Win% represents the percent games played that were won.
Games Won + ( Games Tied × 0.5 ) ) ÷ Games Played = Win%
( 2 + ( 0 × 0.5 ) ) ÷ 4 = 50.0%
SOS1 represents the average of opponents' Win% for each game.
AVERAGE(
42.9%
40.0%
85.7%
75.0% ) = 0.609
SOS2 represents the average of opponents' SOS1.
AVERAGE(
0.530
0.350
0.393
0.489 ) = 0.440
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.500 ) + ( 40% × 0.609 + ( 20% × 0.440 ) = 0.532
( 0.200 ) + ( 0.244 ) + ( 0.088 ) = 0.532