Stadium: Centre Court Round: 28 Ground: Clay
| ITF M15 Alkmaar | 2023/06/30 14:30 | 데케르스, 알렉 v Simkiss, Luke | 6-7,6-4,4-6 |
| ITF M15 Alkmaar | 2023/06/29 10:55 | Simkiss, Luke v 폰트조디크로모, 시단 | 6-3,7-5 |
| ITF M15 Alkmaar | 2023/06/28 13:55 | Simkiss, Luke v Broska, Florian | 6-7,6-4,7-6 |
| ITF M15 Alkmaar | 2023/06/25 10:00 | Luke Tollenaar v Simkiss, Luke | 0-6,1-6 |
| UTR Pro London | 2023/05/20 08:30 | Weightman, Oscar v Simkiss, Luke | 6-3,6-0 |
| UTR Pro London | 2023/05/19 10:40 | Simkiss, Luke v Stefan Cooper | 6-7,4-6 |
| UTR Pro London | 2023/05/17 07:00 | Simkiss, Luke v 데니소브, 이반 | 2-6,7-5,6-4 |
| UTR Pro London | 2023/05/16 08:30 | Simkiss, Luke v Sklenka, Victor | 6-7,7-6,7-6 |
| ITF M15 Alkmaar | 2023/06/30 12:05 | 니부어, 리얀 v Sander Jong | 3-6,4-6 |
| ITF M15 Alkmaar | 2023/06/27 11:10 | Sander Jong v 델라베도바, 마튜 | 6-4,6-2 |
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 2023/06/25 12:00 | Sander Jong v von Der Schulenburg, Jeffrey | 6-1,6-0 |
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 2023/06/24 11:00 | Joao Fonseca v Sander Jong | 4-6,3-6 |
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 2023/06/23 12:30 | 웨스트라트, 로데비직 v Sander Jong | 3-6,7-5,2-6 |
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 2023/06/22 12:30 | Sander Jong v 나프, 알렉스 | 6-4,6-3 |
| Saarlouis, Singles Qualifying M-ITF-GER-07A | 2023/06/20 11:35 | Yannik Kelm v Sander Jong | 1-6,0-6 |
| ITF M15 Duffel | 2023/06/15 10:00 | 잔, 제레미 v Sander Jong | 7-6,6-4 |