Nicolas Kobelt defeated Jan Sebesta 4-6 6-0 13-11 in the M15 Vaasa 1 q16 on hard. The result followed the form book — Nicolas Kobelt came in leading the head-to-head 1–0. Nicolas Kobelt extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-08-16 | M25 Muttenz 1 | Q32 | clay | Nicolas Kobelt | 6-4 6-2 |