Stadium: Court 4 Round: 44 Ground: Hardcourt outdoor
| ITF - W15 Antalya | 2019/11/13 09:50 | Haine Ogata v Kostenko, L. | 4-6,1-6 |
| ITF - W15 Sharm El Sheikh | 2021/03/28 14:00 | Haine Ogata v Glaude, Laure Line | 6-4,6-3 |
| ITF - W15 Sharm El Sheikh | 2021/03/22 07:00 | Arina Gabriela Vasilescu v Haine Ogata | 6-7,7-6,12-10 |
| ITF - W15 Sharm El Sheikh | 2021/03/21 09:30 | Haine Ogata v Alina Nesmianovych | 6-2,6-2 |
| ITF - W15 Antalya | 2021/02/01 11:00 | Haine Ogata v Kimmelmann, Julia | 2-6,0-6 |
| ITF - W15 Antalya | 2021/01/28 06:00 | Haine Ogata v Honoka Kobayashi | 6-7,3-6 |
| ITF - W15 Antalya | 2021/01/17 09:00 | Beatris Spasova v Haine Ogata | 6-3,2-6,10-7 |
| ITF W15 Palmanova | 2020/02/06 09:00 | Haine Ogata v Yvonne Cavalle-Reimers | 0-6,0-6 |
| ITF W15 Palmanova | 2020/02/05 09:00 | Sofia Milatova v Haine Ogata | 6-4,0-6,0-6 |
| ITF - W15 Sharm El Sheikh | 2021/03/28 09:30 | Badawi, Amira v Kostenko, L. | 3-6,6-3,9-11 |
| ITF - W15 Sharm El Sheikh | 2021/03/22 09:00 | Olga Helmi v Kostenko, L. | 6-1,6-4 |
| ITF - W15 Shymkent | 2021/02/11 04:00 | Sharipova, Sabina v Kostenko, L. | 6-0,6-2 |
| ITF - W15 Shymkent | 2021/02/10 04:00 | Kostenko, L. v Kachur, Karyna | 6-4,7-6 |
| ITF - W15 Shymkent | 2021/02/03 07:45 | Kostenko, L. v Mishina, Daria | 4-6,1-6 |
| ITF W15 Haabneeme | 2020/11/17 08:00 | Kostenko, L. v Glanzer, Daniela | 3-6,2-6 |
| ITF W25 Frydek Mistek | 2020/09/13 09:00 | Shoshyna, Anastasiya v Kostenko, L. | 6-1,6-0 |
| ITF W15 Varna | 2020/09/10 07:55 | Rosca, Ioana Loredana v Kostenko, L. | 6-0,6-2 |