 Germany: M15 Frankfurt am Main - Doubles - Main |
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| Final | Haerteis J./Schell N. | Schnaitter J./Wallner M. | 2:1 (3:6, 7:61, 10:8) | details | 12.08.2023 |
| Semi-finals | Haerteis J./Schell N. | Donders D./Visker N. | 2:0 (7:63, 6:2) | details | 11.08.2023 |
| Quarter-finals | Haerteis J./Schell N. | Kelm Y./Poertner L. | WO. | details | 11.08.2023 |
| 1/8-finals | Haerteis J./Schell N. | Corbinais S./Hesselmann L. | 2:0 (6:0, 6:3) | details | 08.08.2023 |
 Portugal: M25 Porto - Doubles - Main |
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| Quarter-finals | Ambarzumjan E./Haerteis J. | Fery A./Parker S. | 0:2 (2:6, 1:6) | details | 27.07.2023 |
| 1/8-finals | Gonzalez Fernandez M./Malirz K. | Ambarzumjan E./Haerteis J. | 0:2 (2:6, 4:6) | details | 25.07.2023 |
 Romania: M15 Cluj Napoca - Doubles - Main |
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| 1/8-finals | Haerteis J./Heller P. | Onofrei M. C./Teglas I. A. | CAN. | details | 20.06.2023 |
 Spain: M25 Sanxenxo - Doubles - Main |
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| Quarter-finals | Haerteis J./Orlov V. | Braynin A./Cunat M. | 1:2 (6:4, 3:6, 7:10) | details | 26.04.2023 |
| 1/8-finals | Haerteis J./Orlov V. | Mu T./Strombachs R. | 2:0 (6:2, 6:2) | details | 25.04.2023 |
 Turkey: M15 Antalya 12 - Doubles - Main |
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| Final | Haerteis J./Heller P. | Paz J. P./Tenti F. | 2:0 (6:4, 7:67) | details | 22.04.2023 |
| Semi-finals | Haerteis J./Heller P. | Huber D./Kahoun J. | 2:0 (6:3, 6:3) | details | 21.04.2023 |
| Quarter-finals | Haerteis J./Heller P. | Saritas G./Turker M. N. | 2:0 (6:3, 6:4) | details | 20.04.2023 |
| 1/8-finals | Haerteis J./Heller P. | Reitano S./Tomasetto L. | 2:0 (6:2, 7:5) | details | 19.04.2023 |
| Turkey: M15 Antalya 11 - Doubles - Main |
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| Quarter-finals | Haerteis J./Moeller M. | Bielinskyi V./Wenger D. | 0:2 (67:7, 3:6) | details | 13.04.2023 |
| 1/8-finals | Milev Y./Reid J. | Haerteis J./Moeller M. | 0:2 (3:6, 63:7) | details | 12.04.2023 |
 Italy: M25 Trento - Doubles - Main |
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| 1/8-finals | Glinka D./Saar K. K. | Haerteis J./Veldheer M. | 2:1 (6:4, 3:6, 10:7) | details | 28.03.2023 |
 Switzerland: M25 Trimbach - Doubles - Main |
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| Final | Haerteis J./Masur D. | Broom C./Matusevich A. | 2:1 (7:63, 63:7, 10:5) | details | 18.03.2023 |
| Semi-finals | Huber D./Kahoun J. | Haerteis J./Masur D. | 0:2 (4:6, 3:6) | details | 17.03.2023 |
| Quarter-finals | Haerteis J./Masur D. | Handel T./Kivattsev K. | 2:0 (6:2, 6:3) | details | 16.03.2023 |
Sweden: M25 Ystad - Singles - Main
Finland: M15 Vaasa - Singles - Main
Czech Republic: Prague 2 - Singles - Qualification
France: M15 Forbach - Singles - Main