Stadium: Court 6 Round: 25 Ground: Hardcourt outdoor
| 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 |
| ITF - M15 Al Zahra | 2022/11/05 07:00 | Kristjan Tamm v William Jansen | 6-2,6-4 |
| ITF M25 - Roehampton | 2023/07/31 09:00 | Luke Simkiss v Emile Hudd | 7-5,7-6 |
| ITF M25 - Roehampton | 2023/07/30 09:00 | Luke Simkiss v Zach Stephens | 6-4,7-5 |
| ITF M25 - Roehampton | 2023/07/17 09:50 | Luke Simkiss v Ryan James Storrie | 5-7,2-6 |
| ITF M25 - Roehampton | 2023/07/16 10:00 | Alexander Klintcharov v Luke Simkiss | 4-6,5-7 |
| ITF - M25 Nottingham | 2023/07/12 12:45 | Jack Pinnington Jones v Luke Simkiss | 4-6,6-3,6-4 |
| ITF - M25 Nottingham | 2023/07/11 14:00 | Luke Simkiss v Ali Habib | 6-1,6-2 |
| ITF - M25 Nottingham | 2023/07/10 10:00 | Luke Simkiss v George Houghton | 7-6,6-1 |
| ITF - M25 Nottingham | 2023/07/09 12:20 | Ronald Hohmann v Luke Simkiss | 6-2,3-6,6-10 |