Stadium: Court 7 Round: 54 Ground: Clay
| ITF - W15 Sao Paulo | 2019/09/28 14:15 | Thaisa Grana Pedretti v Gatica, Barbara | 6-1,4-6,6-3 |
| ITF - W15 Sao Paulo | 2019/09/27 14:00 | Romina Ccuno v Gatica, Barbara | 0-6,1-6 |
| ITF - W15 Sao Paulo | 2019/09/26 16:55 | Martinich, Ivania v Gatica, Barbara | 5-7,7-5,3-6 |
| ITF - W15 Sao Paulo | 2019/09/24 14:05 | Hudson, Althea v Gatica, Barbara | 2-6,0-6 |
| ITF W25 Guayaquil | 2019/08/21 17:05 | Gatica, Barbara v Alexandra Osborne | 4-6,6-3,5-7 |
| ITF W25 Guayaquil | 2019/08/16 16:00 | Stewart, Katerina v Gatica, Barbara | 6-3,4-6,6-1 |
| ITF W25 Guayaquil | 2019/08/15 17:10 | Emily Fanning v Gatica, Barbara | 1-6,4-6 |
| ITF W25 Guayaquil | 2019/08/14 15:00 | Nefedova, Anastasia Evgenyevna v Gatica, Barbara | 5-7,0-6 |
| 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 |
| Tabarka, Singles W-ITF-TUN-18A | 2019/05/01 12:05 | Kruijer, Nina v Lee, Sarah | 4-6,5-7 |
| Tabarka, Singles W-ITF-TUN-18A | 2019/04/24 12:35 | Lee, Sarah v Nefisa Berberovic | 5-7,6-7 |
| Tabarka, Singles W-ITF-TUN-18A | 2019/04/11 11:05 | Lee, Sarah v Temin, Marie | 2-6,1-6 |