Stadium: Court 17 Round: 54 Ground: Clay
| ITF - M15 Kamen | 2023/06/26 08:00 | Joshua Schaefer v Piet Steveker | 3-6,1-6 |
| ITF - M25 Mungia | 2023/06/18 09:30 | Joshua Schaefer v Kane Bonsach Ganley | 4-6,4-6 |
| ITF - M15 Rabat | 2023/06/11 13:00 | Esteban Bruna v Joshua Schaefer | 6-4,4-6,5-10 |
| ITF - M15 Kalmar | 2023/05/15 08:15 | Joshua Schaefer v Filip Gustafsson | 1-6,3-6 |
| ITF - M25 Varnamo | 2023/05/08 11:00 | Joshua Schaefer v Anton Krondell | 7-5,7-6 |
| ITF - M15 Kursumlijska Banja | 2023/05/01 09:55 | Alexandru Luca v Joshua Schaefer | 6-3,6-7,10-6 |
| ITF - M15 Kursumlijska Banja | 2023/04/24 08:40 | Alessandro Bellifemine v Joshua Schaefer | 6-2,6-2 |
| ITF - M25 Angers | 2023/04/16 08:00 | Artiom Dorofeev v Joshua Schaefer | 6-0,6-0 |
| ITF - M15 Kottingbrunn | 2023/08/13 08:00 | Dominique Graf v Drazen Petrovic | 6-3,6-7,10-5 |
| ITF - M25 Osijek | 2023/08/07 13:15 | Dominique Graf v Stevan Popovic | 4-6,6-1,12-10 |
| ITF - M25 Osijek | 2023/08/06 10:00 | Dominique Graf v Marsel Znuderl | 4-6,7-6,10-8 |
| ITF - M25 Wetzlar | 2023/07/31 08:00 | Dominique Graf v Sven Corbinais | 6-7,7-6,5-10 |
| ITF - M25 Skopje | 2023/06/06 07:30 | Christian Fellin v Dominique Graf | 2-6,6-3,9-11 |
| ITF - M25 Skopje | 2023/06/05 09:50 | Mal Agushi v Dominique Graf | 6-4,2-6,3-10 |
| ITF - M25 Skopje | 2023/06/04 08:00 | Mihail Kuseski v Dominique Graf | 2-6,4-6 |
| ITF - M25 Jablonec Nad Nisou | 2023/05/28 10:30 | Alan Bojarski v Dominique Graf | 6-2,6-2 |