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(
0.0%
22.2%
80.0%
41.7% ) = 0.350
SOS2 represents the average of opponents' SOS1.
AVERAGE(
0.458
0.581
0.516
0.434 ) = 0.518
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.500 ) + ( 40% × 0.350 + ( 20% × 0.518 ) = 0.510
( 0.200 ) + ( 0.140 ) + ( 0.104 ) = 0.510