Sebastian Decoud advanced when Mariano Delfino retired 6-4 1-1 in the Argentina F11 round of 32. Sebastian Decoud narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-04-10 | Uruguay F1 | QF | clay | Sebastian Decoud | 6-1 6-1 |
| 2001-03-19 | Argentina F2 | QF | clay | Mariano Delfino | 7-6(3) 6-2 |
| 2000-03-27 | Argentina F3 | R32 | clay | Mariano Delfino | 6-1 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.