Johannes Robert Van Overbeek defeated Tigran Martirosyan 6-3 6-4 in the USA F11 round of 16 on clay. The upset overturned the form book — Tigran Martirosyan came in leading the head-to-head 1–0. Johannes Robert Van Overbeek claimed a first win over Tigran Martirosyan in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-01-26 | USA F3 | R32 | clay | Tigran Martirosyan | 3-6 6-4 7-5 |