Robin Anderson defeated Alexandra Mueller 6-3 3-6 6-3 in the Landisville PA $25K qualifying round on hard. The upset overturned the form book — Alexandra Mueller came in leading the head-to-head 2–0. Robin Anderson claimed a first win over Alexandra Mueller in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-07-18 | Lexington KY 50K | R32 | hard | Alexandra Mueller | 6-4 6-4 |
| 2009-05-18 | Landisville PA 10K | R32 | hard | Alexandra Mueller | 6-2 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.