Stadium: Court 6 Round: 62 Ground: Clay
| ITF M25 Skopje | 2021/09/27 11:00 | Aristotelis Thanos v Manasov, Ivan | 6-3,6-2 |
| Pirot, Singles M-ITF-SRB-05A | 2021/09/22 08:00 | Kocevar-Desman, Tom v Aristotelis Thanos | 7-6,6-1 |
| ITF M15 Ulcinj | 2021/09/02 08:30 | March, Antonio Cayetano v Aristotelis Thanos | 7-6,6-4 |
| ITF M15 Ulcinj | 2021/09/01 10:00 | Aristotelis Thanos v Kekez, Duje | 2-6,7-6,6-0 |
| ITF M15 Ulcinj | 2021/08/30 11:30 | Aristotelis Thanos v Tomas, Aleksandar | 5-7,2-6 |
| ITF M15 Ulcinj | 2021/08/30 07:30 | Aristotelis Thanos v Danilo Raicevic | 6-2,6-1 |
| ITF M25 Poznan | 2021/08/25 13:10 | Aristotelis Thanos v Podzus, Martins | 2-6,3-6 |
| ITF M25 Poznan | 2021/08/24 13:10 | Aristotelis Thanos v Valerio Aboian | 6-7,1-6 |
| ITF M25 Skopje | 2021/09/27 09:45 | Ognjen Pavlovic v Ma, William | 4-6,2-6 |
| ITF M15 Ulcinj | 2021/09/20 08:00 | Petar Jovanovic v Ma, William | 6-0,6-2 |
| ITF M15 Ulcinj | 2021/09/12 08:00 | Ma, William v Procopio, Alessandro | 2-6,2-6 |
| ITF M15 Allershausen | 2021/09/01 14:05 | Mark Whitehouse v Ma, William | 6-4,3-6,6-2 |
| ITF M15 Allershausen | 2021/08/31 08:00 | Ma, William v Link, Joel Vincent | 6-2,6-3 |
| ITF M15 Allershausen | 2021/08/30 09:30 | Ma, William v Julian Peter | 6-1,6-1 |
| ITF M25 Trier | 2021/08/23 11:30 | Ma, William v Amaury Raynel | 4-6,2-6 |
| ITF M25 Ueberlingen | 2021/08/16 12:30 | Ma, William v Jimmy Yang | 1-6,4-6 |