| ITF M25 Nevers | 10/04 09:00 | 54 | Constantin B Kouzmine v Hendrik Jebens | 6-3,6-2 | |
| ITF M15 Vyshkovo | 09/22 12:45 | 25 | Illya Beloborodko v Constantin B Kouzmine | 7-6,6-4 | |
| ITF M15 Sozopol | 09/14 10:00 | 25 | Valentin Vacherot v Constantin B Kouzmine | 6-3,5-7,6-4 | |
| ITF M15 Zilina | 09/02 10:55 | 26 | Constantin B Kouzmine v Fabian Marozsan | 6-7,4-6 | |
| ITF M15 Zilina | 09/01 09:55 | 25 | Kristof Minarik v Constantin B Kouzmine | 4-6,2-6 | |
| ITF M25 Ueberlingen | 08/18 14:10 | 25 | Milan Welte v Constantin B Kouzmine | 6-4,6-0 | |
| ITF M15 Cairo | 08/05 09:20 | 26 | Lukas Krainer v Constantin B Kouzmine | 6-1,6-2 | |
| ITF M15 Cairo | 08/04 07:30 | 25 | Gabriele Maria Noce v Constantin B Kouzmine | 0-6,6-3,4-6 | |
| ITF M15 Cairo | 08/03 07:30 | 62 | Constantin B Kouzmine v Thiago Cigarran | 6-1,4-6,10-8 | |
| ITF M15 Cairo | 08/02 08:30 | 62 | Constantin Bittoun Kouzmine v Tobias Franco | 6-2,6-0 | |
| ITF M15 Cairo | 08/01 09:00 | 62 | Constantin Bittoun Kouzmine v Edoardo Zanada | 6-3,4-6,10-8 | |
| ITF M15 Cairo | 07/26 08:00 | 62 | Constantin Bittoun Kouzmine v Samuele Pieri | 6-7,3-6 | |
| ITF M15 Cairo | 07/25 08:00 | 62 | Constantin Bittoun Kouzmine v Ashraf El Sayed | 6-0,6-1 | |
| ITF M15 Cairo | 07/22 08:00 | 26 | Constantin B Kouzmine v Oleksandr Ovcharenko | 4-6,2-6 | |
| ITF M15 Cairo | 07/21 08:00 | 25 | Constantin B Kouzmine v Ammar Alhaqbani | 4-6,7-5,6-2 | |
| ITF M25 Velenje | 07/07 08:00 | 25 | Oscar Jose Gutierrez v Constantin B Kouzmine | 4-6,6-3,6-4 | |
| ITF M25 Velenje | 07/06 08:00 | 44 | Constantin B Kouzmine v Lukas Palovic | 6-2,2-6,10-8 | |
| ITF M25 Velenje | 07/05 11:10 | 44 | Constantin B Kouzmine v Gustaf Strom | Retired | |
| ITF M25 Velenje | 07/04 07:30 | 44 | Constantin Bittoun Kouzmine v Francisco Vittar | 7-5,6-1 | |
| ITF M25 The Hague | 07/01 17:00 | 26 | Constantin B Kouzmine v Tim Van Rijthoven | 5-7,4-6 | |
| ITF M25 The Hague | 07/01 07:30 | 25 | Sidane Pontjodikromo v Constantin B Kouzmine | 6-7,2-6 | |
| ITF M25 The Hague | 06/28 07:55 | 54 | Dominik Palan v Constantin B Kouzmine | 6-2,2-6,6-10 | |
| ITF M25 The Hague | 06/27 08:00 | 54 | Roland Stuurman v Constantin Bittoun Kouzmine | 2-6,1-6 | |
| ITF M25 Alkmaar | 06/20 17:00 | 54 | Constantin Bittoun Kouzmine v Michiel de Krom | 3-6,3-6 | |
| ITF M15 Monastir | 05/19 13:05 | 25 | Constantin B Kouzmine v Yusuke Takahashi | 3-6,0-6 | |
| ITF M15 Monastir | 05/17 12:30 | 62 | Taisei Ichikawa v Constantin Bittoun Kouzmine | 7-6,3-6,9-11 | |
| ITF M15 Monastir | 05/17 08:00 | 62 | Mehdi Benchakroun v Constantin Bittoun Kouzmine | 0-6,4-6 | |
| ITF M15 Monastir | 05/16 10:00 | 62 | Lisandru Rodriguez v Constantin Bittoun Kouzmine | 2-6,0-6 | |
| ITF M15 Monastir | 05/10 08:00 | 62 | Dong Ju Kim v Constantin Bittoun Kouzmine | 4-6,6-4,10-5 | |
| ITF M15 Monastir | 05/09 10:00 | 62 | Victorio Marquiselli v Constantin Bittoun Kouzmine | 3-6,5-7 |