Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Marburg | 2021/07/07 12:30 | Daniel Cukierman v Milan Welte | 4-6,4-6 |
| ITF M25 Belgrade | 2021/07/04 07:55 | Nick Hardt v Daniel Cukierman | 3-6,6-3,6-3 |
| ITF M25 Belgrade | 2021/07/02 07:00 | Daniel Cukierman v Miljan Zekic | 6-4,6-4 |
| ITF M25 Belgrade | 2021/07/01 07:00 | Jaimee Floyd Angele v Daniel Cukierman | 6-3,4-6,4-6 |
| ITF M25 Belgrade | 2021/06/30 07:00 | Strahinja Rakic v Daniel Cukierman | 3-6,2-6 |
| ITF M25 Belgrade | 2021/06/29 07:00 | Daniel Cukierman v Mirko Martinez | 6-1,6-4 |
| ITF M25 Belgrade | 2021/06/28 07:00 | Daniel Cukierman v Vladislav Melnic | 6-3,6-1 |
| ITF M25 Belgrade | 2021/06/27 11:00 | Daniel Cukierman v Aleksa Bucan | 6-2,6-1 |
| ITF M15 Sibenik | 2021/04/19 08:00 | Christian Sigsgaard v Neil Oberleitner | 7-6,6-4 |
| ITF M15 Sibenik | 2021/04/18 08:00 | Matic Dimic v Neil Oberleitner | 7-6,4-6,6-10 |
| ITF M15 Sharm El Sheikh | 2021/04/06 08:55 | Neil Oberleitner v Adam Jones | 2-6,6-1,8-10 |
| ITF M15 Sharm El Sheikh | 2021/04/05 11:30 | Neil Oberleitner v Emiliano Troche | 6-0,6-1 |
| ITF M15 Sharm El Sheikh | 2021/03/28 14:30 | Lorenzo Rottoli v Neil Oberleitner | 6-1,3-6,10-8 |
| ITF M15 Sharm El Sheikh | 2021/03/23 07:30 | Francesco Vilardo v Neil Oberleitner | 6-2,6-4 |
| ITF M15 Sharm El Sheikh | 2021/03/22 07:30 | Zura Tkemaladze v Neil Oberleitner | 4-6,6-2,5-10 |
| ITF M15 Sharm El Sheikh | 2021/03/21 07:00 | Yacoub Makzoume v Neil Oberleitner | 1-6,2-6 |