What about double-faults? I read somewhere that Ivanisevic and Kafelnikov share a record - both made 28 double-faults in one match! Ivanisevic during Compaq Grand Slam Cup and Kafelnikov in Davis Cup. Is it true?
Almost "yes", you probably read this on my webpage
But it was inversely - Ivanisevic (Davis Cup '95 vs. Paes), Kafelnikov (CGSC '96 vs. Ivanisevic).
27 double faults in each example. These matches were "the best of five". Probably record holder "the best of three" is Coria who served 23 DF in winning match (!) against Kiefer 6-7 6-4 6-3.