Stadium: Sparkassen Court Round: 25 Ground: Clay
| ITF M25 Haag | 2021/07/02 14:30 | Jelle Sels v Christopher Heyman | 6-3,6-0 |
| ITF M25 Haag | 2021/07/01 11:40 | Christopher Heyman v Jesper De Jong | 6-4,7-5 |
| ITF M25 Haag | 2021/06/30 12:15 | Raphael Collignon v Christopher Heyman | 1-6,7-6,3-6 |
| ITF M25 Alkmaar | 2021/06/26 13:35 | Nicolas Alvarez Varona v Christopher Heyman | 6-4,3-6,7-6 |
| ITF M25 Alkmaar | 2021/06/25 11:45 | Christopher Heyman v Gijs Brouwer | 6-4,6-4 |
| ITF M25 Alkmaar | 2021/06/24 09:00 | Kaichi Uchida v Christopher Heyman | 2-6,6-3,6-7 |
| ITF M25 Alkmaar | 2021/06/22 09:00 | Christopher Heyman v Alexander Shevchenko | 7-6,6-2 |
| ITF M15 - Antalya | 2021/06/17 07:30 | Francisco Comesana v Christopher Heyman | 6-4,6-3 |
| ITF M25 Haag | 2021/06/29 09:00 | Henri Squire v Julian Ocleppo | 5-7,5-7 |
| ITF M25 Haag | 2021/06/28 10:15 | Guy Den Ouden v Henri Squire | 2-6,0-6 |
| ITF M25 Haag | 2021/06/27 08:00 | Elgin Khoeblal v Henri Squire | 3-6,2-6 |
| Mistrovství Německa | 2020/12/12 11:30 | Benjamin Hassan v Henri Squire | 6-3,6-4 |
| Mistrovství Německa | 2020/12/11 09:00 | Jordi Walder v Henri Squire | 6-7,2-6 |
| Mistrovství Německa | 2020/12/10 10:30 | Henri Squire v Hendrik Jebens | 6-2,6-4 |
| Mistrovství Německa | 2020/12/08 16:30 | Robert Strombachs v Henri Squire | 2-6,6-7 |
| ITF M25 Hamburk | 2020/10/21 10:40 | Stefan Kozlov v Henri Squire | 6-4,6-1 |