Carsten Ball defeated Christopher Lam 6-2 7-6 in the USA F28 semi-final on hard. The upset overturned the form book — Christopher Lam came in leading the head-to-head 2–0, but Carsten Ball had been the form player, winning 1 of their last 5 on hard. Carsten Ball claimed a first win over Christopher Lam in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-05-07 | USA F10 | R16 | clay | Christopher Lam | 6-2 6-3 |
| 2005-09-26 | USA F24 | R32 | hard | Christopher Lam | 6-3 3-6 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.