| ITF M25 Nottingham Qual | 2023/04/30 09:00 | Christian Sigsgaard v Ioannis Xilas | 6-7,2-6 |
| ITF M25 Nottingham | 2023/04/28 12:30 | Christian Sigsgaard v August Holmgren | 5-7,4-6 |
| ITF M25 Nottingham | 2023/04/27 14:05 | Clement Chidekh v Christian Sigsgaard | 4-6,3-6 |
| ITF M25 Nottingham | 2023/04/25 10:25 | Christian Sigsgaard v Mark Whitehouse | 6-4,6-1 |
| ITF M25 Saint Dizier | 2023/03/30 11:15 | Florian Broska v Christian Sigsgaard | 7-6,6-3 |
| ITF M25 Saint Dizier | 2023/03/29 12:20 | Christian Sigsgaard v Tristan Lamasine | 7-6,6-4 |
| ITF M25 Toulouse | 2023/03/23 09:55 | Christian Sigsgaard v Goncalo Oliveira | 3-6,3-6 |
| ITF M25 Toulouse | 2023/03/22 09:00 | Max Cunat v Christian Sigsgaard | 3-6,6-7 |
| UTR Pro Mexico City | 2023/04/29 18:06 | Armando Sotelo v Hans Albert Schubert | 3-6,6-4,7-6 |
| UTR Pro Mexico City | 2023/04/28 21:41 | Dylan Charlap v Hans Albert Schubert | 3-6,4-6 |
| UTR Pro Mexico City | 2023/04/27 19:30 | Gerardo L Villasenor v Hans Albert Schubert | 6-4,3-6,5-1 |
| UTR Pro Mexico City | 2023/04/26 21:00 | Juan Sebastian Gomez v Hans Albert Schubert | 6-4,6-2 |
| UTR Pro Mexico City | 2023/04/24 20:14 | Cesar Ramirez v Hans Albert Schubert | 6-2,3-6,6-4 |
| ITF M15 Santo Domingo | 2023/04/10 14:00 | Hans Albert Schubert v Ignacio B Alia | 5-7,6-2,5-10 |
| ITF M15 Santo Domingo | 2023/04/03 14:00 | Julian Gimenez v Hans Albert Schubert | 6-1,6-4 |
| ITF M15 Santo Domingo | 2023/04/02 14:00 | Franco Marini v Hans Albert Schubert | 3-6,1-6 |