Stadium: Court 5 Round: 54 Ground: Clay
| ITF M15 Antalya | 2019/04/09 09:30 | Vladimir Korolev v David Szintai | 6-4,6-2 |
| ITF M15 Antalya | 2019/04/08 07:15 | Kaya Arinc v David Szintai | 2-6,0-6 |
| ITF M15 Doha | 2019/03/11 12:30 | Adrian Obert v David Szintai | 6-3,6-0 |
| ITF M15 Doha | 2019/03/11 10:00 | Taym Alazmeh v David Szintai | 3-6,1-6 |
| Challenger Budapest | 2019/02/05 16:35 | David Szintai v Danilo Petrovic | 3-6,4-6 |
| Challenger Budapest | 2019/02/04 09:00 | Alessandro Bega v David Szintai | 7-5,4-6,6-7 |
| Davis Cup | 2019/02/02 14:10 | Philipp Kohlschreiber v David Szintai | 6-7,6-3,10-5 |
| ITF Hungary F7 | 2018/08/29 10:00 | Mate Valkusz v David Szintai | 6-1,6-4 |
| ITF Czech Republic F9 | 2018/11/04 15:00 | Martin Zeljenka v Bartosz Wojnar | 6-7,4-6 |
| ITF Hungary F7 | 2018/08/29 12:55 | Martin Zeljenka v Wilson Leite | 1-6,4-6 |
| ITF Hungary F6 | 2018/08/21 12:50 | Danylo Kalenichenko v Martin Zeljenka | 6-1,6-3 |
| ITF Hungary F6 | 2018/08/20 09:00 | Bartosz Wojnar v Martin Zeljenka | 4-6,6-7 |
| ITF Slovakia F3 | 2018/08/07 08:00 | Martin Zeljenka v Jack Draper | 4-6,2-6 |
| ITF Slovakia F3 | 2018/08/06 08:00 | Isa Mammetgulyyev v Martin Zeljenka | 6-3,1-6,1-6 |
| ITF Slovakia F2 | 2018/07/29 09:00 | Martin Zeljenka v Adam Blecha | 3-6,6-4,3-6 |
| ITF Slovakia F1 | 2018/07/23 09:00 | Isa Mammetgulyyev v Martin Zeljenka | 6-4,6-1 |