Stadium: Court 2 Round: 25 Ground: Clay
| Challenger Puerto Vallarta | 2021/11/21 16:00 | Dennis Novikov v Liam Draxl | 3-6,1-6 |
| Challenger Knoxville | 2021/11/07 15:00 | JC Aragone v Dennis Novikov | 6-2,6-2 |
| ITF M15 Naples | 2021/10/14 16:00 | Dennis Novikov v Jake Van Emburgh | 3-6,6-3,3-6 |
| ITF M15 Naples | 2021/10/13 19:55 | Dennis Novikov v William Grant | 6-3,5-7,6-2 |
| Challenger Cary | 2021/07/18 18:20 | Aleksandar Kovacevic v Dennis Novikov | 7-6,7-6 |
| Challenger Cleveland | 2021/03/15 17:05 | Dennis Novikov v Evan Song | 3-6,6-3,0-6 |
| ITF M25 Naples | 2021/02/24 18:00 | Dennis Novikov v Cristian Rodriguez | 1-6,2-6 |
| ITF M25 Naples | 2021/02/23 15:00 | Dennis Novikov v Benjamin Dhoe | 6-2,2-6,10-7 |
| ATP Stockholm | 2021/11/06 13:35 | Jonathan Mridha v Denis Istomin | 6-2,3-6,4-6 |
| ITF M25 Lima | 2021/10/16 16:40 | Gilbert S K Junior v Jonathan Mridha | 6-4,6-3 |
| ITF M25 Lima | 2021/10/15 15:00 | Gonzalo Villanueva v Jonathan Mridha | 5-7,6-7 |
| ITF M25 Lima | 2021/10/14 16:45 | Duilio Vallebuona v Jonathan Mridha | 0-6,1-6 |
| ITF M25 Lima | 2021/10/13 20:45 | Arklon H D Pino v Jonathan Mridha | 4-6,3-6 |
| Challenger Santiago | 2021/10/04 16:00 | Oliver Crawford v Jonathan Mridha | 7-5,6-3 |
| Challenger Santiago | 2021/10/03 19:55 | Jonathan Mridha v Evan King | 6-3,3-6,6-0 |
| Challenger Murcia | 2021/09/27 09:00 | Emilio Nava v Jonathan Mridha | 6-4,7-5 |