| 2019-09-14 | Davis Cup G1 R1: HUN vs UKR | Clay | RR | 147 |  Sergiy Stakhovsky | 136 |  Attila Balazs | 6-4 6-3 | H2H | 3 | - | - | - | - | - | - | - |
| 2019-09-14 | Davis Cup G1 R1: HUN vs UKR | Clay | RR | 136 | Attila Balazs | 371 | Illya Marchenko | 6-4 7-5 | H2H | 3 | - | - | - | - | - | - | - |
| 2019-07-15 | Umag | Clay | F | 36 |  Dusan Lajovic (4) | 207 | Attila Balazs (Q) | 7-5 7-5 | H2H | 3 | 110 | 2 | 0 | 70.6% | 70.8% | 60.0% | 0/2 |
| 2019-07-15 | Umag | Clay | SF | 207 | Attila Balazs (Q) | 32 | Laslo Djere (3) | 6-2 6-4 | H2H | 3 | 98 | 1 | 5 | 52.1% | 71.1% | 51.4% | 9/10 |
| 2019-07-15 | Umag | Clay | QF | 207 | Attila Balazs (Q) | 105 |  Stefano Travaglia | 3-6 7-6(2) 6-3 | H2H | 3 | 142 | 8 | 4 | 55.0% | 65.5% | 57.8% | 5/8 |
| 2019-07-15 | Umag | Clay | R16 | 207 | Attila Balazs (Q) | 58 | Filip Krajinovic (6) | 6-3 6-7(1) 7-6(5) | H2H | 3 | 157 | 10 | 2 | 55.2% | 65.5% | 63.8% | 5/8 |
| 2019-07-15 | Umag | Clay | R32 | 207 | Attila Balazs (Q) | 197 |  Viktor Galovic (WC) | 6-0 6-7(5) 7-6(4) | H2H | 3 | 161 | 4 | 3 | 68.6% | 72.2% | 57.6% | 10/11 |
| 2019-04-22 | Budapest | Clay | QF | 49 |  Pierre-Hugues Herbert | 246 | Attila Balazs (WC) | 6-3 6-4 | H2H | 3 | 75 | 4 | 3 | 61.8% | 88.2% | 57.1% | 1/1 |
| 2019-04-22 | Budapest | Clay | R16 | 246 | Attila Balazs (WC) | 39 |  John Millman (6) | 6-4 2-6 6-2 | H2H | 3 | 122 | 3 | 8 | 60.6% | 70.2% | 43.2% | 9/11 |
| 2019-04-22 | Budapest | Clay | R32 | 246 | Attila Balazs (WC) | 52 |  Hubert Hurkacz | 6-3 6-4 | H2H | 3 | 79 | 1 | 3 | 64.7% | 70.5% | 66.7% | 6/6 |
