Win% represents the percent games played that were won.
Games Won + ( Games Tied × 0.5 ) ) ÷ Games Played = Win%
( 0 + ( 1 × 0.5 ) ) ÷ 9 = 5.6%
SOS1 represents the average of opponents' Win% for each game.
AVERAGE(
) = 0.644
SOS2 represents the average of opponents' SOS1.
AVERAGE(
) = 0.515
RPI represents the Ratings Percentage Index
( 40% × Win% ) + ( 40% × SOS1 ) + ( 20% × SOS2 ) = RPI
( 40% × 0.056 ) + ( 40% × 0.644 + ( 20% × 0.515 ) = 0.383
( 0.022 ) + ( 0.258 ) + ( 0.103 ) = 0.383