Colin Sinclair defeated Unknown Player 6-2 7-5 in the M25 Perth 2 round of 32 on hard. The result followed the form book — Colin Sinclair came in leading the head-to-head 1–0. Colin Sinclair extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-09-18 | M25 Tamworth 2 | R16 | hard | Colin Sinclair | 6-3 7-6(4) |