Sergi Duran defeated German Puentes 6-2 6-3 in the Spain 2 Masters 2 qualifying round on clay. The upset overturned the form book — German Puentes came in leading the head-to-head 7–1, but Sergi Duran had been the form player, winning 4 of their last 9 on clay. Sergi Duran narrowed the head-to-head to 7–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-10-16 | Spain 8 Masters 2 | SF | clay | German Puentes | 6-2 1-6 6-3 |
| 1998-10-16 | Spain 8 Masters 1 | QF | clay | German Puentes | 6-4 6-4 |
| 1998-02-27 | Spain 3 Masters 2 | R16 | clay | German Puentes | 7-5 7-5 |
| 1998-01-30 | Spain 2 Masters 4 | R16 | clay | German Puentes | 4-6 6-2 6-3 |
| 1998-01-03 | Spain 1 Masters 3 | R16 | clay | German Puentes | 6-4 3-6 6-3 |
| 1995-07-14 | Spain 6 Masters 4 | R16 | clay | Sergi Duran | 6-3 6-3 |
| 1995-03-03 | Spain 3 Masters 2 | R32 | clay | German Puentes | 6-3 6-4 |
| 1993-05-14 | Spain 4 Masters 1 | R32 | clay | German Puentes | 6-3 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.