Stadium: Court 4 Round: 54 Ground: Hardcourt outdoor
| ITF M15 Nur-Sultan | 2021/02/01 07:30 | Ivan Liutarevich v Ivan Zaytsev | 6-3,6-4 |
| ITF M15 Shymkent | 2021/06/02 07:20 | Alexandr Binda v Ivan Liutarevich | 3-6,7-5,6-3 |
| ITF M15 Shymkent | 2021/05/28 05:00 | Ivan Liutarevich v Damien Wenger | 0-6,3-6 |
| ITF M15 Shymkent | 2021/05/27 05:00 | Markos Kalovelonis v Ivan Liutarevich | 4-6,6-3,6-7 |
| ITF M15 Shymkent | 2021/05/25 10:45 | Yerassyl Murat v Ivan Liutarevich | 5-7,0-6 |
| ITF M15 Shymkent | 2021/04/14 11:15 | Ivan Liutarevich v Ivan Gakhov | 2-6,4-6 |
| ITF M15 Shymkent | 2021/04/07 06:45 | Ivan Liutarevich v Andrey Chepelev | 0-6,0-6 |
| ITF M15 Kazan | 2021/03/09 09:30 | Ivan Liutarevich v Alexander Stepin | 4-6,1-6 |
| ITF M15 Kazan | 2021/03/08 09:45 | Ivan Liutarevich v Alexander Chepik | 6-4,6-2 |
| ITF M15 Shymkent | 2021/04/12 03:55 | Felipe Mikkelsen v Ivan Zaytsev | 6-3,6-1 |
| ITF M15 Shymkent | 2021/04/06 05:30 | Bulat Galiev v Ivan Zaytsev | 7-6,6-4 |
| ITF M15 Shymkent | 2021/04/05 08:45 | Roman Konovalov v Ivan Zaytsev | 0-6,0-6 |
| ITF M15 Antalya | 2021/03/15 08:30 | Ivan Zaytsev v Sidane Pontjodikromo | 2-6,4-6 |
| ITF M15 Antalya | 2021/03/14 07:00 | Jim Walder v Ivan Zaytsev | 4-6,2-6 |
| ITF M15 Antalya | 2021/03/07 07:00 | Denis Parshutin v Ivan Zaytsev | 6-4,6-3 |
| ITF M15 Nur-Sultan | 2021/02/08 04:00 | Matteo Arnaldi v Ivan Zaytsev | 6-2,6-3 |
| ITF M15 Nur-Sultan | 2021/02/01 07:30 | Ivan Liutarevich v Ivan Zaytsev | 6-3,6-4 |