 USA: M15 Orange Park, FL - Singles - Main |
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| 1/16-finals | Segura M. | Haviland R. | 0:2 (62:7, 5:7) | details | 01.05.2024 |
| USA: M15 Vero Beach, FL - Singles - Main |
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| 1/8-finals | Grant W. | Segura M. | 2:1 (2:6, 6:1, 6:3) | details | 25.04.2024 |
| 1/16-finals | Jones A. | Segura M. | 0:2 (4:6, 0:6) | details | 24.04.2024 |
| USA: M15 Sunrise, FL - Singles - Main |
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| 1/16-finals | Segura M. | Andrade A. | 0:2 (1:6, 0:6) | details | 07.02.2024 |
| USA: M15 Boca Raton, FL - Singles - Main |
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| 1/8-finals | Segura M. | Nordquist A. | 0:2 (4:6, 3:6) | details | 17.11.2023 |
| 1/16-finals | Segura M. | Katz M. | 2:0 (7:5, 7:5) | details | 17.11.2023 |
| USA: M15 Tallahassee, FL - Singles - Main |
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| 1/16-finals | Corwin F. | Segura M. | 2:0 (6:2, 6:4) | details | 25.10.2023 |
| USA: M15 Orange Park, FL - Singles - Main |
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| 1/16-finals | Zhou Y. | Segura M. | 2:0 (6:4, 6:4) | details | 02.05.2023 |
| USA: M15 Vero Beach, FL - Singles - Main |
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| 1/16-finals | Vale D. | Segura M. | 2:0 (6:4, 7:67) | details | 26.04.2023 |
| USA: M15 Sunrise, FL - Singles - Main |
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| 1/8-finals | Segura M. | Bangoura S. | 0:2 (2:6, 3:6) | details | 14.04.2023 |
| 1/16-finals | Segura M. | Mbithi M. | 2:1 (6:2, 3:6, 6:2) | details | 13.04.2023 |
| USA: M15 Naples, FL 2 - Singles - Main |
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| 1/16-finals | Paty D. | Segura M. | 2:0 (6:2, 7:63) | details | 01.03.2023 |
| USA: M15 Palm Coast, FL - Singles - Main |
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| 1/8-finals | Segura M. | Bueno G. | 0:1 RET. (2:6, 0:3) | details | 09.02.2023 |
| 1/16-finals | Bonnaud A. | Segura M. | 1:2 (5:7, 7:5, 3:6) | details | 08.02.2023 |
| USA: M25 Wesley Chapel, FL - Singles - Main |
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| Quarter-finals | Segura M. | Perez A. | 0:2 (2:6, 3:6) | details | 27.01.2023 |
| 1/8-finals | Nanda G. | Segura M. | 1:2 (6:2, 63:7, 1:6) | details | 26.01.2023 |
| 1/16-finals | Segura M. | Bangoura S. | 2:1 (6:2, 4:6, 7:5) | details | 25.01.2023 |
 Ecuador: Guayaquil - Singles - Qualification |
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| Semi-finals | Burruchaga R. A. | Segura M. | 2:0 (6:4, 6:2) | details | 31.10.2022 |
| USA: M15 Vero Beach, FL - Singles - Main |
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| 1/16-finals | Segura M. | McNally J. | 0:2 (1:6, 3:6) | details | 27.04.2022 |
| USA: M15 Orange Park, FL - Singles - Main |
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| 1/16-finals | Segura M. | Pereira J. | 0:2 (2:6, 0:6) | details | 20.04.2022 |
| USA: M15 Vero Beach, FL - Singles - Main |
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| Quarter-finals | Segura M. | Clark E. | 0:2 (5:7, 4:6) | details | 22.10.2021 |
 World: UTR Pro Match Series - Singles - Main |
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| | Lock B. | Segura M. | 2:0 (6:2, 7:5) | details | 15.01.2021 |
| | Segura M. | Van Orderlain D. | 2:1 (4:6, 6:4, 6:3) | details | 14.01.2021 |
| | Segura M. | Arh A. | 2:0 (6:4, 6:2) | details | 11.01.2021 |
| | Chappell N. | Segura M. | CAN. | details | 10.01.2021 |
| World: UTR Pro Match Series - Singles - Main |
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| | Zink T. | Segura M. | 2:1 (7:62, 1:6, 6:4) | details | 18.12.2020 |
| USA: M15 Tallahassee, FL - Singles - Main |
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| 1/16-finals | Rocens M. | Segura M. | 2:1 (6:3, 3:6, 6:2) | details | 04.12.2019 |
| USA: Vero Beach - Singles - Main |
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| 1/16-finals | Segura M. | Garanganga T. | 0:2 (2:6, 3:6) | details | 30.04.2019 |
| USA: Vero Beach - Singles - Main |
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| 1/16-finals | Mejia N. | Segura M. | 2:0 (6:1, 6:2) | details | 25.04.2018 |