Carlos Castellanos defeated Quino Munoz 5-4 2-4 4-1 1-4 5-4 in the Spain F8 round of 16 on clay. The upset overturned the form book — Quino Munoz came in leading the head-to-head 3–0. Carlos Castellanos claimed a first win over Quino Munoz in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-01-10 | Spain 1 3 | R32 | clay | Quino Munoz | 3-6 6-3 6-1 |
| 1999-10-15 | Spain 7 Masters 2 | R16 | clay | Quino Munoz | 6-2 6-3 |
| 1999-10-15 | Spain 7 Masters 3 | QF | clay | Quino Munoz | 6-2 7-5 |