Pier Gauthier defeated Serge Soulie 6-2 6-4 in the France 1 Masters 4 round of 16 on carpet. The upset overturned the form book — Serge Soulie came in leading the head-to-head 1–0. Pier Gauthier claimed a first win over Serge Soulie in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1990-12-31 | Italy 1 Masters 3 | R16 | carpet | Serge Soulie | 4-6 6-1 3-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.