Daniel Willman defeated Chad Carlson 6-3 6-3 in the USA F21 qualifying round on hard. The upset overturned the form book — Chad Carlson came in leading the head-to-head 1–0. Daniel Willman claimed a first win over Chad Carlson in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2001-11-12 | USA F26 | F | hard | Chad Carlson | 7-5 7-6(6) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.