Win% represents the percent games played that were won.
Games Won + ( Games Tied × 0.5 ) ) ÷ Games Played = Win%
( 4 + ( 1 × 0.5 ) ) ÷ 5 = 90.0%
SOS1 represents the average of opponents' Win% for each game.
AVERAGE(
50.0%
50.0%
20.0%
0.0%
50.0%
0.0%
50.0% ) = 0.340
SOS2 represents the average of opponents' SOS1.
AVERAGE(
0.433
0.400
0.547
0.647
0.322
0.714
0.539 ) = 0.513
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.900 ) + ( 40% × 0.340 + ( 20% × 0.513 ) = 0.599
( 0.360 ) + ( 0.136 ) + ( 0.103 ) = 0.599