Gregory Zavialoff advanced when Juan Antonio Saiz Panadero retired 6-3 1-0 in the Spain 5 Masters 3 round of 16. Gregory Zavialoff extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-08-16 | Spain F6 | R32 | clay | Juan Antonio Saiz Panadero | 4-6 6-3 6-0 |
| 1998-05-08 | Spain 5 Masters 3 | QF | clay | Gregory Zavialoff | 7-5 7-6 |