Christer Allgardh defeated Alberto Berasategui 6-4 3-6 7-6 in the Spain 1 Masters 3 qualifying round on carpet. The upset overturned the form book — Alberto Berasategui came in leading the head-to-head 1–0. Christer Allgardh claimed a first win over Alberto Berasategui in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1992-02-03 | Spain 1 Masters 1 | SF | carpet | Alberto Berasategui | 6-4 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.