Walter Grinovero defeated Leonardo Olguin 7-6 6-3 in the Bolivia F3 round of 16 on clay. The upset overturned the form book — Leonardo Olguin came in leading the head-to-head 1–0. Walter Grinovero claimed a first win over Leonardo Olguin in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1993-04-10 | Argentina 1 Masters 1 | R32 | clay | Leonardo Olguin | 7-5 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.