Stadium: Court 1 Round: 25 Ground: Clay
| ITF M25 The Hague | 2021/06/28 10:05 | Mick Veldheer v Sidane Pontjodikromo | 5-7,3-6 |
| ITF M25 The Hague | 2021/06/27 08:00 | Mick Veldheer v Jarno Jans | 6-4,6-1 |
| ITF M25 Klosters | 2021/06/25 08:55 | Dominic Stephan Stricker v Mick Veldheer | 6-2,6-0 |
| ITF M25 Klosters | 2021/06/24 06:55 | Mick Veldheer v Sandro Ehrat | 6-3,5-7,6-3 |
| ITF M25 Klosters | 2021/06/22 09:45 | Mick Veldheer v Damien Wenger | 1-6,6-2,6-4 |
| ITF M15 Antalya | 2021/05/19 08:50 | Davide Galoppini v Mick Veldheer | 7-5,7-5 |
| ITF M15 Antalya | 2021/05/13 07:00 | Nick Hardt v Mick Veldheer | 6-1,6-1 |
| ITF M15 Antalya | 2021/05/11 08:25 | Mick Veldheer v Sergey Fomin | 6-7,6-2,6-1 |
| ITF M15 Poprad | 2021/07/07 08:00 | Alibek Kachmazov v Ignacio Monzon | 1-6,1-6 |
| ITF M25 Wroclaw | 2021/06/29 08:00 | Alibek Kachmazov v Petr Michnev | 6-4,3-6,7-10 |
| ITF M25 Wroclaw | 2021/06/28 09:30 | Alibek Kachmazov v Olaf Pieczkowski | 6-0,6-1 |
| ITF M25 Wroclaw | 2021/06/27 11:00 | Alibek Kachmazov v Peter Samosi | 6-2,6-1 |
| ITF M15 Monastir | 2021/05/11 09:30 | Santiago Rodriguez Taverna v Alibek Kachmazov | 6-4,3-6,6-3 |
| ITF M15 Monastir | 2021/05/07 08:30 | Alibek Kachmazov v Lucas Catarina | 6-7,2-6 |
| ITF M15 Monastir | 2021/05/06 08:30 | Alibek Kachmazov v Michel Vernier | 6-2,6-1 |
| ITF M15 Monastir | 2021/05/04 13:10 | Mariano Kestelboim v Alibek Kachmazov | 6-1,6-7,3-6 |