Julien Boutter defeated Thomas Thieulot 6-4 6-2 in the France 5 Masters 2 round of 32 on hard. The upset overturned the form book — Thomas Thieulot came in leading the head-to-head 1–0. Julien Boutter claimed a first win over Thomas Thieulot in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-09-08 | France 5 Masters 3 | QF | hard | Thomas Thieulot | 5-7 7-6 7-6 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.