Stadium: South 4 Round: 26 Ground: Hardcourt indoor
| ITF W15 Norman | 2019/10/01 15:00 | Guillermo, Lorraine M v Lisa-Marie Rioux | 6-4,7-5 |
| ITF W60 Templeton | 2019/09/24 17:20 | Montez, Pamela v Guillermo, Lorraine M | 6-4,6-2 |
| ITF W60 Templeton | 2019/09/23 21:15 | Lee, Sarah v Guillermo, Lorraine M | 3-6,3-6 |
| ITF W25 Redding | 2019/09/10 21:25 | Guillermo, Lorraine M v Talaba, Gabriela | 3-6,6-4,4-6 |
| ITF W25 Fort Worth | 2019/08/03 17:15 | Guillermo, Lorraine M v van Nguyen, Chanelle | 6-4,5-7,3-6 |
| 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 | Guillermo, Lorraine M v Amy Zhu | 6-4,6-3 |
| ITF W25 Fort Worth | 2019/07/31 16:55 | Talaba, Gabriela v Guillermo, Lorraine M | 3-6,6-1,4-6 |
| ITF W15 Norman | 2019/10/01 15:00 | Williford, Kelly v Chavatipon, Charlotte | 1-6,3-6 |
| ITF W60 Templeton | 2019/09/23 22:35 | Morgina, Anna v Chavatipon, Charlotte | 7-6,0-6,11-9 |
| Lawrence, Singles W-ITF-USA-34A | 2019/09/13 15:00 | Dasha Ivanova v Chavatipon, Charlotte | 2-6,5-7 |
| Lawrence, Singles W-ITF-USA-34A | 2019/09/12 16:00 | Jessica Failla v Chavatipon, Charlotte | 2-6,6-7 |
| Lawrence, Singles W-ITF-USA-34A | 2019/09/10 17:00 | Chavatipon, Charlotte v Rasheeda McAdoo | 6-4,6-1 |
| Arcadia, Singles Qualifying W-ITF-USA-07A | 2019/03/13 16:00 | Chavatipon, Charlotte v Kinard, Tori | 4-6,4-6 |
| Carson, Singles W-ITF-USA-06A | 2019/03/07 20:45 | Robin Montgomery v Chavatipon, Charlotte | 6-2,7-6 |
| ITF Women Mexico City | 2018/11/04 18:00 | Rychagova, Anastasiya v Chavatipon, Charlotte | 6-3,7-5 |