| UTR Pro Hilversum | 2023/06/05 07:30 | Guy Den Heijer v Ivan Sergeyev | 0-6,2-6 |
| 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 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 |
| UTR Pro Hilversum | 2023/06/05 11:00 | Victor Sklenka v Julian Cundom | 4-6,6-7 |
| ITF M25 Jablonec Nad Nisou | 2023/05/28 10:30 | Victor Sklenka v Filip Apltauer | 2-6,4-6 |
| ITF M25 Most | 2023/05/23 09:35 | Tom Gentzsch v Victor Sklenka | 6-3,6-3 |
| ITF M25 Most | 2023/05/22 09:00 | Victor Sklenka v Ondrej Horak | 2-6,7-5,10-4 |
| UTR Pro London | 2023/05/20 07:00 | Victor Sklenka v Kabeer Kapasi | 4-6,0-0 |
| UTR Pro London | 2023/05/19 10:38 | Victor Sklenka v Ivan Denisov | 6-0,1-6,6-1 |
| UTR Pro London | 2023/05/18 07:00 | Victor Sklenka v Stefan Cooper | 3-6,6-1,5-6 |
| UTR Pro London | 2023/05/17 10:00 | Franco Capalbo v Victor Sklenka | 2-6,6-1,7-6 |