 Tunisia: M15 Monastir 3 - Doubles - Main |
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| Quarter-finals | Negritu Ch./Zhu M. | Donald M./Nicod J. | 2:1 (7:5, 4:6, 12:10) | details | 18.01.2024 |
| 1/8-finals | Hamza Reguig S./Tessa L. | Donald M./Nicod J. | 0:2 (2:6, 2:6) | details | 17.01.2024 |
| Tunisia: M15 Monastir 2 - Doubles - Main |
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| Quarter-finals | Kuhn N./Perez Sanz D. | Donald M./Nicod J. | 2:0 (6:4, 6:4) | details | 11.01.2024 |
| 1/8-finals | Oueslati M. A./Trifi A. | Donald M./Nicod J. | 0:2 (2:6, 1:6) | details | 10.01.2024 |
 Greece: M15 Heraklion 4 - Doubles - Main |
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| 1/8-finals | Donald M./Nicod J. | Parker S./Quayle D. | 1:2 (4:6, 6:3, 3:10) | details | 24.10.2023 |
| Greece: M15 Heraklion 3 - Doubles - Main |
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| Quarter-finals | Kielan S./Prihodko O. | Donald M./Nicod J. | 2:0 (6:2, 6:3) | details | 19.10.2023 |
| 1/8-finals | Kypriotis E./Schinas S. | Donald M./Nicod J. | 0:2 (3:6, 2:6) | details | 17.10.2023 |
 Romania: M15 Arad - Doubles - Main |
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| Final | Klok D./Tomescu D. A. | Donald M./Nicod J. | 2:1 (6:4, 3:6, 10:6) | details | 29.09.2023 |
| Semi-finals | Donald M./Nicod J. | Campana F./Noce G. M. | 2:0 (6:2, 6:2) | details | 28.09.2023 |
| Quarter-finals | Cazacu D. N./Flores J. | Donald M./Nicod J. | 0:2 (5:7, 4:6) | details | 27.09.2023 |
| 1/8-finals | Bocchi L./Carnevalle L. | Donald M./Nicod J. | 1:2 (2:6, 6:4, 5:10) | details | 25.09.2023 |
 Czech Republic: M25 Pardubice - Doubles - Main |
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| Semi-finals | Barnat J./Duda F. | Donald M./Nicod J. | 2:0 (7:68, 6:2) | details | 22.09.2023 |
| Quarter-finals | Donald M./Nicod J. | Benson M./Horak V. | 2:0 (6:2, 6:2) | details | 21.09.2023 |
| 1/8-finals | Donald M./Nicod J. | Sakellaridis D./Sakellaridis M. | 2:0 (6:2, 7:5) | details | 19.09.2023 |
 Slovenia: M15 Store - Doubles - Main |
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| Final | Donski A./Kellovsky D. | Donald M./Nicod J. | 0:2 (2:6, 2:6) | details | 24.06.2023 |
| Semi-finals | Dominko S./Kupcic J. | Donald M./Nicod J. | 0:2 (4:6, 4:6) | details | 23.06.2023 |
| Quarter-finals | Donald M./Nicod J. | Bocchi L./Farjat T. | WO. | details | 21.06.2023 |
| 1/8-finals | Kriznik M./Planinsek F. J. | Donald M./Nicod J. | 1:2 (6:2, 62:7, 3:10) | details | 20.06.2023 |
| Czech Republic: M25 Jablonec nad Nisou - Doubles - Main |
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| Semi-finals | Donald M./Nicod J. | Fanselow S./Kellovsky D. | 0:2 (3:6, 4:6) | details | 02.06.2023 |
| Quarter-finals | Donald M./Nicod J. | Damm M./Satral J. | WO. | details | 01.06.2023 |
| 1/8-finals | Kopp S./Oberleitner N. | Donald M./Nicod J. | 0:2 (4:6, 4:6) | details | 31.05.2023 |
 Germany: M15 Meerbusch - Doubles - Main |
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| Semi-finals | Donald M./Nicod J. | Gadamauri B./Negritu Ch. | 1:2 (7:65, 2:6, 8:10) | details | 28.04.2023 |
| Quarter-finals | Donald M./Nicod J. | Boehler D./Larwig N. | 2:0 (6:1, 6:3) | details | 27.04.2023 |
| 1/8-finals | Cerny M./Recek D. | Donald M./Nicod J. | 0:2 (4:6, 3:6) | details | 25.04.2023 |
| Czech Republic: Pardubicka juniorka - Doubles - Main |
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| Final | Donald M./Nicod J. | Barton H./Mrva M. | 2:0 (6:2, 6:2) | details | 11.08.2022 |
| Semi-finals | Donald M./Nicod J. | Vrba J./Kratochvil O. | 2:0 (6:0, 7:5) | details | 10.08.2022 |
| Quarter-finals | Donald M./Nicod J. | Kalina V./Velik L. | WO. | details | 09.08.2022 |
| 1/8-finals | Donald M./Nicod J. | Bien D./Mach S. | 2:0 (6:1, 6:1) | details | 08.08.2022 |
 Australia: Australian Open - Doubles - Main |
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| 1/8-finals | Donald M./Nicod J. | Kuzuhara B./Wong C. | 0:2 (3:6, 4:6) | details | 25.01.2022 |
| 1/16-finals | Miller K./Rahman Y. | Donald M./Nicod J. | 0:2 (1:6, 1:6) | details | 24.01.2022 |
