Win% represents the percent games played that were won.
Games Won + ( Games Tied × 0.5 ) ) ÷ Games Played = Win%
( 3 + ( 1 × 0.5 ) ) ÷ 7 = 50.0%
SOS1 represents the average of opponents' Win% for each game.
AVERAGE(
80.0%
50.0%
83.3%
0.0%
75.0%
50.0%
50.0%
50.0% ) = 0.555
SOS2 represents the average of opponents' SOS1.
AVERAGE(
0.250
0.322
0.518
0.373
0.500
0.350
0.433
0.620 ) = 0.419
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.500 ) + ( 40% × 0.555 + ( 20% × 0.419 ) = 0.506
( 0.200 ) + ( 0.222 ) + ( 0.084 ) = 0.506