Juan Martin del Potro defeated Guillaume Legat 6-4 4-6 6-2 in the Mexico F1 round of 16 on hard. The upset overturned the form book — Guillaume Legat came in leading the head-to-head 1–0. Juan Martin del Potro claimed a first win over Guillaume Legat in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2005-02-07 | Mexico F2 | QF | hard | Guillaume Legat | 6-1 6-1 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.