 Germany: M15 Trier - Doubles - Main |
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| Final | Ruehl T./Zahraj P. | Johann L./Welte M. | 1:2 (4:6, 6:2, 7:10) | dettagli | 24.08.2024 |
| Semi-finals | Johann L./Welte M. | Denolly C./Raynel A. | 2:0 (6:4, 6:2) | dettagli | 22.08.2024 |
| Quarter-finals | Johann L./Welte M. | Finkelstein A./Hsu Chen-Yang | 2:0 (6:1, 7:62) | dettagli | 21.08.2024 |
| 1/8-finals | Thurner D./Thurner N. | Johann L./Welte M. | 0:2 (3:6, 64:7) | dettagli | 20.08.2024 |
| Germany: M15 Uslar - Doubles - Main |
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| Semi-finals | Steinbach A./Williams A. J. | Johann L./Welte M. | 2:0 (6:3, 6:4) | dettagli | 19.07.2024 |
| Quarter-finals | Johann L./Welte M. | Apltauer F./Baum S. | 2:0 (6:3, 6:2) | dettagli | 18.07.2024 |
| Germany: M25 Marburg - Doubles - Main |
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| Semi-finals | Welte M./Wiskandt M. | Gadamauri B./Matusevich A. | 0:2 (4:6, 2:6) | dettagli | 05.07.2024 |
| Quarter-finals | Oetzbach A./Sobbe L. M. | Welte M./Wiskandt M. | 0:2 (5:7, 3:6) | dettagli | 04.07.2024 |
| 1/8-finals | Egbring M./Marysko V. | Welte M./Wiskandt M. | 0:2 (4:6, 3:6) | dettagli | 02.07.2024 |
| Germany: M15 Kamen - Doubles - Main |
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| 1/8-finals | Cubelic K./Welte M. | Fix D./Marysko V. | 0:2 (3:6, 4:6) | dettagli | 25.06.2024 |
| Germany: M15 Saarlouis - Doubles - Main |
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| Final | Pontjodikromo S./Visker N. | Johann L./Welte M. | 2:1 (4:6, 6:0, 10:7) | dettagli | 22.06.2024 |
| Semi-finals | Johann L./Welte M. | Anterist M./Kirchner D. | 2:0 (6:1, 6:3) | dettagli | 21.06.2024 |
| Quarter-finals | Engel J./Gavrielides L. | Johann L./Welte M. | 1:2 (66:7, 6:4, 7:10) | dettagli | 20.06.2024 |
| 1/8-finals | Johann L./Welte M. | Bobrov B./Fomin S. | 2:1 (6:4, 2:6, 10:4) | dettagli | 18.06.2024 |
 Greece: M15 Heraklion 3 - Doubles - Main |
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| Quarter-finals | Bakshi A./Tkemaladze Z. | Cubelic K./Welte M. | WO. | dettagli | 22.03.2024 |
| 1/8-finals | Cubelic K./Welte M. | Chetewy U. B./Glavas C. | 2:0 (6:3, 6:2) | dettagli | 19.03.2024 |
 France: M25 Sarreguemines - Doubles - Main |
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| Quarter-finals | Cubelic K./Welte M. | Somani P./Sultanov K. | 0:2 (1:6, 3:6) | dettagli | 26.10.2023 |
| 1/8-finals | Cubelic K./Welte M. | Beauge M./Cunat M. | 2:0 (6:2, 6:2) | dettagli | 25.10.2023 |
 Netherlands: M15 Haren - Doubles - Main |
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| 1/8-finals | Fix D./Welte M. | Jans J./Visker N. | 1:2 (6:1, 4:6, 6:10) | dettagli | 05.09.2023 |
| Germany: M25 Wetzlar - Doubles - Main |
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| Final | Buttner T./Schell N. | Johann L./Welte M. | 2:0 (7:5, 6:4) | dettagli | 05.08.2023 |
| Semi-finals | Johann L./Welte M. | Gadamauri B./Nicod J. | 2:1 (6:4, 2:6, 11:9) | dettagli | 04.08.2023 |
| Quarter-finals | Johann L./Welte M. | Fanselow S./Storck L. | 2:0 (7:5, 7:5) | dettagli | 03.08.2023 |
| 1/8-finals | Johann L./Welte M. | La Vela G./Sciglitano L. | 2:0 (7:63, 7:5) | dettagli | 02.08.2023 |
Switzerland: M25 Muttenz - Singles - Main