 Turkey: M15 Antalya 7 - Doubles - Main |
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| 1/8-finals | Aksu C./Saritas G. | Engel J./Karahan A. | 2:1 (3:6, 6:3, 10:8) | details | 19.03.2024 |
 Germany: M15 Oberhaching - Doubles - Main |
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| Quarter-finals | Engel J./Zick S. | Masur D./Poljicak M. | 0:2 (3:6, 4:6) | details | 15.02.2024 |
| 1/8-finals | Wassermann D./Wassermann M. | Engel J./Zick S. | 1:2 (6:2, 65:7, 7:10) | details | 13.02.2024 |
 Australia: Australian Open - Doubles - Main |
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| 1/16-finals | Cina F./Sakamoto R. | Engel J./Sickenberger T. | 2:0 (6:3, 6:2) | details | 22.01.2024 |
| Turkey: M15 Antalya 18 - Doubles - Main |
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| Quarter-finals | Engel J./Ujvary M. | Dumitru A./Palosi S. | 0:2 (2:6, 4:6) | details | 01.12.2023 |
| 1/8-finals | Denisov I./Fomin S. | Engel J./Ujvary M. | 1:2 (6:4, 64:7, 8:10) | details | 30.11.2023 |
| Germany: M15 Buschhausen - Doubles - Main |
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| Final | Oetzbach A./Schnaitter J. | Engel J./Kelm Y. | 2:0 (7:5, 6:4) | details | 16.09.2023 |
| Semi-finals | Engel J./Kelm Y. | Hermans M./Van Tilburg R. | 2:1 (6:4, 64:7, 10:6) | details | 15.09.2023 |
| Quarter-finals | Gentzsch T./Majdandzic M. | Engel J./Kelm Y. | WO. | details | 14.09.2023 |
| 1/8-finals | Hansen C./Zielinski M. | Engel J./Kelm Y. | 0:2 (2:6, 4:6) | details | 13.09.2023 |
| Germany: M15 Ueberlingen - Doubles - Main |
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| Quarter-finals | Engel J./Florig P. | Heller P./Ramskogler G. | 0:2 (4:6, 0:6) | details | 17.08.2023 |
| 1/8-finals | Engel J./Florig P. | Salazar D./Santibanez S. | 2:0 (6:4, 6:0) | details | 15.08.2023 |
| Germany: M25 Wetzlar - Doubles - Main |
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| 1/8-finals | Corbinais S./Dorofeev A. | Engel J./Schoenhaus M. | 2:0 (6:3, 6:3) | details | 02.08.2023 |
| Germany: M15 Uslar - Doubles - Main |
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| Semi-finals | Engel J./Schoenhaus M. | Beloborodko I./Nicod J. | 1:2 (6:4, 1:6, 8:10) | details | 21.07.2023 |
| Quarter-finals | Engel J./Schoenhaus M. | Gayk C./Gupta R. | 2:0 (6:0, 6:4) | details | 20.07.2023 |
| 1/8-finals | Dedura-Palomero M./Vasquez Gehrke A. | Engel J./Schoenhaus M. | 0:2 (1:6, 1:6) | details | 19.07.2023 |
| Germany: M25+H Kassel - Doubles - Main |
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| Quarter-finals | Engel J./Florig P. | Barnat J./Rikl P. | 0:2 (2:6, 3:6) | details | 13.07.2023 |
| 1/8-finals | Jansson O./Rovai S. | Engel J./Florig P. | 0:2 (0:6, 1:6) | details | 12.07.2023 |
| Germany: M15 Oberhaching - Doubles - Main |
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| 1/8-finals | Engel J./Zick S. | Jahn J./Masur D. | 0:2 (1:6, 2:6) | details | 14.02.2023 |
| Germany: M15 Allershausen - Doubles - Main |
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| 1/8-finals | Engel J./Uebel L. | Frawley J./Negritu Ch. | 0:2 (1:6, 3:6) | details | 30.08.2022 |