| ITF M15 Xativa | 2021/08/01 13:00 | Lawrence Bataljin v Grigoriy Korobeynikov | 7-5,2-6,8-10 |
| ITF M25 Gandia | 2021/07/19 10:00 | Lawrence Bataljin v Juan P Canas Garcia | 4-6,3-6 |
| ITF M25 Gandia | 2021/07/18 09:00 | Roman Revkov v Lawrence Bataljin | 1-6,0-6 |
| ITF M25 Telfs | 2021/07/12 08:00 | Lawrence Bataljin v Hasan Ibrahim | 6-7,7-6,7-10 |
| ITF M25 Marburg | 2021/07/05 10:05 | Lawrence Bataljin v Maik Steiner | 4-6,3-6 |
| ITF M15 Marbella | 2021/05/23 09:30 | Asier P D Zulueta v Lawrence Bataljin | 2-6,7-6,10-8 |
| ITF M25 Vic | 2021/05/16 08:00 | Lawrence Bataljin v Miguel Damas | 2-6,3-6 |
| ITF M15 Cairo | 2021/04/12 08:30 | Lorenzo Vatteroni v Lawrence Bataljin | 6-2,6-3 |
| ITF M15 Novi Sad | 2021/08/01 14:00 | Stefanos Sakellaridis v Lukas Palovic | 4-6,1-6 |
| ITF M25 Kottingbrunn | 2021/07/18 07:30 | Stefanos Sakellaridis v Samuel Paulovcak | 1-6,4-6 |
| ITF M15 Sofia | 2021/07/05 07:00 | Stefanos Sakellaridis v Aristotelis Thanos | 2-6,6-7 |
| ITF M15 Antalya | 2021/06/30 06:30 | Hanwen Li v Stefanos Sakellaridis | 6-1,6-2 |
| ITF M15 Antalya | 2021/06/29 11:50 | Daniil Glinka v Stefanos Sakellaridis | 3-6,2-6 |
| ITF M15 Antalya | 2021/06/28 11:55 | Stefanos Sakellaridis v Inigo G Olasagasti | 6-3,6-4 |
| ITF M15 Antalya | 2021/06/27 06:30 | Ivan Kazakov v Stefanos Sakellaridis | 1-6,4-6 |
| ITF M15 Antalya | 2021/06/20 07:00 | Ignacio Carou v Stefanos Sakellaridis | 6-4,6-3 |