Sergi Duran defeated Jordi Mas 6-7 6-3 6-3 in the Spain 4 Masters 1 round of 16 on clay. The upset overturned the form book — Jordi Mas came in leading the head-to-head 6–1. Sergi Duran narrowed the head-to-head to 6–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-02-27 | Spain 3 Masters 3 | QF | clay | Jordi Mas | 6-3 6-2 |
| 1997-10-17 | Spain 9 Masters 2 | R16 | clay | Jordi Mas | 6-3 6-2 |
| 1997-01-31 | Spain 2 Masters 3 | QF | clay | Jordi Mas | 1-6 6-3 7-5 |
| 1996-11-01 | Spain 9 Masters 1 | R16 | clay | Sergi Duran | 6-1 6-3 |
| 1994-08-12 | Spain 7 Masters 2 | R16 | clay | Jordi Mas | 6-4 6-0 |
| 1994-06-10 | Spain 5 Masters 1 | R16 | clay | Jordi Mas | 6-4 7-6 |
| 1994-05-13 | Spain 4 Masters 2 | R32 | clay | Jordi Mas | 6-1 6-3 |
Averages over each player's completed matches in the selected window (2 vs 2). 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