Stadium: Court 1 Round: 27 Ground: Clay
| ITF M15 Alaminos-Larnaca | 2023/04/27 07:00 | Guy Den Ouden v Nicolas Parizzia | 7-5,6-0 |
| ITF M15 Alaminos-Larnaca | 2023/04/26 07:00 | Guy Den Ouden v Shinnosuke Hiramatsu | 6-2,6-1 |
| ITF M25 Loule | 2023/03/02 13:30 | Guy Den Ouden v Giovanni Fonio | 4-6,4-6 |
| ITF M25 Loule | 2023/03/01 13:20 | Goncalo Falcao v Guy Den Ouden | 4-6,6-4,1-6 |
| ITF M25 Loule | 2023/02/28 10:30 | Guy Den Ouden v Niels Visker | 2-6,7-5,10-2 |
| ITF M25 Loule | 2023/02/27 11:40 | Guy Den Ouden v Ian Luca Cervantes Tomas | 6-3,6-3 |
| ITF M25 Loule | 2023/02/26 10:00 | Guy Den Ouden v Salvador Monteiro | 6-0,6-1 |
| ITF M25 Monastir | 2023/02/21 09:30 | Fausto Tabacco v Guy Den Ouden | 6-2,6-3 |
| ITF M15 Alaminos-Larnaca | 2023/04/27 10:25 | Shunsuke Wakita v Jonas Trinker | 4-6,4-6 |
| ITF M15 Alaminos-Larnaca | 2023/04/25 07:00 | Jonas Trinker v Sebastian Gima | 6-4,6-4 |
| ITF M25 Trnava | 2023/03/28 11:20 | Jonas Trinker v Matyas Cerny | 2-6,4-6 |
| ITF M25 Trnava | 2023/03/27 08:00 | Jonas Trinker v Martin Benes | 6-3,4-6,13-11 |
| ITF M15 Heraklion | 2023/03/21 08:00 | Jonas Trinker v Ben Weintraub | 2-6,6-7 |
| ITF M15 Heraklion | 2023/03/20 09:00 | Jonas Trinker v Felix Einig | 7-5,6-2 |
| ITF M25 Heraklion | 2023/03/14 07:00 | Jonas Trinker v Stephanos Schinas | 4-6,2-6 |
| ITF M25 Heraklion | 2022/11/24 11:35 | Jonas Trinker v Matthew Dellavedova | 6-7,4-6 |