Carlos Martinez Comet defeated Oscar Martinez Dieguez 6-3 6-2 in the Spain 7 Masters 3 round of 32 on clay. The upset overturned the form book — Oscar Martinez Dieguez came in leading the head-to-head 3–2. Carlos Martinez Comet narrowed the head-to-head to 3–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-03-06 | Spain 3 3 | R32 | clay | Oscar Martinez Dieguez | 7-6(7) 6-4 |
| 1999-05-07 | Spain 5 Masters 3 | QF | clay | Oscar Martinez Dieguez | 6-3 6-3 |
| 1999-05-07 | Spain 5 Masters 4 | F | clay | Oscar Martinez Dieguez | 6-1 6-2 |
| 1999-04-09 | Spain 4 Masters 3 | R32 | clay | Carlos Martinez Comet | 6-3 6-2 |
| 1997-05-09 | Spain 4 Masters 3 | R16 | clay | Carlos Martinez Comet | 1-6 6-1 6-2 |