Mark Nielsen defeated Will Farah Lebar 6-2 6-1 in the USA F24 round of 16 on hard. The upset overturned the form book — Will Farah Lebar came in leading the head-to-head 1–0, but Mark Nielsen had been the form player, winning 2 of their last 4 on hard. Mark Nielsen claimed a first win over Will Farah Lebar in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-10-15 | USA F22 | R32 | hard | Will Farah Lebar | 6-3 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.