Gilbert Schaller defeated Carlos Costa 4-6 6-2 6-0 in the Umag round of 16 on clay. The upset overturned the form book — Carlos Costa came in leading the head-to-head 1–0, defending last year's final, but Gilbert Schaller had been the form player, winning 2 of their last 5 on clay. Gilbert Schaller claimed a first win over Carlos Costa in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1992-05-25 | Roland Garros | R64 | clay | Carlos Costa | 7-6(7) 6-3 6-2 |
Averages over each player's completed matches in the selected window (33 vs 99). 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