| ITF M15 Monastir | 08/04 08:00 | 26 | Constantin B Kouzmine v Niki Kaliyanda Poonacha | 6-2,6-4 | |
| ITF M15 Monastir | 08/02 08:00 | 25 | Constantin B Kouzmine v Maximus Jones | 6-3,6-3 | |
| ITF M15 Monastir | 07/29 08:30 | 27 | Tao Mu v Constantin B Kouzmine | 6-2,7-6 | |
| ITF M15 Monastir | 07/28 07:55 | 26 | [475] Constantin B Kouzmine v Arthur Bouquier [306] | 6-1,6-2 | |
| ITF M15 Monastir | 07/27 09:45 | 25 | Antonio Matteo Iaquinto v Constantin B Kouzmine | 1-6,2-6 | |
| ITF M25 Uriage | 07/15 12:00 | 27 | Constantin B Kouzmine v Alex M Pujolras | 1-6,6-0,1-6 | |
| ITF M25 Uriage | 07/14 08:00 | 26 | Anton Matusevich v Constantin B Kouzmine | 6-4,2-6,3-6 | |
| ITF M25 Uriage | 07/13 08:00 | 25 | Maxime Dubouch v Constantin B Kouzmine | 1-6,0-6 | |
| ITF M15 Velenje | 07/07 07:30 | 26 | Constantin B Kouzmine v Jiri Barnat | 3-6,5-7 | |
| ITF M15 Velenje | 07/06 09:00 | 25 | Davide Galoppini v Constantin B Kouzmine | 2-6,6-1,2-6 | |
| ITF M15 Bern | 06/28 12:35 | 25 | Constantin B Kouzmine v Yan Sabanin | 6-2,6-7,1-6 | |
| ITF M25 Arlon | 06/23 08:00 | 26 | Constantin B Kouzmine v Raphael Collignon | 2-6,7-6,3-6 | |
| ITF M25 Arlon | 06/22 09:55 | 25 | Ignasi De Rueda De Genover v Constantin B Kouzmine | 3-6,2-6 | |
| ITF M25 Grasse | 06/15 13:50 | 25 | Constantin B Kouzmine v Alexey Vatutin | 3-6,7-6,2-6 | |
| ITF M25 Grasse | 06/13 15:25 | 44 | Allan Deschamps v Constantin B Kouzmine | 1-6,2-6 | |
| ITF M25 Grasse | 06/13 11:20 | 44 | Jules Leroux v Constantin B Kouzmine | 1-6,3-6 | |
| ITF M25 Grasse | 06/12 16:10 | 44 | Alexandre Leduc v Constantin B Kouzmine | 2-6,0-6 | |
| ITF M15 Sarajevo | 06/07 09:20 | 25 | Constantin B Kouzmine v Michael Vrbensky | 6-7,2-6 | |
| ITF M15 Monastir | 04/13 08:30 | 25 | Federico Agustin Gomez v Constantin B Kouzmine | Retired | |
| ITF M25 Monastir | 04/11 14:00 | 62 | Constantin Bittoun Kouzmine v Filippo Martini | 6-1,6-4 | |
| ITF M25 Monastir | 04/11 09:00 | 62 | Constantin Bittoun Kouzmine v Yunseok Jang | 6-1,6-4 | |
| ITF M25 Monastir | 04/10 11:00 | 62 | Constantin Bittoun Kouzmine v Sven Corbinais | 6-1,6-0 | |
| ITF M15 New Delhi | 03/23 07:45 | 25 | Constantin B Kouzmine v Maks Kasnikowski | 4-6,2-6 | |
| ITF M15 Bengaluru | 03/16 08:30 | 25 | Julian Cash v Constantin B Kouzmine | 7-6,6-4 | |
| ITF M15 Bhopal | 03/08 04:25 | 25 | Constantin B Kouzmine v Niki Kaliyanda Poonacha | 2-6,6-2,4-6 | |
| Challenger Turin | 02/27 09:00 | 45 | Constantin B Kouzmine v Evan King | Cancelled | |
| ITF M25 Cancun | 02/17 19:45 | 26 | Constantin B Kouzmine v Lucas Gerch | 5-7,6-3,6-7 | |
| ITF M25 Cancun | 02/16 19:35 | 25 | Filip Peliwo v Constantin B Kouzmine | 2-6,1-6 | |
| ITF M25 Cancun | 02/14 22:10 | 44 | Alejandro H Franco v Constantin B Kouzmine | 4-6,4-6 | |
| ITF M25 Cancun | 02/14 19:55 | 44 | Enzo F Tessari v Constantin B Kouzmine | 4-6,0-6 |