Stadion: Court 4 Round: 62 Ground: Clay
| ITF - M25 - Belgrad | 2021/06/29 07:00 | Bogdan Pavel v Martin Zeljenka | 6-1,6-3 |
| ITF - M25 - Belgrad | 2021/06/28 10:00 | Martin Zeljenka v Matvey Minin | 7-5,6-3 |
| ITF - M25 - Belgrad | 2021/06/27 12:00 | Martin Zeljenka v George Gregoriou | 6-1,6-1 |
| ITF - M15 - Sibenik | 2021/05/17 11:00 | Martin Zeljenka v Martin Breysach | 6-7,3-6 |
| ITF - M15 - Sibenik | 2021/05/16 07:30 | Joris Hoogland v Martin Zeljenka | 6-7,3-6 |
| ITF - M15 - Prijedor | 2021/05/09 09:30 | Kristijan Juhas v Martin Zeljenka | 6-1,6-1 |
| ITF - M15 - Sibenik | 2021/04/19 12:20 | Gorazd Srbljak v Martin Zeljenka | 6-0,6-2 |
| ITF - M15 - Sibenik | 2021/04/18 10:00 | Martin Zeljenka v Anze Arh | 7-5,1-6,10-3 |
| ITF - M15 - Sibenik | 2021/05/16 10:00 | Rafael Kis Balazs v Martin Breysach | 0-6,4-6 |
| ITF - M15 - Anif | 2020/08/23 07:00 | Rafael Kis Balazs v Vladimir Filip | 3-6,4-6 |
| ITF - M25 - Vogau | 2020/08/16 09:30 | Timofey Skatov v Rafael Kis Balazs | 6-0,6-2 |
| ITF - M15 - Manacor | 2020/01/05 10:30 | Adrian Bodmer v Rafael Kis Balazs | 6-1,6-0 |
| ITF - Ungarn F2 - Qualifikation | 2018/05/12 08:00 | Rafael Kis Balazs v Matej Maruscak | 1-6,4-6 |
| ITF - Ungarn F1 - Qualifikation | 2018/05/07 10:30 | Mihnea L.S. Turcu v Rafael Kis Balazs | 6-1,6-3 |
| ITF - Ungarn F1 - Qualifikation | 2018/05/05 08:00 | Rafael Kis Balazs v Matthias Angerbauer | 7-5,6-1 |
| ITF - Ungarn F3 - Qualifikation | 2017/05/21 08:00 | Martin Fekiac v Rafael Kis Balazs | 6-1,6-1 |