Matthias Wellermann defeated Tobias Kamke 4-6 6-3 6-2 in the Germany F10 round of 16 on clay. The upset overturned the form book — Tobias Kamke came in leading the head-to-head 1–0, but Matthias Wellermann had been the form player, winning 3 of their last 7 on clay. Matthias Wellermann claimed a first win over Tobias Kamke in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-07-19 | Germany F12 | R32 | clay | Tobias Kamke | 6-4 2-6 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.