Thierry Grin defeated Milen Velev 6-3 7-5 in the Germany 1 Masters 2 round of 32 on carpet. The upset overturned the form book — Milen Velev came in leading the head-to-head 1–0. Thierry Grin claimed a first win over Milen Velev in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1992-05-25 | Germany 3 Masters 2 | R32 | clay | Milen Velev | 6-1 7-6 |