| Challenger Gran Canaria | 03/02 10:00 | 25 | [219] Constant Lestienne v Carlos Gimeno Valero [400] | Retired | |
| Challenger Gran Canaria | 02/25 15:20 | 26 | [217] Constant Lestienne v Nikola Milojevic [149] | 2-6,4-6 | |
| Challenger Gran Canaria | 02/23 12:20 | 25 | [217] Constant Lestienne v Adrian M-Maceiras [261] | 6-1,6-4 | |
| Challenger Biella | 02/17 12:25 | 26 | [221] Constant Lestienne v Evgeny Donskoy [123] | 4-6,2-6 | |
| Challenger Biella | 02/16 13:00 | 25 | Constant Lestienne v Luca Nardi | 5-7,7-6,7-6 | |
| Challenger Biella | 02/15 11:45 | 19 | [221] Constant Lestienne v Malek Jaziri [255] | 6-3,6-2 | |
| Challenger Biella Qual | 02/14 16:05 | 14 | [221] Constant Lestienne v Alessandro Bega [350] | 6-3,6-3 | |
| Challenger Cherbourg | 02/12 14:50 | 27 | [138] Arthur Rinderknech v Constant Lestienne [221] | 7-6,7-6 | |
| Challenger Cherbourg | 02/11 15:15 | 26 | [221] Constant Lestienne v Matteo Martineau [422] | 6-3,6-4 | |
| Challenger Cherbourg | 02/09 17:40 | 25 | Constant Lestienne v Titouan Droguet | 1-6,6-1,6-2 | |
| Challenger Quimper | 01/29 16:00 | 27 | [227] Constant Lestienne v Brandon Nakashima [163] | 4-6,5-7 | |
| Challenger Quimper | 01/27 18:50 | 26 | [227] Constant Lestienne v Denis Istomin [183] | 6-4,6-4 |