Matias Oneille defeated Diego Bracco 7-5 6-7 6-0 in the Chile F9 round of 16 on clay. The upset overturned the form book — Diego Bracco came in leading the head-to-head 1–0, but Matias Oneille had been the form player, winning 5 of their last 10 on clay. Matias Oneille claimed a first win over Diego Bracco in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-08-07 | Agentina F9 | R32 | clay | Diego Bracco | 4-2 0-4 4-1 4-1 |