Win% represents the percent games played that were won.
Games Won + ( Games Tied × 0.5 ) ) ÷ Games Played = Win%
( 0 + ( 1 × 0.5 ) ) ÷ 3 = 16.7%
SOS1 represents the average of opponents' Win% for each game.
AVERAGE(
43.8%
90.0%
66.7% ) = 0.668
SOS2 represents the average of opponents' SOS1.
AVERAGE(
0.494
0.375
0.429 ) = 0.433
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.167 ) + ( 40% × 0.668 + ( 20% × 0.433 ) = 0.421
( 0.067 ) + ( 0.267 ) + ( 0.087 ) = 0.421