Stadium: Court 1 Round: 25 Ground: Clay
| ITF M25 Villers Les Nancy | 2021/11/08 09:00 | Maikel De Boes v Arjun Mehrotra | 3-6,5-7 |
| ITF M15 Doha | 2021/10/20 14:20 | Daniel Cox v Maikel De Boes | 6-2,6-2 |
| ITF M15 Doha | 2021/10/14 15:05 | Dominik Boehler v Maikel De Boes | 6-0,6-1 |
| ITF M15 Doha | 2021/10/13 19:25 | Rashed Nawaf v Maikel De Boes | 3-6,1-6 |
| ITF M15 Cairo | 2021/09/15 08:00 | Maikel De Boes v Santiago De La Fuente | 1-6,3-6 |
| ITF M15 Cairo | 2021/09/14 07:00 | Samir Hamza Reguig v Maikel De Boes | 3-6,4-6 |
| ITF M15 Cairo | 2021/09/13 08:00 | Ioannis Kountourakis v Maikel De Boes | 4-6,4-6 |
| ITF M15 Cairo | 2021/09/12 12:30 | Michael Bassem Sobhy v Maikel De Boes | 4-6,6-3,3-10 |
| ITF M15 Antalya | 2021/12/17 06:30 | Denis Klok v Luca Van Assche | 3-6,2-6 |
| ITF M15 Antalya | 2021/12/16 06:30 | Denis Klok v Gorazd Srbljak | 7-6,6-1 |
| ITF M15 Antalya | 2021/12/14 09:35 | Denis Klok v Paul Woerner | 6-2,1-6,6-4 |
| ITF M15 Antalya | 2021/12/10 11:10 | Tadas Babelis v Denis Klok | 4-6,7-6,7-6 |
| ITF M15 Antalya | 2021/12/10 07:40 | Koray Kirci v Denis Klok | 5-7,4-6 |
| ITF M15 Antalya | 2021/12/09 08:10 | Mikhail Fufygin v Denis Klok | 4-6,3-6 |
| ITF M15 Nules | 2021/11/16 12:15 | Denis Klok v Carlos Sanchez Jover | 4-6,1-6 |
| ITF M15 Antalya | 2021/11/03 13:05 | Mircea-Alexandru Jecan v Denis Klok | 6-2,6-1 |