Diego Junqueira defeated Matias Oneille 6-1 6-0 in the Argentina F7 round of 16 on clay. Diego Junqueira extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-08-14 | Argentina F10 | R16 | clay | Diego Junqueira | 6-4 6-2 |
| 1999-10-11 | Paraguay F1 | R16 | clay | Matias Oneille | 3-6 6-1 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.