Jan Weinzierl defeated Lucas Engel 6-0 6-4 in the Brazil F8 round of 16 on clay. The upset overturned the form book — Lucas Engel came in leading the head-to-head 1–0. Jan Weinzierl claimed a first win over Lucas Engel in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-07-05 | Germany F10 | R32 | clay | Lucas Engel | 6-2 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.