Jack Schipanski defeated James Lemke 6-2 2-6 6-1 in the Australia F10 round of 16 on hard. The upset overturned the form book — James Lemke came in leading the head-to-head 2–0. Jack Schipanski claimed a first win over James Lemke in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-09-17 | Australia F8 | R32 | hard | James Lemke | 6-4 6-2 |
| 2012-09-10 | Australia F7 | R16 | hard | James Lemke | 6-3 3-6 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.