Miguel Gallardo Valles defeated Lesley Joseph 6-3 7-6 in the USA F29 round of 16 on hard. The upset overturned the form book — Lesley Joseph came in leading the head-to-head 2–0. Miguel Gallardo Valles claimed a first win over Lesley Joseph in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-01-17 | Guatemala F1 | QF | hard | Lesley Joseph | 3-6 6-2 7-5 |
| 2004-02-16 | USA F4 | R32 | hard | Lesley Joseph | 7-6(5) 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.