Victor Sendin defeated Oscar Martinez Dieguez 6-2 7-6 in the Spain 4 Masters 1 round of 16 on clay. Victor Sendin extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-04-09 | Spain 4 Masters 4 | R16 | clay | Victor Sendin | 6-1 6-2 |
| 1998-02-27 | Spain 3 Masters 4 | R32 | clay | Oscar Martinez Dieguez | 4-6 6-4 7-6 |