Stadium: Court 4 Round: 25 Ground: Clay
| ITF - W15 Sharm El Sheikh | 2021/04/07 07:00 | Kostenko, L. v Andre Lukosiute | 2-6,4-6 |
| ITF - W15 Sharm El Sheikh | 2021/03/31 14:20 | Sukhotina, Anastasia v Kostenko, L. | 6-4,6-1 |
| ITF - W15 Sharm El Sheikh | 2021/03/30 08:15 | Andre Lukosiute v Kostenko, L. | 0-6,3-6 |
| ITF - W15 Sharm El Sheikh | 2021/03/29 10:00 | Haine Ogata v Kostenko, L. | 4-6,6-7 |
| 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 W25 Pelham | 2021/05/16 15:00 | Brantmeier, Reese v Ng, Taylor | 2-6,6-3,10-2 |
| ITF W100 Charleston | 2021/05/03 14:00 | Anna Danilina v Ng, Taylor | 6-2,6-4 |
| UTR Pro Tennis Series Charleston Women | 2021/03/06 19:00 | Ng, Taylor v Mayuka Aikawa | 6-3,4-6,3-5 |
| UTR Pro Tennis Series Charleston Women | 2021/03/05 17:00 | Filippa Bruu-Syversen v Ng, Taylor | 1-6,2-6 |
| UTR Pro Tennis Series Charleston Women | 2021/03/04 15:30 | Shaffer, Kennedy v Ng, Taylor | 7-6,6-1 |
| UTR Pro Tennis Series Charleston Women | 2021/03/02 16:00 | Games, Leyden v Ng, Taylor | 3-6,0-6 |
| UTR Pro Tennis Series Charleston Women | 2021/03/01 18:30 | Ng, Taylor v Rebeca Pereira | 6-1,5-2 |
| UTR Pro Tennis Series California Women | 2021/02/01 17:30 | Ng, Taylor v Priya Nelson | 6-3,5-1 |