Adrian Garcia defeated Matias Oneille 6-1 6-0 in the Chile F6 semi-final on clay. The upset overturned the form book — Matias Oneille came in leading the head-to-head 1–0. Adrian Garcia claimed a first win over Matias Oneille in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-09-06 | Peru F2 | R16 | clay | Matias Oneille | 6-0 3-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.