Stadium: Hard Court 2 Round: 62 Ground: Hardcourt outdoor
| ITF - M15 Heraklion | 2021/11/21 11:00 | Aristotelis Thanos v Aaron Cohen | 6-3,6-1 |
| ITF - M15 Heraklion | 2021/11/05 08:30 | Aristotelis Thanos v Kyle Seelig | 1-6,5-7 |
| ITF - M15 Heraklion | 2021/11/04 08:55 | Aristotelis Thanos v Alessandro Spadola | 7-5,2-6,6-3 |
| ITF - M15 Heraklion | 2021/11/03 07:00 | Karlis Ozolins v Aristotelis Thanos | 2-6,4-6 |
| ITF - M25 Skopje | 2021/09/29 11:50 | Aristotelis Thanos v Gorazd Srbljak | 2-6,4-6 |
| ITF - M25 Skopje | 2021/09/28 07:30 | Aristotelis Thanos v William Ma | 6-4,6-1 |
| ITF - M25 Skopje | 2021/09/27 11:00 | Aristotelis Thanos v Ivan Manasov | 6-3,6-2 |
| ITF - M15 Pirot | 2021/09/22 08:00 | Tom Kocevar-Desman v Aristotelis Thanos | 7-6,6-1 |
| ITF - M15 Heraklion | 2021/11/22 11:00 | Jan Kupcic v Sean Hodkin | 7-6,0-6,10-8 |
| ITF - M15 Bad Waltersdorf | 2021/08/29 07:00 | Jan Kupcic v Alberto Morolli | 6-1,3-6,8-10 |
| ITF - M25 Kiseljak | 2021/05/24 12:15 | Jan Kupcic v Rrezart Cungu | 6-4,0-6,4-10 |
| ITF - M25 Kiseljak | 2021/05/23 10:45 | Jan Kupcic v Max Van Wijk | 2-6,0-6 |
| ITF - M15 Sibenik | 2021/05/17 11:00 | Jan Kupcic v Taiyo Yamanaka | 5-7,6-0,4-10 |
| ITF - M15 Sibenik | 2021/05/16 07:30 | Benedikt Emesz v Jan Kupcic | 1-6,6-4,6-10 |
| ITF - M15 Prijedor | 2021/05/10 08:00 | Rimpei Kawakami v Jan Kupcic | 6-0,7-5 |
| ITF - M15 Prijedor | 2021/05/09 07:00 | Jan Kupcic v Petar Jovic | 6-2,6-0 |