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(
10.0%
14.3%
50.0% ) = 0.242
SOS2 represents the average of opponents' SOS1.
AVERAGE(
0.426
0.528
0.486 ) = 0.480
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.333 ) + ( 40% × 0.242 + ( 20% × 0.480 ) = 0.326
( 0.133 ) + ( 0.097 ) + ( 0.096 ) = 0.326