Win% represents the percent games played that were won.
Games Won + ( Games Tied × 0.5 ) ) ÷ Games Played = Win%
( 1 + ( 0 × 0.5 ) ) ÷ 8 = 12.5%
SOS1 represents the average of opponents' Win% for each game.
AVERAGE(
63.6%
40.0%
57.1%
18.2%
71.4%
33.3%
10.0%
33.3% ) = 0.439
SOS2 represents the average of opponents' SOS1.
AVERAGE(
0.565
0.435
0.354
0.501
0.303
0.408
0.439
0.260 ) = 0.429
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.125 ) + ( 40% × 0.439 + ( 20% × 0.429 ) = 0.319
( 0.050 ) + ( 0.176 ) + ( 0.086 ) = 0.319