Fredrik Giers defeated Matthew Breen 6-4 7-6 in the USA 2 Masters 4 qualifying round on hard. The upset overturned the form book — Matthew Breen came in leading the head-to-head 1–0, but Fredrik Giers had been the form player, winning 2 of their last 5 on hard. Fredrik Giers claimed a first win over Matthew Breen in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-09-10 | USA 2 Masters 2 | R16 | hard | Matthew Breen | 6-2 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.