Jan Jermar defeated Noah Thurner 7-6 6-2 in the M25 Ystad 1 q16 on clay. The result followed the form book — Jan Jermar came in leading the head-to-head 2–0. Jan Jermar extended the head-to-head to 3–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-10-25 | M25 Portimao 1 | Q32 | hard | Jan Jermar | 6-1 7-5 |
| 2021-05-23 | M25 Most 1 | Q64 | clay | Jan Jermar | 6-1 3-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.