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(
22.2%
46.7%
40.9%
66.7%
69.2%
33.3%
70.6%
90.9%
80.0% ) = 0.578
SOS2 represents the average of opponents' SOS1.
AVERAGE(
0.443
0.506
0.381
0.429
0.470
0.597
0.519
0.240
0.235 ) = 0.424
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.556 ) + ( 40% × 0.578 + ( 20% × 0.424 ) = 0.538
( 0.222 ) + ( 0.231 ) + ( 0.085 ) = 0.538