Rodolfo Daruich defeated Diego Hartfield 7-6 6-2 in the Argentina F1 qualifying round on clay. The upset overturned the form book — Diego Hartfield came in leading the head-to-head 2–0. Rodolfo Daruich claimed a first win over Diego Hartfield in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-05-09 | Argentina F5 | F | clay | Diego Hartfield | 6-7(4) 6-1 6-4 |
| 2000-09-25 | Bolivia F2 | R32 | clay | Diego Hartfield | 6-3 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.