Thierry Guardiola defeated Sebastien De Chaunac 7-6 6-4 in the France 1 Masters 1 round of 16 on clay. The upset overturned the form book — Sebastien De Chaunac came in leading the head-to-head 1–0. Thierry Guardiola claimed a first win over Sebastien De Chaunac in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-04-28 | Great Britain F5 | R32 | clay | Sebastien De Chaunac | 6-2 6-7 4-0 |
Averages over each player's completed matches in the selected window (10 vs 32). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About