Diego Cristin defeated Matias Oneille 7-6 6-3 in the Argentina F4 round of 32 on clay. The result followed the form book — Diego Cristin came in leading the head-to-head 1–0. Diego Cristin extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-04-10 | Uruguay F1 | R16 | clay | Diego Cristin | 7-6(2) 7-6(7) |