Stadium: Centre Court Round: 25 Ground: Hardcourt outdoor
| ITF Women Hua Hin | 2018/05/02 02:30 | Lorraine M. Guillermo v Shuyue Ma | 6-7,2-6 |
| ITF Women Hua Hin | 2018/05/01 02:30 | Lorraine M. Guillermo v Amy Zhu | 6-3,6-3 |
| ITF Women Dothan Qual | 2018/04/15 18:00 | Lorraine M. Guillermo v Quinn Gleason | 6-3,6-7,2-6 |
| ITF Women Pelham | 2018/04/10 17:15 | Lorraine M. Guillermo v Tamaryn Hendler | 5-7,4-6 |
| ITF Women Rancho Santa Fe | 2018/02/22 20:40 | Lorraine M. Guillermo v Ann Li | 6-7,3-6 |
| ITF Women Rancho Santa Fe | 2018/02/21 22:50 | Kayla Day v Lorraine M. Guillermo | 3-6,6-7 |
| ITF Women Rancho Santa Fe Qual | 2018/02/20 18:00 | Lorraine M. Guillermo v Michelle Larcher de Brito | 6-2,6-4 |
| ITF Women Rancho Santa Fe Qual | 2018/02/19 17:30 | Caroline Werner v Lorraine M. Guillermo | 3-6,2-6 |
| ITF Women Hua Hin | 2018/05/01 02:30 | Zhibek Kulambayeva v Alexandra Walters | 6-3,6-3 |
| ITF Women Cairo | 2018/04/24 08:00 | Irina Fetecau v Alexandra Walters | 6-0,6-0 |
| ITF Women Sharm El Sheikh | 2018/04/18 08:00 | Dasha Ivanova v Alexandra Walters | 6-3,3-6,6-1 |
| ITF Women Sharm El Sheikh | 2018/04/09 08:00 | Alexandra Walters v Rio Kitagawa | 3-6,2-6 |
| ITF Women Sharm El Sheikh | 2018/04/08 08:00 | Alexandra Walters v Fang-Hsien Wu | 6-4,0-6,6-3 |
| ITF Women Canberra Qual | 2018/03/25 23:00 | Alexandra Walters v Ramona Mataruga | 4-6,2-6 |
| ITF Women Canberra Qual | 2018/03/24 23:00 | Alexandra Walters v Ashleigh Simes | 6-0,6-4 |
| ITF Women Canberra Qual | 2018/03/16 23:00 | Alexandra Walters v Annerly Poulos | 1-6,2-6 |