Julien Cuaz defeated Konstantin Don Gruber 6-3 0-6 7-6 in the Switzerland 2 2 round of 32 on clay. The upset overturned the form book — Konstantin Don Gruber came in leading the head-to-head 1–0, but Julien Cuaz had been the form player, winning 5 of their last 9 on clay. Julien Cuaz claimed a first win over Konstantin Don Gruber in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2002-08-26 | Switzerland 2 4 | QF | clay | Konstantin Don Gruber | 6-2 4-6 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.