Stadium: Court 6 Round: 54 Ground: Hardcourt outdoor
| Concord, Singles W-ITF-USA-31B | 2019/08/12 17:20 | Perez, Ellen v Whittle, Sophia | 2-6,6-7 |
| Landisville, Qualifications Simples W-ITF-USA-29A | 2019/08/10 15:00 | Whittle, Sophia v Lin Zhu | 0-6,1-6 |
| Landisville, Qualifications Simples W-ITF-USA-29A | 2019/08/09 15:00 | Whittle, Sophia v Katarina Zavatska | 6-3,6-3 |
| Landisville, Qualifications Simples W-ITF-USA-29A | 2019/08/08 18:30 | Perez, Ellen v Whittle, Sophia | 3-6,2-6 |
| Landisville, Qualifications Simples W-ITF-USA-29A | 2019/08/08 14:00 | Bai, Alison v Whittle, Sophia | 4-6,1-6 |
| ITF W25 Fort Worth | 2019/08/02 14:00 | Guillermo, Lorraine M v Whittle, Sophia | 6-0,7-6 |
| ITF W25 Fort Worth | 2019/08/01 14:00 | Whittle, Sophia v Chieh-Yu Hsu | 0-6,6-2,6-1 |
| ITF W25 Fort Worth | 2019/07/31 21:55 | Contreras Gomez, Fernanda v Whittle, Sophia | 4-6,0-6 |
| Concord, Singles W-ITF-USA-31B | 2019/08/12 16:59 | Papikian, Theresa v Mariia Kostiuk | 3-6,5-7 |
| Concord, Singles W-ITF-USA-31B | 2019/08/12 16:20 | Papikian, Theresa v Mariia Kostiuk | 3-6,5-7 |
| Landisville, Qualifications Simples W-ITF-USA-29A | 2019/08/05 18:45 | Okuno, Ayaka v Mariia Kostiuk | 6-2,6-2 |
| Ashland, Simples W-ITF-USA-23A | 2019/07/22 16:35 | Mariia Kostiuk v Rhiann Newborn | 3-6,1-6 |
| Osprey, Fl, Singles Qualifying W-ITF-USA-14A | 2019/04/22 14:30 | Mariia Kostiuk v van Nguyen, Chanelle | 5-7,2-6 |