Jaime Oncins defeated Francisco Clavet 6-3 6-2 in the Santiago round of 32 on clay. The upset overturned the form book — Francisco Clavet came in defending last year's final. Jaime Oncins extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1992-04-13 | Nice | R32 | clay | Francisco Clavet | 6-4 2-6 6-1 |
| 1991-11-04 | Sao Paulo | SF | clay | Jaime Oncins | 6-4 6-3 |
Averages over each player's completed matches in the selected window (10 vs 200). 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