Stadium: Court 7 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Uriage | 2021/07/11 14:50 | Denis Constantin Spiridon v Edouard Villoslada | 1-6,1-6 |
| ITF M15 Novomoskovsk | 2021/05/24 12:00 | Simon A Ivanov v Denis Constantin Spiridon | 7-6,6-1 |
| ITF M15 Novomoskovsk | 2021/05/23 08:00 | Denis Constantin Spiridon v Illya Maksymchuk | 7-6,3-6,10-8 |
| ITF M15 Cancun | 2020/02/17 14:00 | Matic Spec v Denis Constantin Spiridon | 6-4,6-1 |
| ITF M15 Monastir | 2021/10/03 09:00 | Fabian Hansch Mauritzson v Jan Dimitrijevic | 6-4,3-6,5-10 |
| ITF M15 Monastir | 2021/09/26 08:00 | Fabian Hansch Mauritzson v Geni Inoue | 1-6,0-6 |
| ITF M15 Monastir | 2021/09/19 08:00 | Josh Reid v Fabian Hansch Mauritzson | 6-1,3-6,10-3 |