| ITF M15 Parnu | 2019/07/15 13:00 | Roberts Grinvalds v Roni Mikael Hietaranta | 2-6,6-0,7-10 |
| ITF M15 Vilnius | 2019/07/08 07:00 | Mateusz Terczynski v Roberts Grinvalds | 7-6,6-2 |
| ITF USA F30 | 2018/11/07 16:45 | Juan A H Serrano v Roberts Grinvalds | 6-4,6-2 |
| ITF USA F29 | 2018/10/27 16:30 | Roberts Grinvalds v Timo Stodder | 3-6,6-4,3-6 |
| ITF Latvia F1 | 2018/08/02 10:40 | Ronald Slobodchikov v Roberts Grinvalds | 3-6,6-4,6-3 |
| ITF Latvia F1 | 2018/08/01 07:00 | Roberts Grinvalds v Ivan Liutarevich | 6-1,6-1 |
| ITF Latvia F1 | 2018/07/31 10:00 | Daniel Soyfer v Roberts Grinvalds | 6-3,3-6,4-6 |
| ITF Latvia F1 | 2018/07/29 07:00 | Roberts Grinvalds v Tomas Vaise | 4-6,6-3,6-4 |
| UTR Pro Tennis Series Atlanta | 2021/04/15 15:30 | Jose Antonio Dugo Reyes v William Griffith | 1-6,0-6 |
| UTR Pro Tennis Series Atlanta | 2021/04/14 18:30 | Jose Antonio Dugo Reyes v Jonny Ho | 4-6,2-6 |
| UTR Pro Tennis Series Atlanta | 2021/04/13 18:30 | Jose Antonio Dugo Reyes v Matthew Segura | 3-6,2-6 |
| UTR Pro Tennis Series Atlanta | 2021/04/12 12:30 | Jose Antonio Dugo Reyes v Nicholas Heng | 0-6,6-7 |
| ITF M25 Palma del Rio | 2019/06/25 16:30 | Ruan Roelofse v Jose Antonio Dugo Reyes | 6-2,7-5 |
| ITF Portugal F21 | 2017/10/03 09:00 | Jose Antonio Dugo Reyes v Erik Crepaldi | 2-6,2-6 |
| ITF Portugal F20 Qual | 2017/09/25 09:30 | Daniel Kopeinigg v Jose Antonio Dugo Reyes | 6-1,7-6 |
| ITF Portugal F20 Qual | 2017/09/24 10:30 | Jose Antonio Dugo Reyes v Fabio Coelho | 6-1,4-6,6-2 |