Stadium: Court 3 Round: 62 Ground: Clay
| ITF M15 Antalya | 2021/02/07 06:00 | Guy Den Heijer v Sidane Pontjodikromo | 7-5,2-6,10-8 |
| ITF M15 Antalya | 2021/02/01 11:00 | Guy Den Heijer v Leopold Zima | 4-6,3-6 |
| ITF M15 Antalya | 2021/01/29 07:00 | Timur Kiyamov v Guy Den Heijer | 4-6,3-6 |
| ITF M15 Antalya | 2021/01/29 07:00 | Joao Lucas Reis da Silva v Guy Den Heijer | 6-3,6-3 |
| ITF M15 Antalya | 2021/01/28 07:00 | Mark Tryakshin v Guy Den Heijer | 2-6,1-6 |
| ITF M15 Alkmaar | 2020/08/23 14:30 | Guy Den Heijer v Leon Hoeveler | 6-2,6-3 |
| ITF M15 Loule | 2020/03/12 14:05 | Evan Hoyt v Guy Den Heijer | 6-2,5-7,1-6 |
| ITF M15 Loule | 2020/03/10 13:25 | Alexis Boureau v Guy Den Heijer | 3-6,3-6 |
| ITF M15 Antalya | 2021/02/07 06:00 | Benedikt Henning v Denis Klok | 6-1,6-1 |
| ITF M15 Monastir | 2020/12/08 09:45 | Luca Giacomini v Benedikt Henning | 6-7,6-4,6-0 |
| ITF M15 Monastir | 2020/11/29 10:30 | Clement Deleersnyder v Benedikt Henning | 6-3,6-1 |
| ITF M15 Monastir | 2020/11/24 10:00 | Benedikt Henning v Gabriel Roveri Sidney | 5-7,4-6 |
| ITF M25 Hamburg | 2020/10/20 11:35 | Duje Ajdukovic v Benedikt Henning | 6-3,6-2 |
| ITF M25 Hamburg | 2020/10/19 11:45 | Nick Hardt v Benedikt Henning | 5-7,4-6 |
| ITF M25 Hamburg | 2020/10/18 12:30 | Benedikt Henning v Robert Strombachs | 7-6,6-2 |
| ITF M15 Monastir | 2020/09/28 13:00 | Marius Ruzgas v Benedikt Henning | 6-4,6-2 |