Win% represents the percent games played that were won.
Games Won + ( Games Tied × 0.5 ) ) ÷ Games Played = Win%
( 8 + ( 0 × 0.5 ) ) ÷ 10 = 80.0%
SOS1 represents the average of opponents' Win% for each game.
AVERAGE(
60.0%
64.3%
64.3%
64.3%
80.0%
80.0%
50.0%
71.4%
14.3%
45.5% ) = 0.638
SOS2 represents the average of opponents' SOS1.
AVERAGE(
0.428
0.509
0.460
0.478
0.486
0.593
0.538
0.629
0.421
0.476 ) = 0.499
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.800 ) + ( 40% × 0.638 + ( 20% × 0.499 ) = 0.641
( 0.320 ) + ( 0.255 ) + ( 0.100 ) = 0.641