Win% represents the percent games played that were won.
Games Won + ( Games Tied × 0.5 ) ) ÷ Games Played = Win%
( 2 + ( 0 × 0.5 ) ) ÷ 9 = 22.2%
SOS1 represents the average of opponents' Win% for each game.
AVERAGE(
55.6%
33.3%
33.3%
70.6%
25.0%
40.9%
90.9%
9.1%
40.0% ) = 0.443
SOS2 represents the average of opponents' SOS1.
AVERAGE(
0.578
0.462
0.314
0.519
0.446
0.381
0.240
0.614
0.492 ) = 0.450
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.222 ) + ( 40% × 0.443 + ( 20% × 0.450 ) = 0.356
( 0.089 ) + ( 0.177 ) + ( 0.090 ) = 0.356