + (2) + (0.6 * 16)) Losses = 10.4 = ((1.4 * 2) + (4) + (0.6 * 6)) Adjusted Win Percentage = 0.6232 = Wins / (Wins + Losses) Adjusted RPI = (0.25 * AWP) + (0.5 * OWP) + (0.25 * OOWP) Bracketize
