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(
66.7%
38.5%
40.0%
19.2% ) = 0.411
SOS2 represents the average of opponents' SOS1.
AVERAGE(
0.486
0.479
0.526
0.561 ) = 0.513
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.250 ) + ( 40% × 0.411 + ( 20% × 0.513 ) = 0.367
( 0.100 ) + ( 0.164 ) + ( 0.103 ) = 0.367