Stadium: Center Court Round: 25 Ground: Clay
| ITF M15 Kursumlijska Banja | 2023/06/19 07:30 | Gabriel Matuszewski v Dimitrije Zubac | 6-7,6-4,8-10 |
| ITF M15 Kursumlijska Banja | 2023/06/18 07:00 | Gabriel Matuszewski v Nikola Kolyachev | 6-4,6-4 |
| ITF M15 Kursumlijska Banja | 2023/06/11 12:30 | Gabriel Matuszewski v Marko Maksimovic | 1-6,1-6 |
| ITF M25 Kursumlijska Banja | 2023/06/06 07:00 | Alexander Zgirovsky v Gabriel Matuszewski | 6-4,6-3 |
| ITF M25 Kursumlijska Banja | 2023/06/05 06:55 | Marko Nikolic v Gabriel Matuszewski | 3-6,6-2,6-10 |
| ITF M15 Kursumlijska Banja | 2023/05/29 12:20 | Gabriel Matuszewski v Lorenzo Carboni | 1-6,4-6 |
| ITF M15 Kursumlijska Banja | 2023/05/28 11:00 | Gabriel Matuszewski v Benjamin Denis Alarcon | 6-3,6-7,10-3 |
| ITF M25 Opatija | 2023/03/19 10:30 | Jan Dimitrijevic v Gabriel Matuszewski | 6-3,6-3 |
| ITF M25 Poprad | 2023/06/22 10:50 | Jiri Barnat v Patrik Rikl | 2-6,2-6 |
| ITF M25 Poprad | 2023/06/21 08:00 | Lukas Pokorny v Jiri Barnat | 5-7,7-5,3-6 |
| ITF M15 Nyiregyhaza | 2023/06/08 08:00 | Jiri Barnat v Zsombor Velcz | 6-3,6-7,5-7 |
| ITF M15 Nyiregyhaza | 2023/06/07 11:00 | Jiri Barnat v Illya Beloborodko | 7-6,6-4 |
| ITF M25 Jablonec Nad Nisou | 2023/05/31 09:20 | Murkel Dellien v Jiri Barnat | 7-6,6-3 |
| ITF M25 Prague | 2023/05/17 09:00 | Jiri Barnat v Lukas Neumayer | 3-6,4-6 |
| Challenger Prague | 2023/04/30 11:35 | Jiri Barnat v Alejandro Moro Canas | 5-7,5-7 |
| Challenger Ostrava | 2023/04/23 08:30 | Billy Harris v Jiri Barnat | 6-2,6-2 |