Stadium: Court 10 Round: 25 Ground: Hardcourt outdoor
| Claremont, Singles Qualifying W-ITF-USA-48A | 2019/10/08 17:00 | Lee, Sarah v Castillo Meza, Midori | 7-5,7-5 |
| Claremont, Singles Qualifying W-ITF-USA-48A | 2019/10/07 18:00 | Lee, Sarah v Gauvain, Sybille | 7-6,7-6 |
| ITF W60 Charleston | 2019/09/30 19:20 | Gatica, Barbara v Lee, Sarah | 6-3,6-2 |
| ITF W60 Templeton | 2019/09/23 21:15 | Lee, Sarah v Guillermo, Lorraine M | 3-6,3-6 |
| ITF W15 Lubbock | 2019/09/17 17:10 | Villarreal, Andrea Renee v Lee, Sarah | 6-4,7-6 |
| Lawrence, Singles W-ITF-USA-34A | 2019/09/11 16:25 | Miyamoto, Ayumi v Lee, Sarah | 6-3,6-2 |
| Monzon, Singles Qualifying W-ITF-ESP-07A | 2019/05/07 08:00 | Zoe Kruger v Lee, Sarah | 5-7,6-3,10-8 |
| Tabarka, Singles W-ITF-TUN-18A | 2019/05/02 13:40 | Lutzeier, Lena v Lee, Sarah | 6-0,6-2 |
| ITF W25 Redding | 2019/09/10 17:00 | Maria Mateas v Valdes, Rianna | 7-6,6-4 |
| ITF W25 Redding | 2019/09/09 17:00 | Valdes, Rianna v Kulikov, Angela | 7-5,6-2 |
| ITF W15 Cancun | 2019/07/05 13:30 | Valdes, Rianna v Wijesundera, Rushri | 6-2,6-7,6-4 |
| ITF W15 Cancun | 2019/07/04 15:35 | Valdes, Rianna v Williford, Kelly | 6-2,0-6,7-5 |
| ITF W15 Cancun | 2019/07/03 15:35 | Emma Lene v Valdes, Rianna | 2-6,3-6 |
| ITF W15 Cancun | 2019/07/01 18:30 | Lebesheva, Darya v Valdes, Rianna | 0-6,0-6 |
| ITF W15 Cancun | 2019/07/01 14:30 | Duva, Andrea v Valdes, Rianna | 1-6,1-6 |