Pedro Nieto defeated Sergi Duran 6-2 6-3 in the Spain 4 Masters 2 round of 32 on clay. The upset overturned the form book — Sergi Duran came in leading the head-to-head 1–0. Pedro Nieto claimed a first win over Sergi Duran in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-05-08 | Spain 5 Masters 3 | R16 | clay | Sergi Duran | 6-4 4-6 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.