Valentin Nourrissat defeated Joseph Guillin 6-3 4-6 6-1 in the Belgium F2 qualifying round of 32 on clay. The upset overturned the form book — Joseph Guillin came in leading the head-to-head 1–0. Valentin Nourrissat claimed a first win over Joseph Guillin in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-01-19 | France F2 | Q64 | hard | Joseph Guillin | 6-2 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.