Stadium: Court 15 Round: 44 Ground: Hardcourt outdoor
| ITF M15 - Heraklion | 2023/10/16 07:00 | Guy Den Ouden v Hamid Reza Nadaf | 6-3,6-4 |
| ITF M25 - Koksijde | 2023/08/20 13:00 | Guy Den Ouden v Timo Legout | 7-5,6-2 |
| ITF M25 - Koksijde | 2023/08/19 12:00 | Luciano Emanuel Ambrogi v Guy Den Ouden | 3-6,4-6 |
| ITF M25 - Koksijde | 2023/08/18 08:00 | Guy Den Ouden v Buvaysar Gadamauri | 6-3,7-5 |
| ITF M25 - Koksijde | 2023/08/16 15:30 | Guy Den Ouden v Alexander Blockx | 6-2,6-2 |
| ITF M25 - Koksijde | 2023/08/14 14:10 | Guy Den Ouden v Jack Loge | 7-5,6-0 |
| Challenger Meerbusch | 2023/08/09 13:05 | Guy Den Ouden v Titouan Droguet | 4-6,2-6 |
| Challenger Meerbusch | 2023/08/07 13:15 | Guy Den Ouden v Georgii Kravchenko | 6-2,6-3 |
| ITF M15 - Heraklion | 2023/10/16 07:00 | Eleftherios Neos v David Quayle | 3-6,4-6 |
| UK Pro League | 2023/10/07 13:00 | David Quayle v Sean Hodkin | 2-6,1-6 |
| UK Pro League | 2023/10/06 10:00 | David Quayle v George Houghton | 2-6,4-6 |
| UK Pro League | 2023/10/05 10:00 | Brandon Murphy v David Quayle | 4-6,2-6 |
| UK Pro League | 2023/10/04 10:00 | Harry Wendelken v David Quayle | 3-6,6-1,11-9 |
| UK Pro League | 2023/10/02 13:00 | Ivan Denisov v David Quayle | 6-4,6-2 |
| ITF M15 - Sharm El Sheikh | 2023/09/28 09:55 | David Quayle v Stuart Parker | 4-6,6-7 |
| ITF M15 - Sharm El Sheikh | 2023/09/27 10:10 | Freddie Ridout v David Quayle | 4-6,3-6 |