Nicolas Dubey defeated Stefan Kilchhofer 4-6 6-2 7-6 in the Switzerland 2 4 round of 16 on clay. The upset overturned the form book — Stefan Kilchhofer came in leading the head-to-head 1–0. Nicolas Dubey claimed a first win over Stefan Kilchhofer in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2003-08-25 | Switzerland 2 4 | R32 | clay | Stefan Kilchhofer | 7-5 7-6(4) |