Colin Sinclair defeated Oleksii Krutykh 6-1 6-2 in the M15 Antalya 18 round of 32 on clay. The upset overturned the form book — Oleksii Krutykh came in leading the head-to-head 1–0. Colin Sinclair claimed a first win over Oleksii Krutykh in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-04-29 | M15 Antalya 17 | R16 | clay | Oleksii Krutykh | 6-2 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.