Stadium: Court 8 Round: 54 Ground: Hardcourt outdoor
| ITF W15 Norman | 2019/10/03 15:00 | Guillermo, Lorraine M v Charlotte Chavatipon | 6-3,6-7,6-4 |
| Rancho Santa Fe, Ca, Singles W-ITF-USA-05A | 2020/02/23 19:00 | Eudice Chong v Charlotte Chavatipon | 6-2,6-3 |
| ITF W25 Vero Beach | 2020/01/20 16:00 | Osaka, Mari v Charlotte Chavatipon | 1-6,7-6,10-5 |
| ITF W25 Daytona Beach | 2020/01/14 16:40 | Guiomar Maristany Zuleta De Reales v Charlotte Chavatipon | 6-4,6-3 |
| ITF W60 Las Vegas | 2019/11/06 17:00 | Glatch, Alexa v Charlotte Chavatipon | 7-6,6-4 |
| ITF W60 Las Vegas | 2019/11/05 16:55 | Brettkelly, Mirabelle v Charlotte Chavatipon | 2-6,1-6 |
| ITF W60 Las Vegas | 2019/11/04 16:55 | Charlotte Chavatipon v Cako, Jacqueline | 6-4,6-4 |
| Austin, Singles W-ITF-USA-38B | 2019/10/26 17:30 | Turati, Bianca v Charlotte Chavatipon | 6-3,6-2 |
| Austin, Singles W-ITF-USA-38B | 2019/10/25 16:00 | Charlotte Chavatipon v Sysoeva, Anastasia | 6-2,6-1 |
| Rancho Santa Fe, Ca, Singles W-ITF-USA-05A | 2020/02/24 21:10 | Guillermo, Lorraine M v Olga Danilovic | 4-6,6-2,1-6 |
| ITF W25 Malibu | 2020/01/14 21:00 | Guillermo, Lorraine M v Solymar Colling | 2-6,3-6 |
| ITF W25 Malibu | 2020/01/13 18:30 | Guillermo, Lorraine M v Tobita, Alyssa | 6-0,6-2 |
| ITF W15 Norman | 2019/12/04 20:55 | Jessica Failla v Guillermo, Lorraine M | 6-4,6-1 |
| Tucson, Singles W-ITF-USA-46A | 2019/11/22 18:00 | Kobelt, Madeleine v Guillermo, Lorraine M | 7-5,1-6,6-3 |
| Tucson, Singles W-ITF-USA-46A | 2019/11/19 16:30 | Guillermo, Lorraine M v Gabriella Price | 6-2,6-3 |
| Tucson, Singles W-ITF-USA-46A | 2019/11/18 16:30 | Guillermo, Lorraine M v Jessica Failla | 6-2,7-6 |
| ITF W25 Malibu | 2019/11/05 19:30 | Guillermo, Lorraine M v Contreras Gomez, Fernanda | 6-2,3-6,5-10 |