Stadium: Court 2 Round: 62 Ground: Clay
| ITF M15 Kazan | 2021/11/23 09:00 | Ivan Denisov v Andrey Uvarov | 3-6,6-7 |
| ITF M15 Kazan | 2021/11/22 12:05 | Ivan Denisov v Egor Khotchenkov | 6-2,6-3 |
| UTR Pro Tennis Series Amsterdam | 2021/11/06 15:00 | Benjamin Dhoe v Ivan Denisov | 7-5,6-0 |
| UTR Pro Tennis Series Amsterdam | 2021/11/04 10:30 | Ivan Denisov v Rik Muller | 6-3,5-1 |
| UTR Pro Tennis Series Amsterdam | 2021/11/03 13:30 | Ivan Denisov v Edison Ambarzumjan | 6-2,6-3 |
| UTR Pro Tennis Series Amsterdam | 2021/11/02 09:00 | Ivan Denisov v Deney Wassermann | 6-2,4-6,3-6 |
| UTR Pro Tennis Series Amsterdam | 2021/11/01 09:00 | Ivan Denisov v Michiel de Krom | 3-6,3-5 |
| ITF M25 Nur-Sultan | 2021/10/28 07:15 | Filip Peliwo v Ivan Denisov | 7-5,6-2 |
| ITF M15 Cairo | 2021/11/23 08:00 | Tommaso Roggero v Guelfo Baldovinetti | 6-2,6-1 |
| ITF M15 Parnu | 2021/10/25 07:00 | Guelfo Baldovinetti v Finn Bischof | 3-6,3-6 |
| ITF M15 Cairo | 2021/05/02 09:00 | Simon A Ivanov v Guelfo Baldovinetti | 6-3,6-4 |