| WTA - Brisbane | 12/31 04:55 | 24 | [69] Ana Bogdan v Marta Kostyuk [39] | 6-4,3-6,3-6 | |
| WTA - Peking | 10/04 06:05 | 26 | [22] Liudmila Samsonova v Marta Kostyuk [44] | 6-4,6-7,7-5 | |
| WTA - Peking | 10/03 07:05 | 25 | [44] Marta Kostyuk v Ons Jabeur [7] | 7-6,6-1 | |
| WTA - Peking | 09/30 04:50 | 24 | [45] Marta Kostyuk v Elisabetta Cocciaretto [32] | 1-6,6-3,6-4 | |
| WTA - Tokio | 09/26 08:15 | 25 | [13] Daria Kasatkina v Marta Kostyuk [45] | 3-6,6-4,6-3 | |
| WTA - Guadalajara | 09/19 23:30 | 25 | [42] Marta Kostyuk v Jelena Ostapenko [16] | 2-6,3-6 | |
| WTA - Guadalajara | 09/18 18:35 | 24 | [42] Marta Kostyuk v Stacey Fung [226] | 6-3,2-6,6-0 | |
| WA - San Diego | 09/14 02:30 | 26 | [20] Beatriz Haddad Maia v Marta Kostyuk [45] | 7-5,6-7,6-2 | |
| WA - San Diego | 09/12 18:30 | 25 | [24] Magda Linette v Marta Kostyuk [45] | 2-6,6-7 | |
| US Open - Dames | 08/28 18:35 | 23 | [4] Elena Rybakina v Marta Kostyuk [39] | 6-2,6-1 | |
| WTA - Cincinnati | 08/14 17:30 | 24 | [43] Jasmine Paolini v Marta Kostyuk [32] | 6-2,6-1 | |
| WTA - Montreal | 08/08 19:35 | 24 | [32] Marta Kostyuk v Qinwen Zheng [24] | 2-6,6-1,3-6 | |
| WTA - Washington | 08/04 18:55 | 27 | [18] Liudmila Samsonova v Marta Kostyuk [34] | 6-4,6-2 | |
| WTA - Washington | 08/03 18:05 | 26 | [34] Marta Kostyuk v Caroline Garcia [6] | 6-2,6-3 | |
| WTA - Washington | 07/31 17:30 | 25 | [44] Bianca Andreescu v Marta Kostyuk [34] | 6-2,3-6,6-7 | |
| Wimbledon - Dames | 07/08 16:35 | 25 | [36] Marta Kostyuk v Madison Keys [18] | 4-6,1-6 | |
| Wimbledon - Dames | 07/07 10:00 | 24 | [36] Marta Kostyuk v Paula Badosa [35] | Retired | |
| Wimbledon - Dames | 07/05 11:30 | 23 | [8] Maria Sakkari v Marta Kostyuk [36] | 6-0,5-7,2-6 | |
| WTA - Birmingham | 06/20 17:00 | 25 | [34] Marta Kostyuk v Anastasia Potapova [21] | 7-6,5-7,4-6 | |
| French Open - Dames | 05/28 09:00 | 23 | [39] Marta Kostyuk v Aryna Sabalenka [2] | 3-6,2-6 | |
| WTA - Rome | 05/14 13:00 | 25 | [35] Paula Badosa v Marta Kostyuk [40] | 6-4,6-2 | |
| WTA - Rome | 05/12 12:10 | 24 | [56] Claire Liu v Marta Kostyuk [40] | 0-6,4-6 | |
| WTA - Madrid | 04/27 11:25 | 24 | [36] Marta Kostyuk v Camila Osorio [115] | 6-3,4-6,3-6 | |
| Billie Jean King Cup | 04/15 08:00 | 14 | [38] Marta Kostyuk v Barbora Krejcikova [12] | 3-6,6-1,6-4 | |
| Billie Jean King Cup | 04/14 08:20 | 14 | [38] Marta Kostyuk v Marketa Vondrousova [82] | 2-6,1-6 | |
| WTA - Miami | 03/23 19:25 | 24 | [26] Anastasia Potapova v Marta Kostyuk [38] | 6-1,6-3 | |
| WTA - Miami | 03/21 15:00 | 23 | [38] Marta Kostyuk v Elisabetta Cocciaretto [49] | 6-3,6-2 | |
| WTA - Indian Wells | 03/09 01:10 | 23 | [103] Rebecca Peterson v Marta Kostyuk [40] | 7-5,5-7,7-5 | |
| WTA - Austin | 03/05 20:00 | 29 | [88] Varvara Gracheva v Marta Kostyuk [52] | 3-6,5-7 | |
| WTA - Austin | 03/04 20:30 | 28 | [38] Danielle Collins v Marta Kostyuk [52] | 4-6,3-6 |
Wikipedia - Marta Kostjoek
Marta Olehivna Kostjoek (Oekraïens: Марта Олегівна Костюк) (Kiev, 28 juni 2002) is een tennisspeelster uit Oekraïne. Zij begon op vijfjarige leeftijd met tennis. Zij speelt rechtshandig en heeft een tweehandige backhand. Zij is actief in het internationale tennis sinds 2016.