Jan Abaza defeated Chieh Yu Hsu 6-2 6-1 in the Sumter SC $25K round of 16 on hard. The upset overturned the form book — Chieh Yu Hsu came in leading the head-to-head 1–0, but Jan Abaza had been the form player, winning 2 of their last 6 on hard. Jan Abaza claimed a first win over Chieh Yu Hsu in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-09-17 | Albuquerque NM 75K | R32 | hard | Chieh Yu Hsu | 7-6(4) 3-6 7-6(5) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.