Career
Her peak world rankings in the sport were 17th in singles (in 1983) and 16th in doubles (1988). At the 1983 Canadian Open, Pfaff held match points against Martina Navratilova in the round of 16, but lost 7–6 in the third set. She was the only player to have match points against Navratilova that year outside of Martina"s loss at the French Open to Kathy Horvath.
Grand Slam finals
= Women"s doubles: 1 (0 titles, 1 runner–up) Year-End Championships finals
= Doubles: 1 final (0 titles, 1 runner–up)
Singles: 3 (1–2)
Doubles 19: (9–10)
New Hampshire = tournament not held.
A = did not participate in the tournament.