Stadium: Court 4 Round: 54 Ground: Clay
| ITF M25 Sion | 2023/08/27 08:00 | Tanner, Gian Luca v Sacha Ouzilou | 6-0,6-1 |
| ITF M25 Muttenz | 2023/08/15 14:05 | Tanner, Gian Luca v Florent Bax | 1-6,4-6 |
| ITF M15 Metzingen | 2023/07/28 13:35 | Tanner, Gian Luca v Liam Gavrielides | 6-3,5-7,3-6 |
| ITF M15 Metzingen | 2023/07/25 11:00 | Tom Gentzsch v Tanner, Gian Luca | 2-6,4-6 |
| ITF M15 Metzingen | 2023/07/24 12:00 | Louroi Martinez v Tanner, Gian Luca | 1-6,4-6 |
| ITF M15 Metzingen | 2023/07/23 12:00 | Tanner, Gian Luca v Noah Schlagenhauf | 2-6,6-1,10-3 |
| ITF M25 Klosters | 2023/07/05 15:05 | Benjamin Lock v Tanner, Gian Luca | 6-2,2-6,6-4 |
| ITF M25 Klosters | 2023/07/03 12:45 | Tanner, Gian Luca v Raffael Schaer | 7-5,6-0 |
| ITF M25 Sion | 2023/08/27 08:00 | Arthur Laborde v Brun, Thomas George | 6-3,4-6,5-10 |
| ITF M15 Caslano | 2023/08/20 09:25 | Andrea Militi Ribaldi v Brun, Thomas George | 6-0,7-6 |
| ITF M25 Muttenz | 2023/08/14 08:00 | Brun, Thomas George v Maurus Malgiaritta | 0-6,1-6 |
| ITF M25 Esch/Alzette Qual | 2023/07/16 12:00 | Muller, Rik v Brun, Thomas George | 6-2,6-3 |
| ITF M25 Esch/Alzette | 2023/07/10 09:35 | Alexander Stater v Brun, Thomas George | 6-2,6-0 |
| ITF M25 Esch/Alzette | 2023/07/09 10:00 | Finn Pauly v Brun, Thomas George | 2-6,0-6 |
| ITF M25 Klosters | 2023/07/02 13:45 | Manfredi Graziani v Brun, Thomas George | 6-2,6-2 |
| ITF M15 Wroclaw | 2023/06/25 10:30 | Piotr Czaczkowski v Brun, Thomas George | 6-4,6-1 |