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(
0.0%
0.0%
0.0%
20.0%
20.0%
41.7%
75.0%
78.9%
41.7% ) = 0.342
SOS2 represents the average of opponents' SOS1.
AVERAGE(
0.509
0.411
0.503
0.600
0.569
0.580
0.453
0.426
0.315 ) = 0.503
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.250 ) + ( 40% × 0.342 + ( 20% × 0.503 ) = 0.337
( 0.100 ) + ( 0.137 ) + ( 0.101 ) = 0.337