Chase Buchanan defeated Clinton Thomson 3-6 7-6 6-2 in the USA F9 round of 16 on clay. The upset overturned the form book — Clinton Thomson came in leading the head-to-head 1–0. Chase Buchanan claimed a first win over Clinton Thomson in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2008-05-05 | USA F10 | QF | clay | Clinton Thomson | 4-6 6-1 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.