(in tennis, squash, handball, etc.) two faults in succession, resulting in the loss of the point, the loss of the serve, or both.
Can you win on a double fault?
We know that each WTA double fault affects a player’s chances of winning the match by 1.83%, so compared to an average service performance, Bencic’s excessive service errors cost her about a 17% chance of winning (6.7 times 1.83%), while Petkovic’s stinginess increased her own odds by about 6.6% (2.2 times 1.83%).