| ITF M15 Monastir | 03/29 10:55 | 25 | [390] Constantin B Kouzmine v Ray Ho [272] | 3-6,5-7 | |
| Challenger St Brieuc | 03/21 13:50 | 25 | [390] Constantin B Kouzmine v Alibek Kachmazov [367] | 5-7,6-1,4-6 | |
| Challenger St Brieuc | 03/20 11:25 | 19 | [390] Constantin B Kouzmine v Albano Olivetti [66] | 6-7,6-4,7-6 | |
| Challenger St Brieuc | 03/19 10:55 | 14 | [386] Constantin B Kouzmine v Davide Pozzi [356] | 6-0,6-3 | |
| ITF M15 Poitiers | 03/15 16:15 | 25 | Jimmy Yang v Constantin B Kouzmine | 6-4,4-6,6-2 | |
| ITF M15 Creteil | 03/10 13:35 | 27 | Andrea Guerrieri v Constantin B Kouzmine | 6-7,6-3,7-5 | |
| ITF M15 Creteil | 03/09 17:20 | 26 | Constantin B Kouzmine v Florian Broska | 6-4,6-7,6-2 | |
| ITF M15 Creteil | 03/07 13:40 | 25 | Constantin B Kouzmine v Loann Massard | 6-1,6-4 | |
| Challenger Pau | 02/26 13:50 | 14 | [271] Bu Yunchaokete v Constantin B Kouzmine [388] | 6-2,6-4 | |
| ITF M15 Monastir | 02/23 09:00 | 26 | Kokoro Isomura v Constantin B Kouzmine | 6-4,4-6,6-4 | |
| ITF M15 Monastir | 02/22 11:05 | 25 | Aoran Wang v Constantin B Kouzmine | 3-6,2-6 | |
| Challenger Cherbourg | 02/12 11:50 | 14 | [389] Constantin B Kouzmine v Denis Yevseyev [329] | 3-6,6-7 | |
| Challenger Tenerife Qual | 02/05 14:20 | 14 | [311] Shintaro Mochizuki v Constantin B Kouzmine [369] | 6-3,6-2 | |
| ITF M15 Monastir | 02/02 09:00 | 26 | Yi Zhou v Constantin B Kouzmine | 6-4,6-3 | |
| ITF M15 Monastir | 02/01 09:00 | 25 | Raffael Schaer v Constantin B Kouzmine | 2-6,0-6 | |
| ITF M15 Bagnoles-de-l'Orne | 01/28 15:20 | 28 | Sean Cuenin v Constantin B Kouzmine | 6-4,6-4 | |
| ITF M15 Bagnoles-de-l'Orne | 01/27 17:20 | 27 | Adrien Gobat v Constantin B Kouzmine | 3-6,4-6 | |
| ITF M15 Bagnoles-de-l'Orne | 01/26 10:00 | 26 | Lucas Bouquet v Constantin B Kouzmine | 3-6,2-6 | |
| ITF M15 Bagnoles-de-l'Orne | 01/25 10:00 | 25 | Lukas H Lilleengen v Constantin B Kouzmine | 2-6,6-3,3-6 | |
| ITF M15 Monastir | 12/11 08:45 | 29 | Constantin B Kouzmine v Dino Prizmic | 2-6,5-7 | |
| ITF M15 Monastir | 12/10 11:00 | 28 | [273] Arthur Bouquier v Constantin B Kouzmine [369] | 3-6,6-7 | |
| ITF M15 Monastir | 12/09 08:30 | 27 | Constantin B Kouzmine v Raphael Lambling | 6-4,6-3 | |
| ITF M15 Monastir | 12/08 08:25 | 26 | Constantin B Kouzmine v Wissam Abderrahman | 6-0,6-4 | |
| ITF M15 Monastir | 12/07 13:30 | 25 | Constantin B Kouzmine v Hamzeh Al-Aswad | 6-1,6-2 | |
| ITF M15 Monastir | 12/03 08:30 | 28 | Alexis Gautier v Constantin B Kouzmine | 6-4,6-3 | |
| ITF M15 Monastir | 12/02 08:30 | 27 | Constantin B Kouzmine v Adrian Oetzbach | 6-4,6-1 | |
| ITF M15 Monastir | 12/01 10:30 | 26 | Constantin B Kouzmine v Raphael Lambling | 3-6,7-5,6-4 | |
| ITF M15 Monastir | 11/30 14:55 | 25 | [387] Constantin B Kouzmine v Maximus Jones [441] | 6-3,6-3 | |
| ITF M15 Monastir | 11/27 08:30 | 29 | Jarno Jans v Constantin B Kouzmine | 1-6,4-6 | |
| ITF M15 Monastir | 11/26 09:30 | 28 | Constantin B Kouzmine v Gabriele Moghini | 6-4,6-4 |