Stadium: Court 4 Round: 54 Ground: Hardcourt outdoor
| ITF W25 Malibu | 2019/11/04 17:00 | AL Nabhani, Fatma v Pielet, Gianna | 3-6,4-6 |
| Austin, Singles W-ITF-USA-38B | 2019/10/23 15:00 | Tiphanie Lemaitre v Pielet, Gianna | 6-2,6-3 |
| Austin, Singles W-ITF-USA-38B | 2019/10/22 15:00 | Pielet, Gianna v Closs, Mary | 6-2,6-1 |
| ITF W15 Norman | 2019/10/03 16:55 | Pielet, Gianna v Broadus, Savannah | 6-4,4-6,4-6 |
| ITF W15 Norman | 2019/10/02 15:00 | Ingrid Gamarra Martins v Pielet, Gianna | 2-6,6-7 |
| ITF W15 Norman | 2019/10/01 15:00 | Pielet, Gianna v Kylie Mckenzie | 6-2,2-6,10-3 |
| ITF W15 Norman | 2019/09/30 15:00 | Pielet, Gianna v Ivana Corley | 6-3,6-2 |
| ITF W15 Lubbock | 2019/09/19 15:00 | Pielet, Gianna v Lauren Proctor | 3-6,4-6 |
| ITF W25 Malibu | 2019/11/04 17:00 | de Lucas Perez, Yesica v Lee, Sarah | 2-6,4-6 |
| ITF W60 Toronto | 2019/10/29 13:00 | Arianne Hartono v Lee, Sarah | 6-3,7-6 |
| ITF W60 Toronto | 2019/10/28 14:00 | Leduc, Catherine v Lee, Sarah | 1-6,3-6 |
| Metepec, Singles W-ITF-MEX-24A | 2019/10/23 18:10 | Lee, Sarah v Stacey Fung | 3-6,6-3,1-6 |
| Metepec, Singles W-ITF-MEX-24A | 2019/10/20 17:00 | Arisha Ladhani v Lee, Sarah | 0-6,2-6 |
| Metepec, Singles W-ITF-MEX-24A | 2019/10/19 15:00 | Lee, Sarah v Stacey Fung | 1-6,6-3,7-6 |
| Metepec, Singles W-ITF-MEX-24A | 2019/10/18 16:00 | Kelly Williford v Lee, Sarah | 2-6,5-7 |
| Metepec, Singles W-ITF-MEX-24A | 2019/10/17 20:55 | Portalatin, Karla v Lee, Sarah | 2-6,4-6 |