Chang Liu defeated Carolina Prats Millan 6-3 6-3 in the Madrid 10K round of 16 on hard. The upset overturned the form book — Carolina Prats Millan came in leading the head-to-head 1–0. Chang Liu claimed a first win over Carolina Prats Millan in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-09-12 | Lleida 10K | R16 | clay | Carolina Prats Millan | 3-6 7-6(4) 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.