Colin Sinclair defeated Jake Delaney 6-3 3-6 6-4 in the Guangzhou CH qualifying round 1 on hard. Colin Sinclair extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-04-02 | M15 Kashiwa 1 | R32 | hard | Jake Delaney | 4-6 7-6(0) 7-6(3) |
| 2024-10-08 | M25 Cairns 2 | R32 | hard | Colin Sinclair | 6-3 6-7(7) 6-3 |
Averages over each player's completed matches in the selected window (51 vs 95). ATP, WTA & Challenger.
Sinclair C.: 8 days rest · 3 matches (14d). Higher means fresher. About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About