| UTR Pro Tennis Series - Mulheim | 2021/09/24 09:30 | Maxence Broville v Mikhail Minakov | 1-6,4-5 |
| UTR Pro Tennis Series - Mulheim | 2021/09/23 09:30 | Benjamin Dhoe v Mikhail Minakov | 6-4,5-0 |
| UTR Pro Tennis Series - Mulheim | 2021/09/20 08:00 | Mikhail Minakov v Alen Moritz Hodzic | 2-6,6-2,5-0 |
| ITF - M15 Sozopol | 2021/09/14 07:00 | George Lazarov v Mikhail Minakov | 7-5,4-6,10-4 |
| ITF - M15 Sozopol | 2021/09/13 08:00 | Piotr Kusiewicz v Mikhail Minakov | 6-7,6-1,4-10 |
| ITF - M15 Parnu | 2021/08/02 11:00 | Roni Rikkonen v Mikhail Minakov | 6-4,6-3 |
| ITF - M25 Velenje | 2021/07/04 07:30 | Nemanja Malesevic v Mikhail Minakov | 7-5,6-7,10-8 |
| ITF - M25 Wroclaw | 2021/06/27 11:00 | Mikhail Minakov v Tomas Jirousek | 6-3,3-6,1-10 |
| UTR Pro Tennis Series - Mulheim | 2021/09/24 11:00 | Thijmen Loof v Guy Den Heijer | 3-6,2-6 |
| UTR Pro Tennis Series - Mulheim | 2021/09/23 08:00 | Jose A R Rodriguez v Guy Den Heijer | 6-7,2-5 |
| UTR Pro Tennis Series - Mulheim | 2021/09/21 13:00 | Buvaysar Gadamauri v Guy Den Heijer | 6-4,6-6 |
| UTR Pro Tennis Series - Mulheim | 2021/09/20 12:30 | Guy Den Heijer v Lawrence Bataljin | 6-0,5-1 |
| ITF - M25 Eupen | 2021/09/09 09:00 | Romain Faucon v Guy Den Heijer | 6-4,6-4 |
| ITF - M25 Eupen | 2021/09/08 07:30 | Guy Den Heijer v Kai Wehnelt | 3-6,6-3,6-2 |
| ITF - M25 Eupen | 2021/09/07 10:05 | Guy Den Heijer v Tom Gentzsch | 6-3,6-4 |
| ITF - M25 Eupen | 2021/09/06 14:45 | Guy Den Heijer v Yannick Lenaerts | 6-1,6-0 |