Stadium: Court 2 Round: 54 Ground: Hardcourt indoor
| ITF - M15 Poitiers | 2021/03/17 09:00 | Veldheer, Mick v Breysach , Martin | 1-6,6-4,6-7 |
| ITF - M15 Antalya | 2021/02/24 11:25 | Zukas, Matias v Veldheer, Mick | 6-4,6-1 |
| ITF - M15 Antalya | 2021/02/16 07:00 | David Pichler v Veldheer, Mick | 6-2,6-2 |
| ITF - M15 Antalya | 2021/02/12 10:30 | Federico Arnaboldi v Veldheer, Mick | 6-3,7-6 |
| ITF - M15 Antalya | 2021/02/11 06:55 | Veldheer, Mick v Hamad Medjedovic | 7-5,6-3 |
| ITF - M15 Antalya | 2021/02/10 09:40 | Veldheer, Mick v Oleg Prihodko | 6-3,4-6,6-2 |
| ITF - M15 Torello | 2020/12/08 10:00 | Veldheer, Mick v Lluc Mir Anglada | 4-6,6-2,3-6 |
| ITF - M15 Héraklion | 2020/11/25 11:35 | Patten, Henry v Veldheer, Mick | 6-4,6-4 |
| ITF - M25 Trimbach | 2021/03/10 12:30 | Jan Sebesta v Antoine Bellier | 2-6,1-6 |
| ITF - M25 Trimbach | 2021/03/09 08:55 | Giovanni Agostinetto v Jan Sebesta | 4-6,2-6 |
| ITF - M25 Trimbach | 2021/03/08 15:35 | Wolfschmidt, Alexander v Jan Sebesta | 2-6,4-6 |
| ITF - M15 Antalya | 2021/02/21 13:00 | Madaras, Dragos Nicolae v Jan Sebesta | 6-1,6-3 |
| ITF - M15 Antalya | 2021/01/07 09:00 | Galoppini, Davide v Jan Sebesta | 6-4,6-4 |
| ITF - M15 Antalya | 2021/01/06 07:30 | Daniil Savelev v Jan Sebesta | 5-7,2-6 |
| ITF - M15 Antalya | 2021/01/04 07:00 | Jan Sebesta v Terziev, Simeon | 6-3,7-6 |
| ITF - M15 Antalya | 2021/01/03 07:00 | Dmitrii Vasilev v Jan Sebesta | 6-7,3-6 |