Hiroko Kuwata defeated Brooke Austin 6-4 6-4 in the Hilton Head Island SC 10K qualifying round on hard. The upset overturned the form book — Brooke Austin came in leading the head-to-head 1–0. Hiroko Kuwata claimed a first win over Brooke Austin in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-05-20 | Sumter SC 10K | SF | hard | Brooke Austin | 6-4 1-6 6-3 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.