Estadio: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Roehampton | 2023/08/02 11:00 | Joshua Goodger v Johannus Monday | 6-3,7-6 |
| ITF M25 Roehampton | 2023/08/01 09:00 | Henry Searle v Johannus Monday | 6-7,6-3,3-6 |
| ITF M25 Roehampton | 2023/07/21 09:55 | Johannus Monday v Luke Saville | 6-7,6-7 |
| ITF M25 Roehampton | 2023/07/20 10:00 | Johannus Monday v Ryan James Storrie | 6-3,4-6,6-1 |
| ITF M25 Roehampton | 2023/07/19 10:55 | Johannus Monday v Devin Badenhorst | 7-6,6-4 |
| ITF M25 Roehampton | 2023/07/18 14:20 | Johannus Monday v Finn Murgett | 6-2,6-3 |
| Wimbledon | 2023/06/28 10:00 | Radu Albot v Johannus Monday | 3-6,7-6,6-2 |
| Wimbledon | 2023/06/26 10:00 | Mili Poljicak v Johannus Monday | 6-3,6-7,3-6 |
| ITF M25 Roehampton | 2023/08/01 11:55 | William Jansen v Luke Simkiss | 3-6,6-1,5-7 |
| ITF M25 Roehampton | 2023/07/19 10:50 | William Jansen v Daniel Cox | 7-6,4-6,5-7 |
| ITF M25 Roehampton | 2023/07/18 10:00 | William Jansen v Johannes Ingildsen | 6-2,7-5 |
| ITF M25 Nottingham | 2023/07/12 09:50 | Billy Blaydes v William Jansen | 7-6,6-4 |
| ITF M15 Sharm El Sheikh | 2022/12/08 10:10 | William Jansen v Samuel Vincent Ruggeri | 6-7,6-1,6-7 |
| ITF M15 Sharm El Sheikh | 2022/12/07 13:05 | Michael Bassem Sobhy v William Jansen | 3-6,6-3,2-6 |
| ITF M15 Madrid | 2022/11/24 09:35 | William Jansen v Adolfo Daniel Vallejo | 6-7,4-6 |
| ITF M15 Madrid | 2022/11/23 14:15 | Miguel Damas v William Jansen | 6-4,3-6,4-6 |