Ivan Cerovic defeated Clinton Thomson 6-2 4-6 6-1 in the Luxembourg F1 qualifying round on clay. The upset overturned the form book — Clinton Thomson came in leading the head-to-head 1–0. Ivan Cerovic claimed a first win over Clinton Thomson in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-03-09 | Switzerland F2 | R32 | carpet | Clinton Thomson | 7-6(5) 7-6(8) |