Win% represents the percent games played that were won.
Games Won + ( Games Tied × 0.5 ) ) ÷ Games Played = Win%
( 3 + ( 0 × 0.5 ) ) ÷ 9 = 33.3%
SOS1 represents the average of opponents' Win% for each game.
AVERAGE(
33.3%
20.0%
30.0%
0.0%
61.5%
42.3%
72.7%
37.5%
25.0% ) = 0.377
SOS2 represents the average of opponents' SOS1.
AVERAGE(
0.589
0.488
0.307
0.663
0.607
0.554
0.496
0.577
0.428 ) = 0.529
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.333 ) + ( 40% × 0.377 + ( 20% × 0.529 ) = 0.371
( 0.133 ) + ( 0.151 ) + ( 0.106 ) = 0.371