Stadium: 5 Round: 54 Ground: Hardcourt outdoor
| ITF M25 Nottingham | 2023/07/10 10:00 | Alexander Klintcharov v Emile Hudd | 2-6,2-6 |
| ITF M25 Nottingham | 2023/07/09 10:00 | Alexander Klintcharov v Max Benaim | 6-3,6-1 |
| ITF M15 Celje | 2023/06/26 11:40 | Mark Wallner v Alexander Klintcharov | 6-2,7-6 |
| ITF M15 Store | 2023/06/24 09:15 | Alexander Klintcharov v Dominik Kellovsky | 2-6,6-7 |
| ITF M15 Store | 2023/06/23 07:00 | Alexander Klintcharov v Andrea Guerrieri | 7-5,7-6 |
| ITF M15 Store | 2023/06/22 07:25 | Lorenzo Bocchi v Alexander Klintcharov | 2-6,2-6 |
| ITF M15 Store | 2023/06/21 12:15 | Alexander Klintcharov v Matic Kriznik | 2-6,6-2,6-3 |
| ITF M15 Store | 2023/06/20 12:10 | Miha Vetrih v Alexander Klintcharov | 2-6,1-6 |
| 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 |
| ITF M15 Alkmaar | 2023/07/01 11:50 | Luke Simkiss v Sander Jong | 4-6,1-6 |
| ITF M15 Alkmaar | 2023/06/30 14:30 | Alec Deckers v Luke Simkiss | 6-7,6-4,4-6 |
| ITF M15 Alkmaar | 2023/06/29 10:55 | Luke Simkiss v Sidane Pontjodikromo | 6-3,7-5 |
| ITF M15 Alkmaar | 2023/06/28 13:55 | Luke Simkiss v Florian Broska | 6-7,6-4,7-6 |