Win% represents the percent games played that were won.
Games Won + ( Games Tied × 0.5 ) ) ÷ Games Played = Win%
( 5 + ( 0 × 0.5 ) ) ÷ 9 = 55.6%
SOS1 represents the average of opponents' Win% for each game.
AVERAGE(
0.0%
72.7%
40.0%
0.0%
66.7%
55.6%
40.0%
57.1%
85.7% ) = 0.464
SOS2 represents the average of opponents' SOS1.
AVERAGE(
0.577
0.429
0.607
0.556
0.645
0.558
0.607
0.402
0.660 ) = 0.560
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.556 ) + ( 40% × 0.464 + ( 20% × 0.560 ) = 0.520
( 0.222 ) + ( 0.186 ) + ( 0.112 ) = 0.520