Every sport has its particular scoring. For more information on other sports, check out the MISC section on our rules page.
For Rivals based on certain statistics, ex. Double faults, in which case the player with the lower score is considered to have had a better performance, the player on the side of the Rival with the lowest score, accounting for potential Rival spreads, will be deemed the winning side.
Breakpoints won - number of games a player wins while their opponent is serving
Service games lost - number of games a player loses while serving
Games won/lost - set tie-breakers won/lost count towards "games won/lost"
For example, if a player wins a match by a score of (7-6, 7-6) then they would be scored as having 14 games won and 12 games lost while their opponent would have 12 games won and 14 games lost.