Dong Ju Kim defeated Andrei Cuceu 6-3 6-0 in the M15 Heraklion 8 q64 on hard. The result followed the form book — Dong Ju Kim came in leading the head-to-head 1–0. Dong Ju Kim extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-11-29 | M15 Heraklion 9 | Q32 | hard | Dong Ju Kim | 7-6(7) 2-6 10-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.