Constantin Belot defeated Gary Lugassy 6-1 6-3 in the France F3 qualifying round of 16 on hard. The upset overturned the form book — Gary Lugassy came in leading the head-to-head 1–0. Constantin Belot claimed a first win over Gary Lugassy in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-10-12 | France F18 | R32 | hard | Gary Lugassy | 6-2 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.