Stadium: Court 4 Round: 19 Ground: Clay
| Challenger - Oeiras | 2022/03/27 13:20 | Ergi Kirkin v Ryan Nijboer | 6-0,7-5 |
| Challenger - Zadar | 2022/03/21 12:05 | Cezar Cretu v Ergi Kirkin | 7-5,6-3 |
| Challenger - Zadar | 2022/03/20 13:05 | Admir Kalender v Ergi Kirkin | 3-6,1-6 |
| ITF M25 - Rovinj | 2022/03/19 09:30 | Dalibor Svrcina v Ergi Kirkin | 6-2,1-6,6-2 |
| ITF M25 - Rovinj | 2022/03/18 11:05 | Ergi Kirkin v Arthur Cazaux | 6-2,6-3 |
| ITF M25 - Rovinj | 2022/03/17 09:00 | Ergi Kirkin v Timo Stodder | 6-0,3-6,6-2 |
| ITF M25 - Rovinj | 2022/03/15 12:35 | Ergi Kirkin v Giovanni Fonio | 6-4,7-6 |
| ITF M25 - Porec | 2022/03/09 12:25 | Mathieu Perchicot v Ergi Kirkin | 6-3,3-6,6-1 |
| Challenger - Oeiras | 2022/03/27 10:45 | Miguel Gomes v Guy Den Ouden | 3-6,2-6 |
| ITF M25 - Quinta Do Lago | 2022/03/25 10:00 | Alec Deckers v Guy Den Ouden | 7-6,6-1 |
| ITF M25 - Loule | 2022/03/17 13:45 | Guy Den Ouden v Jan Choinski | 6-7,3-6 |
| ITF M15 - Monastir | 2022/02/23 12:30 | Alexandre Aubriot v Guy Den Ouden | 6-2,6-4 |
| ITF M15 - Monastir | 2022/02/19 08:30 | Alberto Barroso Campos v Guy Den Ouden | 6-3,6-1 |
| ITF M15 - Monastir | 2022/02/18 10:05 | Matic Spec v Guy Den Ouden | 6-4,3-6,2-6 |
| ITF M15 - Monastir | 2022/02/17 12:30 | Diego A B Sanchez v Guy Den Ouden | 1-6,2-6 |
| ITF M15 - Monastir | 2022/02/16 14:45 | Joris Moret v Guy Den Ouden | 0-6,3-6 |