Miguel Gallardo Valles defeated Lionel Noviski 1-6 6-3 6-1 in the Bolivia F2 round of 32 on clay. The upset overturned the form book — Lionel Noviski came in leading the head-to-head 1–0. Miguel Gallardo Valles claimed a first win over Lionel Noviski in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-01-12 | El Salvador F1 | R16 | clay | Lionel Noviski | 7-5 4-6 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.