Hugo Armando defeated Keith Brill 6-3 2-6 6-4 in the Central America Masters 4 round of 16 on clay. The upset overturned the form book — Keith Brill came in leading the head-to-head 1–0, but Hugo Armando had been the form player, winning 2 of their last 4 on clay. Hugo Armando claimed a first win over Keith Brill in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1998-05-18 | USA F2 | R64 | clay | Keith Brill | 6-2 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.