Bianca Acquistapace defeated Lauren Barnikow 6-4 6-1 in the St Joseph MD 10K round of 16 on hard. The upset overturned the form book — Lauren Barnikow came in leading the head-to-head 1–0. Bianca Acquistapace claimed a first win over Lauren Barnikow in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2006-02-06 | Wellington 10K | R16 | hard | Lauren Barnikow | 7-6(2) 6-4 |