Ezequiel Velez defeated Kentaro Masuda 6-2 6-7 6-2 in the Spain F1 round of 32 on clay. The upset overturned the form book — Kentaro Masuda came in leading the head-to-head 2–0. Ezequiel Velez claimed a first win over Kentaro Masuda in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2002-07-29 | Spain F8 | QF | clay | Kentaro Masuda | 6-2 |
| 1999-04-09 | Spain 4 Masters 1 | R32 | clay | Kentaro Masuda | 6-2 1-6 6-2 |