 Greece: M15 Heraklion 7 - Doubles - Main |
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| 1/8-finals | Schinas S./Shumilov E. | Hoffmann M./Schlageter J. | 0:2 (3:6, 4:6) | details | 20.11.2024 |
 Egypt: M15 Sharm ElSheikh 15 - Doubles - Main |
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| Quarter-finals | Alam P./Schlageter J. | Tamm K./Zhu M. | 0:2 (4:6, 1:6) | details | 07.11.2024 |
| 1/8-finals | Hrazdil J./Lanik T. | Alam P./Schlageter J. | 1:2 (2:6, 6:2, 9:11) | details | 05.11.2024 |
| Egypt: M15 Sharm ElSheikh 14 - Doubles - Main |
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| 1/8-finals | Schlageter J./Stanke C. | Bar Biryukov P./Philippov E. | 1:2 (4:6, 6:3, 8:10) | details | 29.10.2024 |
 Austria: M15 Vienna - Doubles - Main |
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| 1/8-finals | Pino S./Schlageter J. | Elsayed A./Safwat M. | 0:2 (3:6, 0:6) | details | 27.08.2024 |
| Austria: M15 Kottingbrunn - Doubles - Main |
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| Quarter-finals | Kelm Y./Schlageter J. | Bassem Sobhy M./Zakaryia F. | 1:2 (6:3, 2:6, 4:10) | details | 22.08.2024 |
| 1/8-finals | Golubev D./Lomakin G. | Kelm Y./Schlageter J. | 0:2 (3:6, 3:6) | details | 21.08.2024 |
 Germany: M15 Überlingen - Doubles - Main |
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| Semi-finals | Egea F. E./Iamachkine P. | Fix D./Schlageter J. | WO. | details | 16.08.2024 |
| Quarter-finals | Fix D./Schlageter J. | Sakellaridis D./Sakellaridis M. | 2:1 (6:4, 4:6, 10:7) | details | 15.08.2024 |
| 1/8-finals | Dufner N./Garcia Suarez D. | Fix D./Schlageter J. | 0:2 (2:6, 1:6) | details | 14.08.2024 |
 USA: M15 Norman, OK - Doubles - Main |
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| 1/8-finals | Banthia S./Kikuchi Y. | Schlageter J./van Assendelft J. | 2:0 (7:5, 6:2) | details | 25.10.2022 |
| USA: US Open - Doubles - Main |
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| 1/16-finals | Schlageter J./Squire H. | Jianu F. C./Wassermann D. | 1:2 (6:3, 0:6, 5:10) | details | 04.09.2018 |
France: French Open - Singles - Qualification
United Kingdom: Wimbledon - Singles - Qualification