| ITF - Zephyrhills W75 | 05/08 21:25 | 25 | [167] Maria Kozyreva v Whitney Osuigwe [129] | 5-7,4-6 | |
| ITF - Zephyrhills W75 | 05/07 16:10 | 54 | [352] Maria Kozyreva v Maribella Zamarripa [309] | 6-4,7-5 | |
| ITF - Zephyrhills W75 | 05/06 21:05 | 54 | [352] Maria Kozyreva v Victoria Osuigwe [382] | 6-2,6-1 | |
| ITF - Bonita Springs W100 | 04/30 14:30 | 54 | Maria Kozyreva v Martina Okalova | 2-6,7-6,4-6 | |
| ITF - Bonita Springs W100 | 04/29 19:55 | 54 | Maria Kozyreva v Zoe Hitt | 6-0,6-0 | |
| ITF - Charlottesville W75 | 04/22 21:00 | 54 | Maria Kozyreva v Mia Yamakita | 6-4,4-6,3-6 | |
| ITF - Boca Raton W35 | 04/11 16:15 | 26 | [346] Maria Kozyreva v Katrina Scott [485] | 3-6,3-6 | |
| ITF - Boca Raton W35 | 04/10 18:05 | 25 | [212] Elvina Kalieva v Maria Kozyreva [346] | 3-6,4-6 | |
| ITF - Florianopolis W75 | 04/02 13:10 | 25 | Noelia Zeballos v Maria Kozyreva | 3-6,7-6,6-2 | |
| ITF - Sao Paulo W50 | 03/31 14:00 | 29 | [386] Miriana Tona v Maria Kozyreva [435] | 7-5,0-6,3-6 | |
| ITF - Sao Paulo W50 | 03/30 21:00 | 28 | [369] Daria Lodikova v Maria Kozyreva [435] | 4-6,3-6 | |
| ITF - Sao Paulo W50 | 03/30 16:20 | 27 | Maria Kozyreva v Ekaterina Makarova | Retired | |
| ITF - Sao Paulo W50 | 03/29 18:25 | 26 | [298] Giorgia Pedone v Maria Kozyreva [435] | 6-1,3-6,3-6 | |
| ITF - Sao Paulo W50 | 03/27 13:00 | 25 | [491] Naiktha Bains v Maria Kozyreva [435] | 1-6,7-6,2-6 | |
| ITF - Spring W35 | 02/28 19:55 | 25 | [426] Maria Kozyreva v Victoria Hu [311] | 6-7,6-4,3-6 | |
| ITF - Wesley Chapel W35 | 02/06 17:25 | 25 | [385] Sayaka Ishii v Maria Kozyreva [422] | 6-4,6-2 | |
| ITF - Vero Beach W75 | 01/27 17:30 | 28 | [196] Maria Kozyreva v Maria Lourdes Carle [185] | 7-5,4-6,5-7 | |
| ITF - Vero Beach W75 | 01/26 15:50 | 27 | Tatiana Pieri v Maria Kozyreva | 3-6,2-6 | |
| ITF - Vero Beach W75 | 01/25 21:20 | 26 | [196] Maria Kozyreva v Sachia Vickery [137] | 6-3,6-3 | |
| ITF - Vero Beach W75 | 01/24 15:50 | 25 | [363] Allie Kiick v Maria Kozyreva [196] | 6-2,6-7,2-6 | |
| ITF - Vero Beach W75 | 01/23 17:20 | 54 | [430] Ziva Falkner v Maria Kozyreva [196] | 2-6,2-6 | |
| ITF - Vero Beach W75 | 01/22 21:00 | 54 | Jessica Pieri v Maria Kozyreva | 3-6,5-7 | |
| ITF - Naples W35 | 01/18 14:55 | 26 | [196] Maria Kozyreva v Louisa Chirico [258] | 5-7,6-7 | |
| ITF - Naples W35 | 01/16 19:10 | 25 | [196] Maria Kozyreva v Anna Rogers [193] | 7-5,6-2 | |
| ITF - Naples W35 | 01/11 18:00 | 26 | [198] Maria Kozyreva v Clervie Ngounoue [492] | 2-6,3-6 | |
| ITF - Naples W35 | 01/10 15:00 | 25 | [390] Gabriela Lee v Maria Kozyreva [198] | 3-6,6-2,5-7 | |
| ITF - Austin W25 | 11/14 19:50 | 25 | [479] Maria Kozyreva v Madison Sieg [369] | 2-6,0-6 | |
| ITF - Charleston W100 | 11/08 15:00 | 25 | [131] Hailey Baptiste v Maria Kozyreva [498] | 7-6,1-6,6-4 | |
| ITF - Charleston W100 | 11/07 17:30 | 54 | [498] Maria Kozyreva v Anna Rogers [195] | 6-2,6-3 | |
| ITF - Charleston W100 | 11/06 18:50 | 54 | Maria Kozyreva v Maria C F Turchetto | 6-3,6-4 |
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.