Stadium: Court 3 Round: 62 Ground: Clay
| ITF M25 Porto | 2023/07/25 11:40 | Jake Van Emburgh v Thomas Mathys | 6-0,6-4 |
| ITF M25 Porto | 2023/07/24 13:30 | Thomas Mathys v Rodrigo Beires | 6-1,6-1 |
| ITF M25 Porto | 2023/07/23 12:00 | Tomas Almeida v Thomas Mathys | 5-7,4-6 |
| ITF M25 Klosters | 2023/07/02 12:35 | Thomas Mathys v Raffael Schaer | 3-6,4-6 |
| ITF M15 Monastir | 2023/04/16 08:00 | Thomas Mathys v Adrian Arcon | 3-6,3-6 |
| ITF M15 Monastir | 2023/04/09 08:00 | Dusan Baranec v Thomas Mathys | 6-2,6-0 |
| ITF M15 Monastir | 2023/03/01 08:30 | Thomas Mathys v Federico Arnaboldi | 2-6,2-6 |
| ITF M15 Monastir | 2023/02/27 13:30 | Josh Roe Flannelly v Thomas Mathys | 4-6,4-6 |
| ITF M25 Gandia | 2023/07/16 08:00 | Sam K Baumgartner v Vicente O Moratalla | 3-6,1-6 |
| ITF M25 Roda de Bara | 2023/07/09 09:00 | Jordi Mas De Ugarte v Sam K Baumgartner | 6-4,2-6,10-7 |
| ITF M25 Klosters | 2023/07/02 12:45 | Luca Staeheli v Sam K Baumgartner | 6-4,6-2 |
| ITF M25 Cordoba | 2023/06/05 16:00 | Leopold Zima v Sam K Baumgartner | 6-4,6-2 |
| ITF M25 Cordoba | 2023/06/05 07:00 | Jordi Domenech Castillo v Sam K Baumgartner | 2-6,6-2,3-10 |
| ITF M25 Cordoba | 2023/06/04 11:00 | Sam K Baumgartner v Pablo Carretero | 1-6,6-1,10-8 |
| ITF M25 La Nucia | 2023/05/31 09:35 | Sam K Baumgartner v Alejandro Juan Mano | 6-2,4-6,8-10 |
| ITF M25 La Nucia | 2023/05/30 08:00 | Sam K Baumgartner v Mateo Luis Alvarez Sarmiento | 7-6,6-1 |