| ITF W80 Tyler | 10/27 19:20 | 27 | [171] Maria Kozyreva v Kayla Day [94] | 4-6,4-6 | |
| ITF W80 Tyler | 10/27 00:25 | 26 | [445] Jessica Failla v Maria Kozyreva [171] | 4-6,6-2,10-12 | |
| ITF W80 Tyler | 10/25 14:50 | 25 | [171] Maria Kozyreva v Gabriela Lee [445] | 6-1,3-6,6-4 | |
| ITF W80 Tyler | 10/24 16:50 | 54 | Maria Kozyreva v Jade Otway | 6-1,6-1 | |
| ITF W80 Tyler | 10/23 15:00 | 54 | Maria Kozyreva v Danielle Willson | 3-6,6-1,6-1 | |
| ITF W60 Rancho Santa Fe | 10/13 18:00 | 27 | [175] Maria Kozyreva v Lulu Sun [247] | 6-7,2-6 | |
| ITF W60 Rancho Santa Fe | 10/12 16:45 | 26 | [175] Maria Kozyreva v Hanna Chang [315] | 7-6,6-4 | |
| ITF W60 Rancho Santa Fe | 10/11 19:35 | 25 | [200] Tatiana Prozorova v Maria Kozyreva [175] | 3-6,3-6 | |
| ITF W60 Rancho Santa Fe | 10/10 18:35 | 54 | Maria Kozyreva v Britney Chiu | 6-3,6-2 | |
| ITF W60 Rancho Santa Fe | 10/09 22:50 | 54 | Maria Kozyreva v Theresa Papikian | 6-1,6-2 | |
| ITF W25 Redding | 10/05 17:55 | 26 | Sayaka Ishii v Maria Kozyreva | 6-7,6-3,6-1 | |
| ITF W25 Redding | 10/04 17:00 | 25 | Alanis Hamilton v Maria Kozyreva | 2-6,4-6 | |
| ITF W60 Templeton | 09/26 16:50 | 54 | [181] Maria Kozyreva v Ganna Poznikhirenko [483] | 0-6,2-6 | |
| ITF W60 Templeton | 09/25 20:35 | 54 | [312] Raveena Kingsley v Maria Kozyreva [181] | 2-6,6-1,3-6 | |
| ITF W60 Berkeley | 09/20 16:50 | 25 | [153] Katherine Sebov v Maria Kozyreva [173] | 6-3,6-3 | |
| ITF W60 Berkeley | 09/19 18:10 | 54 | Maria Kozyreva v Tori Kinard | 6-4,6-4 | |
| ITF W60 Berkeley | 09/18 23:40 | 54 | Maria Kozyreva v Chelsea Fontenel | 6-1,6-1 | |
| ITF W100 Landisville | 08/07 15:35 | 54 | [295] Robin Anderson v Maria Kozyreva [179] | 6-2,6-4 | |
| ITF W60 Lexington | 08/01 14:00 | 54 | [344] Grace Min v Maria Kozyreva [179] | 6-4,6-1 | |
| ITF W60 Lexington | 07/31 15:25 | 54 | Epiphany B. Turner v Maria Kozyreva | 1-6,0-6 | |
| ITF W60 Evansville | 07/17 17:00 | 54 | [174] Maria Kozyreva v Maribella Zamarripa [277] | 5-7,6-1,3-6 | |
| ITF W60 Sumter | 06/14 14:00 | 25 | Alexis Blokhina v Maria Kozyreva | 6-2,6-2 | |
| ITF W40 La Marsa | 06/08 09:00 | 26 | [352] Jana Kolodynska v Maria Kozyreva [209] | 3-6,6-2,6-2 | |
| ITF W40 La Marsa | 06/07 09:00 | 25 | Maria Kozyreva v Sarah Ben Aba | 6-1,6-0 | |
| ITF W40 La Marsa | 06/05 10:20 | 54 | Maria Kozyreva v Emma Tothova | 6-4,5-7,6-3 | |
| ITF W40 La Marsa | 06/04 12:30 | 54 | Maria Kozyreva v Diana Maria Mihail | 6-1,6-0 | |
| ITF W25 La Marsa | 05/31 10:20 | 25 | [267] Anastasia Gasanova v Maria Kozyreva [209] | 6-3,6-3 | |
| ITF W25 La Marsa | 05/29 09:00 | 54 | Maria Kozyreva v Valeria Koussenkova | 6-3,6-2 | |
| ITF W25 La Marsa | 05/28 14:00 | 54 | Maria Kozyreva v Samar Ben Smida | 6-0,6-0 | |
| ITF W25 Kachreti | 05/17 07:00 | 25 | [397] Ekaterine Gorgodze v Maria Kozyreva [274] | 6-3,6-3 |
Maria Alexandrovna Kozyreva (born 22 May 1999) is a Russian tennis player.
Kozyreva has a career-high singles ranking by the WTA of 422, achieved on 5 February 2024. She also has a career-high WTA doubles ranking of 167, reached on 16 October 2023.
Kozyreva won her first major ITF title at the 2022 Tyler Pro Challenge, in the doubles draw, partnering Ashley Lahey.