Guillermo Bujniewicz defeated Roberto Eduardo Ramirez 6-3 6-7 6-2 in the Argentina F4 round of 16 on clay. The result followed the form book — Guillermo Bujniewicz came in leading the head-to-head 1–0. Guillermo Bujniewicz extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-05-31 | Argentina F7 | R32 | clay | Guillermo Bujniewicz | 6-2 6-2 |