Win% represents the percent games played that were won.
Games Won + ( Games Tied × 0.5 ) ) ÷ Games Played = Win%
( 2 + ( 0 × 0.5 ) ) ÷ 5 = 40.0%
SOS1 represents the average of opponents' Win% for each game.
AVERAGE(
0.0%
85.7%
100.0%
71.4%
80.0% ) = 0.674
SOS2 represents the average of opponents' SOS1.
AVERAGE(
0.721
0.478
0.367
0.443
0.280 ) = 0.458
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.400 ) + ( 40% × 0.674 + ( 20% × 0.458 ) = 0.521
( 0.160 ) + ( 0.270 ) + ( 0.092 ) = 0.521