| Czechia Extraliga | 2020/12/12 09:00 | Dalibor Svrcina v Dominik Kellovsky | 7-6,6-3 |
| ITF M15 Heraklion | 2020/11/02 09:30 | Calvin Hemery v Dominik Kellovsky | 6-0,6-3 |
| ITF M15 Heraklion | 2020/11/01 08:30 | Lodewijk Weststrate v Dominik Kellovsky | 3-6,6-3,15-17 |
| ITF M25 Jablonec Nad Nisou | 2020/09/21 09:00 | Dominik Kellovsky v Ryan Nijboer | 5-7,7-6,6-10 |
| ITF M25 Jablonec Nad Nisou | 2020/09/20 09:00 | Jiri Barnat v Dominik Kellovsky | 5-7,3-6 |
| ITF M25 Prague | 2020/09/15 09:35 | Pawel Juszczak v Dominik Kellovsky | 6-1,6-2 |
| ITF M25 Prague | 2020/09/14 09:00 | Dominik Kellovsky v Johan Nikles | 6-4,6-3 |
| ITF M25 Prague | 2020/09/13 10:30 | Daniel Paty v Dominik Kellovsky | 4-6,3-6 |
| ITF M15 Antalya | 2021/04/19 09:00 | Luis Faria v Michalis Sakellaridis | 6-2,6-2 |
| ITF M15 Antalya | 2021/04/18 07:00 | Michalis Sakellaridis v Denis Parshutin | 3-6,7-5,10-7 |
| ITF M15 Antalya | 2021/04/11 07:00 | Federico Arnaboldi v Michalis Sakellaridis | 6-3,6-1 |
| ITF M15 Antalya | 2021/04/06 07:00 | Lazar Vojinovic v Michalis Sakellaridis | 1-6,7-6,10-8 |
| ITF M15 Antalya | 2021/04/05 07:00 | Michalis Sakellaridis v Marco De Rossi | 6-3,3-6,10-5 |
| ITF M15 Antalya | 2021/04/04 06:30 | Michalis Sakellaridis v Adil Karimov | 6-1,6-1 |
| ITF M15 Antalya | 2021/03/28 06:30 | Michalis Sakellaridis v Diego A B Sanchez | 6-7,2-6 |
| ITF M15 Antalya | 2021/03/21 07:00 | Michalis Sakellaridis v Valentin Vanta | 5-7,6-4,7-10 |