Andrea Arnaboldi defeated Timo Nieminen 7-6 4-6 7-6 in the Mexico F13 round of 16 on hard. The upset overturned the form book — Timo Nieminen came in leading the head-to-head 1–0. Andrea Arnaboldi claimed a first win over Timo Nieminen in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2004-10-04 | Mexico F12 | R16 | hard | Timo Nieminen | 6-2 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.