Stadium: Pista 3 Round: 14 Ground: Hardcourt outdoor
| Challenger Amersfoort | 2021/07/11 10:00 | Martos Gornes, Sergio v Carlos Sanchez Jover | 4-6,4-6 |
| UTR Pro Tennis Series Barcelona | 2021/06/12 08:30 | Martos Gornes, Sergio v Diego F Flores | 3-6,4-5 |
| UTR Pro Tennis Series Barcelona | 2021/06/11 13:00 | Martos Gornes, Sergio v Dominik Palan | 4-6,2-6 |
| Challenger - Oeiras | 2021/03/28 10:00 | Martos Gornes, Sergio v Denis Yevseyev | 3-6,3-6 |
| Challenger Guayaquil | 2020/11/14 15:00 | Nicolas Alvarez v Martos Gornes, Sergio | 6-0,6-2 |
| Murcia, Singles Qualifying M-ITF-ESP-05A | 2020/03/02 13:00 | Trapeznikov, Zakhar v Martos Gornes, Sergio | 6-4,0-6,10-5 |
| Challenger Sibiu | 2019/09/18 09:55 | Laurent Lokoli v Martos Gornes, Sergio | 6-1,6-2 |
| Challenger Sibiu | 2019/09/16 07:00 | Jaroslav Pospisil v Martos Gornes, Sergio | 7-5,6-3 |
| Challenger Porto | 2021/06/27 11:30 | Cabral, Francisco v Slobodchikov, Ronald | 6-2,6-2 |
| Challenger - Aix en Provence | 2021/06/13 08:30 | Slobodchikov, Ronald v Oscar Jose Gutierrez | 1-6,4-6 |
| Challenger Biella | 2021/05/30 13:30 | Slobodchikov, Ronald v Camilo Ugo Carabelli | 2-6,1-6 |
| Challenger - Oeiras | 2021/05/23 10:00 | Lucas Catarina v Slobodchikov, Ronald | 6-1,6-3 |
| UTR Pro Tennis Series Barcelona | 2021/05/02 07:00 | Slobodchikov, Ronald v Dzhavakian, Yurii | 4-6,2-6 |
| UTR Pro Tennis Series Barcelona | 2021/04/28 09:30 | Slobodchikov, Ronald v Toledo Bague, Pol | 2-6,2-6 |
| UTR Pro Tennis Series Barcelona | 2021/04/27 09:30 | Slobodchikov, Ronald v Noah Lopez | 2-6,4-6 |
| UTR Pro Tennis Series Barcelona | 2021/04/26 09:30 | Calvo Barcelo, Fermin v Slobodchikov, Ronald | 4-6,3-6 |