Mitchell Harper defeated Colin Sinclair 3-6 6-2 6-1 in the M15 Caloundra 2 round of 16 on hard. The upset overturned the form book — Colin Sinclair came in leading the head-to-head 1–0. Mitchell Harper claimed a first win over Colin Sinclair in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2022-10-07 | M25 Cairns 1 | QF | hard | Colin Sinclair | 6-4 4-6 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.