Stadium: Court 21 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Heraklion | 2021/11/01 11:00 | Michel-Alexandre Fortin v Jonathan Backman | 4-6,4-6 |
| ITF M25 Falun | 2021/09/26 11:00 | Christian Sigsgaard v Jonathan Backman | 6-1,6-4 |
| ITF M25 Jonkoping | 2021/09/20 09:10 | Robin Thour v Jonathan Backman | 6-4,4-6,10-6 |
| ITF M25 Jonkoping | 2021/09/19 08:00 | Jonathan Backman v Caspar Schuetze | 7-6,6-0 |
| ITF M15 Heraklion | 2021/11/01 11:00 | Ioannis Kountourakis v Nikolas Moceanu | 6-1,6-2 |
| ITF M15 Cairo | 2021/09/13 08:00 | Ioannis Kountourakis v Maikel De Boes | 4-6,4-6 |
| ITF M15 Cairo | 2021/09/07 07:30 | Tobias Franco v Ioannis Kountourakis | 6-4,6-2 |
| ITF M15 Cairo | 2021/09/06 08:30 | Antonio Mazzeo v Ioannis Kountourakis | 2-6,4-6 |
| ITF M15 Cairo | 2021/09/05 07:30 | Ioannis Kountourakis v Atharva Sharma | 6-4,6-3 |
| ITF M15 Cairo | 2021/08/30 09:00 | Louis Allen v Ioannis Kountourakis | 6-7,6-4,10-6 |
| ITF M15 L'Aquila | 2021/07/11 07:00 | Ioannis Kountourakis v Federico Bertuccioli | 3-6,4-6 |
| ITF M15 Heraklion | 2021/06/08 08:00 | Petros Tsitsipas v Ioannis Kountourakis | 6-1,7-6 |