Stadium: Court 9 Round: 25 Ground: Clay
| ITF M25 - Klosters | 2021/06/23 09:25 | Johan Nikles v Mohamed Aziz Dougaz | 2-6,7-6,3-6 |
| ITF - M15 Genova | 2021/06/20 08:00 | Johan Nikles v Luca Nardi | 4-6,2-6 |
| ITF - M15 Genova | 2021/06/19 15:00 | Edoardo Eremin v Johan Nikles | 2-6,3-6 |
| ITF - M15 Genova | 2021/06/18 11:30 | Johan Nikles v Dragos Nicolae Madaras | 7-5,3-6,7-5 |
| ITF - M15 Genova | 2021/06/17 08:00 | Johan Nikles v Pedro Boscardin Dias | 6-3,6-3 |
| ITF - M15 Genova | 2021/06/16 08:00 | Johan Nikles v Maxime Mora | 6-2,6-0 |
| ITF - M25 Vic | 2021/05/18 09:35 | Johan Nikles v Miguel Damas | 6-3,7-6 |
| ITF - M25 Vic | 2021/05/17 09:00 | Johan Nikles v Maxime Mora | 6-2,6-2 |
| ITF - M25 Alkmaar | 2021/06/23 12:10 | Louis Wessels v Carlos Lopez Montagud | 3-6,6-4,4-6 |
| ITF - M15 Bucuresti | 2021/05/25 15:00 | Facundo Juarez v Louis Wessels | 6-2,6-0 |
| ITF - M15 Troisdorf | 2021/05/14 16:10 | Louis Wessels v Sebastian Fanselow | 4-6,5-7 |
| ITF - M15 Troisdorf | 2021/05/13 11:45 | Louis Wessels v Marlon Vankan | 4-6,6-2,7-6 |
| ITF - M15 Troisdorf | 2021/05/12 11:40 | Louis Wessels v Glenn Smits | 6-1,6-3 |
| ITF - M15 Sibenik | 2021/04/21 08:00 | Louis Wessels v Simon Beaupain | 7-5,1-6,5-7 |
| ITF - M25 Meerbusch | 2021/04/14 10:00 | Louis Wessels v Niels Visker | 2-6,2-6 |
| ITF - M25 Naples | 2021/02/25 18:10 | Diego Hidalgo v Louis Wessels | 6-2,6-4 |