Stadium: Court 2 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Doha | 2023/01/16 12:00 | Denis Klok v Guy Den Heijer | 6-2,3-6,10-5 |
| ITF M25 Doha | 2023/01/15 14:15 | Adel Ghanim v Guy Den Heijer | 0-6,1-6 |
| ITF M15 Doha | 2023/01/12 13:15 | Guy Den Heijer v Kristjan Tamm | 4-6,6-7 |
| ITF M15 Doha | 2023/01/11 12:00 | Samir Hamza Reguig v Guy Den Heijer | 3-6,1-6 |
| ITF M15 Doha | 2023/01/10 12:00 | Guy Den Heijer v Arslanbek Aitkulov | 6-2,7-5 |
| ITF M25 Oldenzaal | 2022/08/25 16:55 | Max Houkes v Guy Den Heijer | 6-1,6-3 |
| ITF M25 Oldenzaal | 2022/08/24 11:50 | Thijmen Loof v Guy Den Heijer | 3-6,5-7 |
| ITF M15 Alkmaar | 2022/06/21 18:00 | Guy Den Heijer v Jose Fco. Vidal Azorin | 2-6,2-6 |
| ITF M25 Madrid | 2022/12/06 09:00 | Mikel Martinez v Keanu Elias Immler | 0-6,2-6 |
| ITF M25 Madrid | 2022/12/05 12:30 | Mikel Martinez v David Puig Molina | 3-6,6-0,10-1 |
| ITF M25 Madrid | 2022/12/04 13:00 | Mikel Martinez v Joan Busoms Puig | 6-3,1-6,14-12 |
| ITF M25 Madrid | 2022/11/27 13:00 | Mikel Martinez v Jonas Schaer | 7-5,1-6,6-10 |
| ITF M25 Madrid | 2022/11/22 08:00 | Alan F R Fierros v Mikel Martinez | 6-4,6-4 |
| ITF M25 Madrid | 2022/11/20 11:00 | David Puig Molina v Mikel Martinez | 3-6,0-6 |
| ITF M25 Girona | 2022/10/17 08:00 | Mikel Martinez v Inaki Cabrera Bello | 2-6,3-6 |
| ITF M25 Madrid | 2022/09/13 12:00 | Kalin Ivanovski v Mikel Martinez | 6-4,6-2 |