Jose De Armas defeated Mariano Sanchez 6-4 6-4 in the Mexico F4 semi-final on hard. The upset overturned the form book — Mariano Sanchez came in leading the head-to-head 1–0. Jose De Armas claimed a first win over Mariano Sanchez in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2000-07-21 | Davis Cup G2 F: MEX vs VEN | RR | hard | Mariano Sanchez | 6-0 3-6 6-2 |