Stadium: Court 8 Round: 54 Ground: Clay
| ITF M15 Antalya | 2023/04/30 07:00 | Guy Den Heijer v Juan Manuel La Serna | 6-7,1-6 |
| ITF M15 Antalya | 2023/04/02 07:00 | Guy Den Heijer v Niels Visker | 1-6,6-4,3-10 |
| ITF M25 Portimao | 2023/03/14 11:00 | Guy Den Heijer v Mikel Martinez | 1-6,2-6 |
| ITF M25 Portimao | 2023/03/13 15:35 | Guy Den Heijer v Miguel Pereira Lopes | 6-1,6-3 |
| ITF M25 Quinta Do Lago | 2023/03/09 17:20 | Jesper De Jong v Guy Den Heijer | 6-3,6-1 |
| ITF M25 Quinta Do Lago | 2023/03/09 13:30 | Sean Hodkin v Guy Den Heijer | 4-6,4-6 |
| ITF M25 Quinta Do Lago | 2023/03/08 16:15 | Luis Miguel Saraiva v Guy Den Heijer | 4-6,3-6 |
| ITF M25 Loule | 2023/02/26 10:00 | Timofey Stepanov v Guy Den Heijer | 6-4,6-2 |
| UK Pro League | 2023/05/09 10:00 | Louis Bowden v Toby Martin | 4-6,6-0,10-7 |
| UK Pro League | 2023/05/08 10:00 | Oscar Weightman v Toby Martin | 6-1,6-7,10-7 |
| ITF M25 Nottingham Qual | 2023/04/30 10:15 | Toby Martin v Joe Tyler | 4-6,3-6 |
| ITF M25 Nottingham | 2023/04/16 10:10 | Hamish Stewart v Toby Martin | 6-1,6-1 |
| ITF M25 Calabasas | 2023/03/20 18:00 | Osgar O'Hoisin v Toby Martin | 6-3,4-6,10-5 |
| ITF M25 Bakersfield | 2023/03/15 19:00 | Finn Reynolds v Toby Martin | 6-4,6-7,10-7 |
| ITF M25 Bakersfield | 2023/03/13 19:30 | Alex Sklizovic v Toby Martin | 0-6,0-6 |
| ITF M15 Naples | 2023/02/27 15:30 | Toby Martin v Francisco T Geschwind | 6-0,4-6,6-10 |