| ITF Belgium F3 Qual | 07/01 16:00 | 62 | Constant De La Bassetiere v Dane Esses | 6-1,6-1 | |
| ITF Belgium F2 | 06/29 08:00 | 26 | Constant De La Bassetiere v Miomir Kecmanovic | 2-6,2-6 | |
| ITF Belgium F2 | 06/28 14:00 | 25 | Constant De La Bassetiere v Benjamin Dhoe | 6-3,2-6,7-6 | |
| ITF Belgium F2 Qual | 06/26 08:00 | 44 | Constant De La Bassetiere v Louis Van Herck | 6-0,6-2 | |
| ITF Belgium F2 Qual | 06/25 09:35 | 44 | Constant De La Bassetiere v Simon Beaupain | 6-3,4-6,6-1 | |
| ITF Belgium F1 | 06/22 09:00 | 26 | Constant De La Bassetiere v Samuel Bensoussan | 2-6,5-7 | |
| ITF Belgium F1 | 06/20 16:00 | 25 | Johannes Ingildsen v Constant De La Bassetiere | 6-1,4-6,3-6 | |
| ITF Belgium F1 Qual | 06/19 10:30 | 44 | Constant De La Bassetiere v Marcelo Plaza | 7-6,6-2 | |
| ITF Belgium F1 Qual | 06/18 16:50 | 44 | Constant De La Bassetiere v Nicolas De Plaen | 6-3,6-3 | |
| ITF Italy F17 | 06/11 13:20 | 54 | Alexander Ritschard v Constant De La Bassetiere | 6-1,3-6,6-2 | |
| ITF Italy F17 | 06/10 15:55 | 54 | Andrea Di Meo v Constant De La Bassetiere | 1-6,4-6 | |
| ITF Italy F16 Qual | 06/04 08:30 | 44 | Manfred Fellin v Constant De La Bassetiere | 6-4,4-6,6-1 | |
| ITF France F15 | 07/22 09:00 | 27 | Constant De La Bassetiere v Jonathan Eysseric | 3-6,2-6 | |
| ITF France F15 | 07/20 12:30 | 26 | Constant De La Bassetiere v Loic Perret | 6-3,6-1 | |
| ITF France F15 | 07/19 10:10 | 25 | Marcos Giraldi Requena v Constant De La Bassetiere | 4-6,4-6 | |
| ITF France F22 | 10/13 16:30 | 25 | Tak Khunn Wang v Constant De La Bassetiere | 4-6,6-1,6-4 | |
| ITF France F21 Qual | 10/04 12:15 | 54 | Lucas Catarina v Constant De La Bassetiere | 7-6,6-7,6-4 | |
| ITF France F21 Qual | 10/03 11:50 | 54 | Osgar O'Hoisin v Constant De La Bassetiere | 6-1,5-7,3-6 | |
| ITF France F15 | 07/21 15:10 | - | Maxime Tabatruong v Constant De La Bassetiere | 6-3,6-1 | |
| ITF France F5 Qual | 03/08 09:00 | - | Ronan Joncour v Constant De La Bassetiere | 7-6,6-4 | |
| ITF France F5 Qual | 03/07 13:00 | - | Constant De La Bassetiere v Luis Diego Chavez Villalpando | 6-4,6-3 | |
| ITF France F4 Qual | 02/28 10:40 | - | Constant De La Bassetiere v Mubarak Shannan Zayid | 6-3,6-1 | |
| ITF Turkey F43 | 12/03 10:35 | - | Constant De La Bassetiere v Geoffrey Blancaneaux | 3-6,2-6 | |
| ITF Turkey F43 | 11/29 07:00 | - | Adriaan De Jager v Constant De La Bassetiere | 4-6,3-6 | |
| ITF France F21 Qual | 09/28 12:25 | - | Lofo Ramiaramanana v Constant De La Bassetiere | 6-3,4-6,6-4 | |
| ITF France F20 Qual | 09/20 07:00 | - | Kelsey Stevenson v Constant De La Bassetiere | 4-6,6-3,6-2 | |
| ITF France F16 | 07/23 15:30 | - | Ronan Joncour v Constant De La Bassetiere | 0-6,6-4,6-1 |