Florian Mayer defeated Matias Oneille 7-6 6-3 in the Italy 4 3 round of 32 on clay. The upset overturned the form book — Matias Oneille came in leading the head-to-head 1–0. Florian Mayer claimed a first win over Matias Oneille in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2002-06-24 | Italy 4 2 | R16 | clay | Matias Oneille | 7-5 3-6 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.