Stadium: Court 3 Round: 44 Ground: Clay
| ITF M15 Doboj | 2024/05/05 07:30 | Afan Nekovic v Dmitry Suboch | 1-6,3-6 |
| ITF M15 Osijek | 2024/04/30 07:50 | Attila Dominik Boros v Martin Zeljenka | 6-0,6-1 |
| ITF M15 Osijek | 2024/04/29 12:35 | Adam Gabor Szoke v Martin Zeljenka | 5-7,1-6 |
| ITF M15 Osijek | 2024/04/28 07:00 | Luke Kelsall v Martin Zeljenka | 2-6,3-6 |
| ITF M25 Trnava | 2024/03/25 09:00 | Tomas Talajka v Martin Zeljenka | 6-3,3-6,10-5 |
| ITF M15 Oberhaching | 2024/02/11 15:30 | Milos Karol v Martin Zeljenka | 6-2,6-2 |
| ITF M15 Oberhaching | 2024/02/11 12:10 | Laurin Aerne v Martin Zeljenka | 2-6,6-2,2-10 |
| ITF M15 Arad | 2023/09/26 06:30 | Patrick Zahraj v Martin Zeljenka | 6-2,6-3 |
| ITF M15 Arad | 2023/09/25 07:00 | Martin Zeljenka v Louis Allen | 6-3,6-4 |