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