Yu Chang defeated Ya Nan Ma 6-4 6-2 in the Spain F16 qualifying round on clay. The upset overturned the form book — Ya Nan Ma came in leading the head-to-head 1–0. Yu Chang claimed a first win over Ya Nan Ma in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2009-08-17 | China F7 | R32 | hard | Ya Nan Ma | 4-6 6-1 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.