Win% represents the percent games played that were won.
Games Won + ( Games Tied × 0.5 ) ) ÷ Games Played = Win%
( 3 + ( 0 × 0.5 ) ) ÷ 8 = 37.5%
SOS1 represents the average of opponents' Win% for each game.
AVERAGE(
72.7%
25.0%
72.7%
57.1%
70.0%
78.6%
72.7%
63.6% ) = 0.603
SOS2 represents the average of opponents' SOS1.
AVERAGE(
0.496
0.530
0.438
0.441
0.445
0.711
0.438
0.385 ) = 0.470
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.375 ) + ( 40% × 0.603 + ( 20% × 0.470 ) = 0.575
( 0.150 ) + ( 0.241 ) + ( 0.094 ) = 0.575