 USA: M15 Sunrise, FL - Doubles - Main |
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| Semi-finals | Andrade A./Rybakov A. | Bertran P./Mbithi M. | 2:0 (7:5, 6:3) | details | 09.02.2024 |
| Quarter-finals | Vance J./Whiting T. | Bertran P./Mbithi M. | 1:2 (7:5, 2:6, 0:10) | details | 08.02.2024 |
| 1/8-finals | Jones A./Vance J. | Bertran P./Mbithi M. | 1:2 (2:6, 6:3, 8:10) | details | 07.02.2024 |
 Dominican Republic: M15 Santo Domingo 3 - Doubles - Main |
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| 1/8-finals | Evans G./Mbithi M. | Saraiva Dos Santos P. A./Sibille I. | 1:2 (3:6, 6:1, 3:10) | details | 14.11.2023 |
| Dominican Republic: M15 Santo Domingo 2 - Doubles - Main |
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| Quarter-finals | Ruehl T./Saraiva Dos Santos P. A. | Evans G./Mbithi M. | 2:1 (1:6, 6:3, 10:5) | details | 12.11.2023 |
| 1/8-finals | Evans G./Mbithi M. | Pino S./Sibille I. | 2:1 (3:6, 6:3, 10:6) | details | 07.11.2023 |
| USA: M15 Tallahassee, FL - Doubles - Main |
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| 1/8-finals | Mbithi M./Sciglitano L. | Donnet E./Mayew W. | 1:2 (1:6, 6:4, 3:10) | details | 24.10.2023 |
| USA: M15 Ithaca, NY 2 - Doubles - Main |
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| 1/8-finals | Evans G./Mbithi M. | Borisiouk M./Van Sambeek F. | 0:2 (63:7, 4:6) | details | 04.10.2023 |
 Serbia: M15 Kursumlijska Banja 6 - Doubles - Main |
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| 1/8-finals | Mbithi M./Voelzke G. | Pavlovic L./Rakic S. | 0:2 (3:6, 4:6) | details | 20.06.2023 |
| Serbia: M25 Kursumlijska Banja 3 - Doubles - Main |
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| 1/8-finals | Jovic V./Ovcharenko O. | Dossetter C./Mbithi M. | 2:0 (6:3, 6:3) | details | 08.06.2023 |
| 1/8-finals | Benchetrit E./Popko D. | Dossetter C./Mbithi M. | CAN. | details | 07.06.2023 |
| USA: M15 Vero Beach, FL - Doubles - Main |
|---|
| Quarter-finals | Strode E./Whiting T. | Mbithi M./Nortey I. | 2:1 (5:7, 6:3, 10:3) | details | 28.04.2023 |
| 1/8-finals | Aubriot A./Scaglia M. | Mbithi M./Nortey I. | CAN. | details | 28.04.2023 |
| 1/8-finals | Daryabeigi S./Vasser O. | Mbithi M./Nortey I. | 1:2 (0:6, 6:3, 5:10) | details | 28.04.2023 |
| USA: M15 Sunrise, FL - Doubles - Main |
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| 1/8-finals | Foster-Estwick M./Mbithi M. | Kang K./Kim A. | WO. | details | 14.04.2023 |
| USA: M15 Naples, FL 2 - Doubles - Main |
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| 1/8-finals | Gomez F. A./Monzon I. | Bertran P./Mbithi M. | 2:1 (6:3, 4:6, 10:5) | details | 28.02.2023 |
| USA: M15 Weston, FL - Doubles - Main |
|---|
| 1/8-finals | Bouquet L./Folliot Q. | Bhangdia J./Mbithi M. | 2:1 (0:6, 6:2, 11:9) | details | 14.02.2023 |
| USA: M15 Ithaca, NY 2 - Doubles - Main |
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| 1/8-finals | Mbithi M./Ward E. | McNally J./Mitsui S. | 0:2 (1:6, 1:6) | details | 02.11.2022 |
| USA: M15 Tallahassee, FL - Doubles - Main |
|---|
| 1/8-finals | Bushamuka W./Mbithi M. | Harper P./Leote Prata M. | 0:2 (2:6, 2:6) | details | 26.10.2022 |
| 1/8-finals | Bushamuka W./Mbithi M. | Planinsek F. J./Ponce de Leon Gomila M. | CAN. | details | 25.10.2022 |
 Mexico: M15 Cancun 14 - Doubles - Main |
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| 1/8-finals | Mbithi M./Mendoza A. | Alvarado P./Alvarado Berrospi A. O. | WO. | details | 15.09.2022 |
| Mexico: M15 Cancun 13 - Doubles - Main |
|---|
| Quarter-finals | Al Allaf K./Tyler J. | Mbithi M./Tumasonis G. P. | 2:1 (65:7, 6:3, 10:4) | details | 08.09.2022 |
