Damian Furmanski defeated Leonardo Olguin 6-3 6-3 in the Argentina 3 Masters 1 round of 32 on clay. The upset overturned the form book — Leonardo Olguin came in leading the head-to-head 2–0. Damian Furmanski claimed a first win over Leonardo Olguin in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1997-09-06 | Bolivia Paraguay Masters 3 | QF | clay | Leonardo Olguin | 6-3 6-4 |
| 1996-09-28 | Argentina 3 Masters 4 | R16 | clay | Leonardo Olguin | 6-1 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.