Stadium: Court 1 Round: 54 Ground: Hardcourt outdoor
| ITF M25 Nur-Sultan | 2021/10/25 05:00 | Aliaksandr Liaonenka v Aleksandr Lobanov | 6-4,6-2 |
| ITF M25 Nur-Sultan | 2021/10/20 10:20 | Grigoriy Lomakin v Aliaksandr Liaonenka | 6-1,6-4 |
| ITF M15 Kaasan | 2021/10/14 08:30 | Sanjar Fayziev v Aliaksandr Liaonenka | 6-0,6-3 |
| ITF M15 Kaasan | 2021/10/13 11:30 | Aliaksandr Liaonenka v Alexandr Binda | 7-6,6-2 |
| ITF M15 Ulcinj | 2021/09/13 08:00 | Danilo Raicevic v Aliaksandr Liaonenka | 6-2,7-5 |
| ITF M15 Ulcinj | 2021/09/06 07:30 | Lautaro Agustin Falabella v Aliaksandr Liaonenka | 4-6,6-0,10-5 |
| ITF M15 Ulcinj | 2021/09/05 07:30 | Stefan Ivic v Aliaksandr Liaonenka | 4-6,4-6 |
| ITF M15 Telavi | 2021/08/03 09:55 | Aliaksandr Liaonenka v Julian Cash | 6-7,6-7 |
| ITF M25 Nur-Sultan | 2021/10/25 05:00 | Andrey Nelich v Ivan Zaytsev | 0-6,0-6 |
| ITF M25 Nur-Sultan | 2021/10/19 05:05 | Ivan Liutarevich v Ivan Zaytsev | 1-6,6-3,10-4 |
| ITF M25 Nur-Sultan | 2021/10/18 10:15 | Yan Brek v Ivan Zaytsev | 2-6,0-6 |
| ITF M15 Xàtiva | 2021/08/01 07:00 | Ivan Zaytsev v Vicente O Moratalla | 6-3,2-6,5-10 |
| ITF M15 Castelo Branco | 2021/07/25 08:00 | Osgar O'Hoisin v Ivan Zaytsev | 7-5,6-0 |
| ITF M25 Idanha-A-Nova | 2021/07/18 14:30 | Daniel Batista v Ivan Zaytsev | 6-3,6-4 |
| ITF M25 Idanha-A-Nova | 2021/07/12 10:30 | Yasha Zemel v Ivan Zaytsev | 6-3,6-3 |
| ITF M25 Idanha-A-Nova | 2021/07/11 08:00 | Eduardo Morais v Ivan Zaytsev | 2-6,1-6 |