... your opponent retires after missing the very first serve of the match ?
Or if the first point is an overrule and has to be replayed but your opponent has to retire ?
Or if your opponent faints while preparing to serve for the first point ?
When you beat a player, you get bonus points. It depends of your opponent ranking. The higher she is ranked, the more bonus points you get. So for the ranking, other than points for reaching a certain round (2nd, 1/4, final, ...) you also get bonus points at each round for players you beat.
No, I want to know what Bonus Points are! Those are quality points, not bonus points!