Stadium: Court 3 Round: 54 Ground: Clay
| ITF M25 Vero Beach | 2021/10/18 16:00 | Adam Jones v Diogo Marques | 6-3,3-6,1-10 |
| ITF M15 Almada | 2021/07/06 08:30 | Diogo Marques v Ben Patael | 3-6,5-7 |
| ITF M15 Setubal | 2020/10/07 13:55 | Diogo Marques v Naoki Nakagawa | 3-6,1-6 |
| FPT Portugal Series | 2020/07/06 09:30 | Diogo Marques v Fabio Coelho | 3-6,6-7 |
| FPT Portugal Series | 2020/06/30 20:14 | Pedro Araujo v Diogo Marques | 6-3,4-6,6-3 |
| FPT Portugal Series | 2020/06/30 11:00 | Leandro Mattar v Diogo Marques | 5-7,2-6 |
| FPT Portugal Series | 2020/06/29 13:00 | Diogo Marques v Illia Stoliar | 7-6,6-3 |
| ITF M25 Porto | 2019/07/23 10:30 | Diogo Marques v Paulo Fernandes | 1-6,7-6,8-10 |
| ITF M25 Vero Beach | 2021/10/18 16:00 | Nikolay Sysoev v Jordan Parker | 6-2,6-7,10-7 |
| ITF M15 Naples | 2021/10/12 13:30 | Tristan McCormick v Nikolay Sysoev | 4-6,6-4,10-5 |
| ITF M15 Naples | 2021/10/11 14:30 | Xavier Lawrence v Nikolay Sysoev | 7-6,3-6,3-10 |
| ITF M15 Naples | 2021/10/07 13:30 | Nikolay Sysoev v Juan Ignacio Galarza | 1-6,1-6 |
| ITF M15 Naples | 2021/10/06 13:30 | Nikolay Sysoev v Fletcher Scott | 6-4,6-4 |
| ITF M15 Naples | 2021/10/05 13:30 | Jake Krug v Nikolay Sysoev | 6-4,2-6,6-10 |
| ITF M15 Naples | 2021/10/04 14:00 | Parth Aggarwal v Nikolay Sysoev | 2-6,5-7 |
| UTR Pro Tennis Series Florida | 2021/09/19 15:30 | Nikolay Sysoev v Timothy Phung | 7-5,1-6,5-3 |