Brian Dabul defeated Diego Hartfield 6-4 6-1 in the Brazil F1 qualifying round on clay. The upset overturned the form book — Diego Hartfield came in leading the head-to-head 3–2. Brian Dabul narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-09-27 | Bolivia F2 | R16 | clay | Brian Dabul | 2-6 6-2 6-1 |
| 2004-06-14 | France F8 | R32 | clay | Brian Dabul | 6-1 6-1 |
| 2003-10-06 | Chile F5 | F | clay | Diego Hartfield | 6-4 6-4 |
| 2002-09-23 | Bolivia F3 | QF | clay | Diego Hartfield | 6-7(2) 6-3 6-0 |
| 2002-08-12 | Brazil F1 | R32 | clay | Diego Hartfield | 6-7(4) 7-5 6-3 |
Averages over each player's completed matches in the selected window (42 vs 42). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About