Bradley Klahn defeated Tigran Martirosyan 6-3 3-6 7-6 in the USA F16 round of 32 on clay. The upset overturned the form book — Tigran Martirosyan came in leading the head-to-head 1–0. Bradley Klahn claimed a first win over Tigran Martirosyan in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-06-29 | USA F15 | QF | clay | Tigran Martirosyan | 6-3 4-6 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.