Stadium: Court 14 Round: 27 Ground: Hardcourt outdoor
| ITF M15 Heraklion | 2023/10/25 06:30 | Guy Den Ouden v Ioannis Kountourakis | 7-5,6-4 |
| ITF M15 Heraklion | 2023/10/20 07:00 | Guy Den Ouden v Jakub Nicod | 2-6,6-7 |
| ITF M15 Heraklion | 2023/10/19 08:45 | 돈데르스, 닥스 v Guy Den Ouden | 6-7,5-7 |
| ITF M15 Heraklion | 2023/10/18 07:25 | Guy Den Ouden v Matthew William Donald | 6-4,6-2 |
| ITF M15 Heraklion | 2023/10/17 06:30 | Guy Den Ouden v 쿠아일, 다비드 | 6-1,7-5 |
| ITF M15 Heraklion | 2023/10/16 07:00 | Guy Den Ouden v 나다프, 하미드 레자 | 6-3,6-4 |
| ITF M25 Koksijde | 2023/08/20 13:00 | Guy Den Ouden v 레그아웃, 티모 | 7-5,6-2 |
| ITF M25 Koksijde | 2023/08/19 12:00 | Ambrogi, Luciano Emanuel v Guy Den Ouden | 3-6,4-6 |
| ITF M15 Heraklion | 2023/10/25 08:10 | 헤이노넨, 아담 v Maassen, Graham | 6-4,6-3 |
| ITF M15 Heraklion | 2023/10/24 06:30 | 비스커, 니엘스 v 헤이노넨, 아담 | 6-4,3-6,6-10 |
| ITF M15 Heraklion | 2023/10/23 10:30 | Piotr Siekanowicz v 헤이노넨, 아담 | 2-6,4-6 |
| ITF M15 Heraklion | 2023/10/17 06:30 | 헤이노넨, 아담 v Ng, Ki Lung | 5-7,4-6 |
| ITF M25 Falun | 2023/09/26 12:00 | 헤이노넨, 아담 v 카를로브시키, 에브게니 | 6-7,1-6 |
| ITF M25 Falun | 2023/09/25 08:00 | 헤이노넨, 아담 v Jack Karlsson Winstrand | 6-1,6-3 |
| ITF M25 Falun | 2023/09/24 07:55 | 헤이노넨, 아담 v Linus Videhult | 6-3,6-3 |
| ITF M15 Danderyd | 2023/09/19 12:00 | 헤이노넨, 아담 v Schnaitter, Jakob | 2-6,2-6 |