Stadium: Hard 21 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Heraklion | 2021/11/21 07:00 | Pijus Vaitiekunas v Sidane Pontjodikromo | 2-6,6-3,5-10 |
| ITF M15 Sharm El Sheikh | 2021/10/26 09:00 | Pijus Vaitiekunas v Ali Habib | 4-6,6-4,9-11 |
| ITF M15 Sharm El Sheikh | 2021/10/25 10:30 | Pijus Vaitiekunas v Seth Seely | 6-1,6-3 |
| ITF M15 Sharm El Sheikh | 2021/10/24 13:30 | Roland Stuurman v Pijus Vaitiekunas | 2-6,2-6 |
| ITF M15 Sharm El Sheikh | 2021/10/20 09:05 | Pijus Vaitiekunas v Haoyuan Huang | 5-7,4-6 |
| ITF M15 Sharm El Sheikh | 2021/10/19 07:30 | Astur Martinez Irigoyen v Pijus Vaitiekunas | 2-6,0-6 |
| ITF M15 Sharm El Sheikh | 2021/10/18 07:00 | Dennis Dragomirov v Pijus Vaitiekunas | 4-6,4-6 |
| ITF M15 Sharm El Sheikh | 2021/10/17 08:00 | Pijus Vaitiekunas v Roman Nashatyrkin | 3-6,6-4,10-3 |
| ITF M15 Heraklion | 2021/11/28 08:00 | Stephanos Schinas v Andre Meinertz | 6-0,6-2 |
| ITF M15 Heraklion | 2021/11/21 07:00 | Stephanos Schinas v Preston Brown | 3-6,2-6 |
| ITF M15 Heraklion | 2021/11/14 07:00 | Max Houkes v Stephanos Schinas | 6-2,6-4 |
| ITF M15 Heraklion | 2021/11/09 07:00 | Alec Deckers v Stephanos Schinas | 6-0,7-5 |
| ITF M15 Heraklion | 2021/11/08 08:00 | Stephanos Schinas v Igor Shrolik | 6-2,6-3 |
| ITF M15 Heraklion | 2021/11/03 09:20 | Stephanos Schinas v Jonas Trinker | 3-6,2-6 |
| ITF M15 Sharm El Sheikh | 2021/10/04 08:00 | Nitin Kumar Sinha v Stephanos Schinas | 6-1,6-4 |
| ITF M15 Sharm El Sheikh | 2021/10/03 08:00 | Bertin Karenzi v Stephanos Schinas | 1-6,2-6 |