| ITF M15 Chornomorsk | 09/22 07:30 | 44 | Oleksandr Varichenko v Mykhaylo Muravyov | 6-2,0-6,7-10 | |
| ITF M25 Irpin | 08/26 12:00 | 44 | Ivan Sergeyev v Oleksandr Varichenko | 6-3,6-1 | |
| ITF M25 Irpin | 08/25 09:30 | 44 | Egor Matvievici v Oleksandr Varichenko | 5-7,3-6 | |
| ITF Ukraine F4 | 08/27 07:00 | 62 | Roman Boychuk v Oleksandr Varichenko | 6-2,6-1 | |
| ITF Ukraine F4 | 08/26 07:00 | 62 | Constantinos Papavasiliou v Oleksandr Varichenko | 0-6,3-6 | |
| ITF Ukraine F4 | 08/25 07:00 | 62 | Oleksandr Varichenko v Yuriy Kryvoy | 6-2,1-6,7-5 | |
| ITF Ukraine F3 | 05/22 12:35 | 25 | Jordan Correia v Oleksandr Varichenko | 6-2,6-4 | |
| ITF Ukraine F3 | 05/20 07:00 | 62 | Oleksandr Varichenko v Nazar Achour | 6-4,6-3 | |
| ITF Ukraine F3 | 05/19 09:30 | 62 | Dmytro Slyepkan v Oleksandr Varichenko | 1-6,0-6 | |
| ITF Ukraine F2 | 05/14 07:00 | 62 | Yan Bondarevskiy v Oleksandr Varichenko | 6-2,6-2 | |
| ITF Ukraine F2 | 05/13 07:00 | 62 | Aleksandr Braynin v Oleksandr Varichenko | 4-6,4-6 | |
| ITF Ukraine F2 | 05/12 06:30 | 62 | Mauricio A-Guzman v Oleksandr Varichenko | 6-7,1-6 | |
| ITF Ukraine F1 | 05/08 07:00 | 25 | Oleksandr Varichenko v Mykola Leshchynskyy | 4-6,2-6 | |
| ITF Ukraine F1 | 05/07 07:00 | 44 | Mykyta Riepkin v Oleksandr Varichenko | 1-6,4-6 | |
| ITF Ukraine F1 | 05/05 09:30 | 44 | Svyatoslav Ilnytskyy v Oleksandr Varichenko | 4-6,7-6,3-6 | |
| ITF Ukraine F5 | 09/02 07:00 | 44 | Ivan Nedelko v Oleksandr Varichenko | 6-2,6-2 | |
| ITF Ukraine F4 | 08/27 13:00 | 62 | Samuel Hodor v Oleksandr Varichenko | 6-3,0-6,7-6 | |
| ITF Turkey F27 | 07/23 07:00 | 62 | Valentin Vanta v Oleksandr Varichenko | 6-3,6-0 | |
| ITF Georgia F1 | 07/02 09:30 | 44 | Oleksandr Varichenko v Alexey Baryshev | 6-7,1-6 | |
| ITF Ukraine F3 | 05/20 07:00 | 44 | Nikita Mashtakov v Oleksandr Varichenko | 6-4,7-5 | |
| ITF Ukraine F2 | 05/16 06:30 | 44 | Oleksandr Varichenko v Alberto Berbegal Moreno | 6-2,2-6,1-6 | |
| ITF Ukraine F2 | 05/13 07:00 | 44 | Bogdan Didenko v Oleksandr Varichenko | 3-6,1-6 | |
| ITF Ukraine F1 | 05/07 06:30 | 44 | Oleksandr Varichenko v Egor Baklanov | 6-0,6-4 | |
| ITF Turkey F3 | 01/21 07:00 | 62 | Oleksandr Varichenko v Daniiar Duldaev | 1-6,3-6 | |
| ITF Turkey F2 | 01/16 13:45 | 44 | Oleksandr Varichenko v Luke Johnson | 4-6,6-2,5-7 | |
| ITF Turkey F1 | 01/08 10:30 | 54 | Amaury Delmas v Oleksandr Varichenko | 6-4,7-6 | |
| ITF Turkey F1 | 01/07 09:00 | 54 | Alexandru Ionel Stroe v Oleksandr Varichenko | 3-6,5-7 | |
| ITF Ukraine F4 Qual | 09/19 08:00 | 44 | Denis Milchenko v Oleksandr Varichenko | 1-6,6-2,7-5 | |
| ITF Ukraine F2 | 05/18 08:00 | 25 | Johan Sebastien Tatlot v Oleksandr Varichenko | 6-1,6-0 | |
| ITF Ukraine F2 | 05/16 07:00 | 44 | Vladyslav Lobak v Oleksandr Varichenko | Retired |