| Challenger Oeiras Qual | 2021/04/04 13:10 | Alexey Vatutin v Slobodchikov, Ronald | 6-2,6-3 |
| ITF M15 La Nucia | 2021/03/11 11:40 | Slobodchikov, Ronald v Pablo Llamas Ruiz | 2-6,1-6 |
| ITF M15 La Nucia | 2021/03/09 14:30 | Slobodchikov, Ronald v Arthur Fils | 6-2,7-5 |
| Challenger Gran Canaria | 2021/02/21 13:15 | Michael Vrbensky v Slobodchikov, Ronald | 6-2,6-3 |
| German Premier League | 2020/08/21 06:30 | Mircea-Alexandru Jecan v Slobodchikov, Ronald | 7-5,3-6,3-6 |
| German Premier League | 2020/08/20 08:15 | Slobodchikov, Ronald v Ergi Kirkin | 7-6,7-5 |
| German Premier League | 2020/08/19 10:40 | Slobodchikov, Ronald v Quentin Folliot | 6-4,6-0 |
| German Premier League | 2020/08/18 14:10 | Slobodchikov, Ronald v Buvaysar Gadamauri | 6-3,6-3 |