Win% represents the percent games played that were won.
Games Won + ( Games Tied × 0.5 ) ) ÷ Games Played = Win%
( 1 + ( 0 × 0.5 ) ) ÷ 4 = 25.0%
SOS1 represents the average of opponents' Win% for each game.
AVERAGE(
36.4%
70.0%
11.1%
63.6%
72.7%
0.0%
30.0%
36.4% ) = 0.453
SOS2 represents the average of opponents' SOS1.
AVERAGE(
0.479
0.317
0.524
0.378
0.421
0.600
0.616
0.442 ) = 0.425
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.250 ) + ( 40% × 0.453 + ( 20% × 0.425 ) = 0.366
( 0.100 ) + ( 0.181 ) + ( 0.085 ) = 0.366