Sebastien Lareau defeated Hernan Gumy 2-6 6-4 6-4 4-6 8-6 in the Roland Garros round of 128 on clay. The upset overturned the form book — Hernan Gumy came in leading the head-to-head 1–0. Sebastien Lareau claimed a first win over Hernan Gumy in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-05-03 | Delray Beach | R32 | hard | Hernan Gumy | 6-3 6-2 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (116 vs 123). ATP, WTA & Challenger.