Win% represents the percent games played that were won.
Games Won + ( Games Tied × 0.5 ) ) ÷ Games Played = Win%
( 1 + ( 0 × 0.5 ) ) ÷ 3 = 33.3%
SOS1 represents the average of opponents' Win% for each game.
AVERAGE(
33.3%
14.3%
53.8% ) = 0.338
SOS2 represents the average of opponents' SOS1.
AVERAGE(
0.376
0.355
0.477 ) = 0.403
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.333 ) + ( 40% × 0.338 + ( 20% × 0.403 ) = 0.349
( 0.133 ) + ( 0.135 ) + ( 0.081 ) = 0.349