| ITF M25 - Nur-Sultan | 03/02 07:00 | 25 | Matvey Minin v Grigoriy Korobeynikov | 6-1,6-2 | |
| ITF M25 - Nur-Sultan | 02/21 07:45 | 54 | Maxim Ratniuk v Grigoriy Korobeynikov | 6-2,6-3 | |
| ITF M15 - Nules | 11/14 11:00 | 44 | Juan C Garcia Garcia v Grigoriy Korobeynikov | 3-6,6-4,11-9 | |
| ITF M25 - Madrid | 10/25 09:30 | 44 | Pedro Rodenas v Grigoriy Korobeynikov | 6-0,6-0 | |
| ITF M15 - Girona | 10/17 08:00 | 62 | Grigoriy Korobeynikov v Kuzey Cekirge | 0-6,5-7 | |
| ITF M15 - Platja D'Aro | 10/10 11:00 | 62 | Grigoriy Korobeynikov v Giuseppe Tresca | 2-6,3-6 | |
| ITF M15 - Platja D'Aro | 10/03 09:30 | 62 | Grigoriy Korobeynikov v Edas Butvilas | 3-6,2-6 | |
| ITF M15 - Xativa | 08/02 10:00 | 62 | Xavi Matas Ortega v Grigoriy Korobeynikov | 6-0,6-0 | |
| ITF M15 - Xativa | 08/01 13:00 | 62 | Lawrence Bataljin v Grigoriy Korobeynikov | 7-5,2-6,8-10 | |
| ITF M15 - Shymkent | 06/01 05:00 | 54 | Yaraslav Shyla v Grigoriy Korobeynikov | 6-0,7-5 | |
| ITF M15 - Shymkent | 05/31 05:00 | 54 | Rail Ibragimov v Grigoriy Korobeynikov | 4-6,4-6 | |
| ITF M15 - Shymkent | 05/25 06:00 | 54 | Olimjon Nabiev v Grigoriy Korobeynikov | 6-1,6-4 | |
| ITF M15 - Shymkent | 05/24 04:00 | 54 | Arystanbek Kaparov v Grigoriy Korobeynikov | 1-6,1-6 | |
| ITF M15 - Benicarlo | 11/22 14:00 | 62 | Alexander Weis v Grigoriy Korobeynikov | 6-2,7-5 | |
| ITF M15 - Loule | 03/08 14:00 | 44 | Leonardo Civita-Telles v Grigoriy Korobeynikov | 6-2,6-4 | |
| ITF M15 - Faro | 03/01 13:00 | 44 | Marvin Moeller v Grigoriy Korobeynikov | 6-2,6-2 | |
| ITF M15 - Antalya | 02/11 08:30 | 44 | Leyton Rivera v Grigoriy Korobeynikov | 6-0,6-2 | |
| ITF M15 - Antalya | 02/02 12:30 | 44 | Kazuki Shimizu v Grigoriy Korobeynikov | 7-6,6-2 | |
| ITF M15 - Heraklion | 11/17 07:30 | 44 | Grigoriy Korobeynikov v Martin Van Der Meerschen | Retired | |
| ITF M15 - Heraklion | 11/10 07:30 | 44 | Martin Dimitrov v Grigoriy Korobeynikov | 6-3,6-4 | |
| ITF M15 - Castellon | 11/05 10:00 | 44 | Grigoriy Korobeynikov v Luis Diego Chavez Villalpando | 6-4,3-6,7-10 | |
| ITF M15 - Castellon | 11/04 13:30 | 44 | Grigoriy Korobeynikov v Filippo Giovannini | 6-2,6-1 | |
| ITF M15 - Castellon | 11/03 12:00 | 44 | Luis Faria v Grigoriy Korobeynikov | Retired | |
| ITF M15 - Nules | 10/28 08:30 | 44 | Juan Ignacio Alcalde v Grigoriy Korobeynikov | 6-3,6-4 | |
| ITF M15 - Bukhara | 10/16 08:40 | 25 | Sergey Shipilov v Grigoriy Korobeynikov | 6-2,6-1 | |
| ITF M15 - Karshi | 10/10 07:00 | 26 | Sanjar Fayziev v Grigoriy Korobeynikov | 6-2,6-4 | |
| ITF M15 - Karshi | 10/09 09:00 | 25 | Martin Borisiouk v Grigoriy Korobeynikov | 4-6,4-6 | |
| ITF M15 - Karshi | 10/08 06:25 | 54 | Timur Sottimov v Grigoriy Korobeynikov | 6-2,4-6,11-13 | |
| ITF M15 - Karshi | 10/07 06:20 | 54 | Muhammadmustafo Abdurakhmonov v Grigoriy Korobeynikov | 0-6,2-6 | |
| ITF M25 - Almaty | 09/26 08:15 | 26 | Grigoriy Korobeynikov v Manuel Guinard | 6-7,3-6 |