 USA: Champaign - Doubles - Main |
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| 1/8-finals | Smith J. P./Verbeek S. | Westphal M./Winegar T. | 2:0 (6:4, 6:2) | details | 15.11.2023 |
 Canada: M25 Saint-Augustin - Doubles - Main |
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| Final | Broom C./Jones B. | Westphal M./Winegar T. | 1:2 (6:4, 3:6, 9:11) | details | 28.10.2023 |
| Semi-finals | Draxl L./Sorbo J. | Westphal M./Winegar T. | 1:2 (65:7, 6:2, 6:10) | details | 27.10.2023 |
| Quarter-finals | Martin D./Muamba N. | Westphal M./Winegar T. | 0:2 (4:6, 3:6) | details | 26.10.2023 |
| 1/8-finals | Westphal M./Winegar T. | Aguilar J. C. M./Sigouin B. | 2:0 (6:4, 6:3) | details | 25.10.2023 |
 Poland: M25 Bielsko Biala - Doubles - Main |
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| Quarter-finals | Horak O./Siniakov D. | Bielinskyi V./Westphal M. | 2:0 (7:5, 6:4) | details | 17.08.2023 |
| 1/8-finals | Bielinskyi V./Westphal M. | Sakellaridis D./Sakellaridis M. | 2:1 (0:6, 6:1, 10:7) | details | 15.08.2023 |
 Romania: M25 Pitesti - Doubles - Main |
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| Quarter-finals | Denolly C./Palosi S. | Nesterov P./Westphal M. | 2:0 (6:4, 6:4) | details | 03.08.2023 |
| 1/8-finals | Coman M. A./Dumitru A. C. | Nesterov P./Westphal M. | 0:2 (4:6, 3:6) | details | 01.08.2023 |
 Netherlands: Amersfoort - Doubles - Main |
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| 1/8-finals | Westphal M./Winegar T. | Den Ouden G./Van Sambeek F. | 1:2 (3:6, 7:65, 8:10) | details | 19.07.2023 |
| USA: M25 Pensacola, FL - Doubles - Main |
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| Quarter-finals | Westphal M./Winegar T. | Bertran P./Jones B. | 0:2 (3:6, 63:7) | details | 19.05.2023 |
| 1/8-finals | Kissell C./Vos M. | Westphal M./Winegar T. | 0:2 (1:6, 2:6) | details | 17.05.2023 |
| 1/8-finals | Vance J./Vance J. | Westphal M./Winegar T. | CAN. | details | 17.05.2023 |
| USA: US Open - Doubles - Main |
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| Final | Westphal M./Wong C. | Bielinskyi V./Nesterov P. | 2:1 (6:3, 5:7, 10:1) | details | 11.09.2021 |
| Semi-finals | Westphal M./Wong C. | Kuzuhara B./Poljicak M. | 2:1 (6:4, 4:6, 10:4) | details | 11.09.2021 |
| Quarter-finals | Westphal M./Wong C. | Anthrop J./Kittay B. | 2:1 (4:6, 6:3, 10:7) | details | 10.09.2021 |
| 1/8-finals | Kym J./Pinnington Jones J. | Westphal M./Wong C. | CAN. | details | 08.09.2021 |
| 1/8-finals | Colby R./Kim A. | Westphal M./Wong C. | 1:2 (6:4, 2:6, 3:10) | details | 08.09.2021 |
 United Kingdom: Wimbledon - Doubles - Main |
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| 1/8-finals | Jurajda A./Westphal M. | Florig P./Rehberg M. H. | 1:2 (66:7, 6:4, 7:10) | details | 08.07.2021 |
| 1/16-finals | Jurajda A./Westphal M. | Brady P./Tarvet O. | 2:0 (6:1, 6:4) | details | 07.07.2021 |
 France: French Open - Doubles - Main |
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| 1/16-finals | Fils A./Mpetshi Perricard G. | Bailly P. Y./Westphal M. | 2:0 (6:1, 7:64) | details | 07.06.2021 |
| France: French Open - Doubles - Main |
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| 1/8-finals | Garcian A./Westphal M. | Oliveira B./Rodrigues N. | 1:2 (5:7, 7:64, 6:10) | details | 07.10.2020 |
| 1/16-finals | Garcian A./Westphal M. | Blanch D./Boscardin Dias P. | 2:0 (6:3, 6:3) | details | 06.10.2020 |
 Australia: Australian Open - Doubles - Main |
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| 1/16-finals | Ionel N. D./Riedi L. | Mpetshi Perricard G./Westphal M. | 2:0 (6:3, 6:2) | details | 27.01.2020 |
Tunisia: M15 Monastir 30 - Singles - Main
Finland: M15 Helsinki - Singles - Main
Turkey: M15 Antalya 10 - Singles - Main
Spain: M15 Melilla - Singles - Main