Alberto Berasategui defeated Younes El Aynaoui 4-6 6-0 6-3 in the Sao Paulo quarter-final on clay. The upset overturned the form book — Younes El Aynaoui came in leading the head-to-head 1–0. Alberto Berasategui claimed a first win over Younes El Aynaoui in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-11-09 | Santiago | R16 | clay | Younes El Aynaoui | 7-6 6-1 |
Averages over each player's completed matches in the selected window (173 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