Win% represents the percent games played that were won.
Games Won + ( Games Tied × 0.5 ) ) ÷ Games Played = Win%
( 4 + ( 0 × 0.5 ) ) ÷ 10 = 40.0%
SOS1 represents the average of opponents' Win% for each game.
AVERAGE(
0.0%
15.4%
35.7%
16.7%
75.0%
50.0%
81.8%
80.0%
46.2%
91.7% ) = 0.493
SOS2 represents the average of opponents' SOS1.
AVERAGE(
0.513
0.592
0.470
0.502
0.371
0.607
0.302
0.511
0.498
0.519 ) = 0.488
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.400 ) + ( 40% × 0.493 + ( 20% × 0.488 ) = 0.455
( 0.160 ) + ( 0.197 ) + ( 0.098 ) = 0.455