| ITF Women Klosters | 2018/06/16 08:00 | Olivia S-Williams v Maria Michaela Fiacan | 6-7,6-3,6-4 |
| ITF Women Klosters | 2018/06/17 08:00 | Tayisiya Morderger v Olivia S-Williams | 6-0,6-0 |
| ITF Women Klosters | 2018/06/16 08:00 | Olivia S-Williams v Maria Michaela Fiacan | 6-7,6-3,6-4 |
| ITF Women Hammamet | 2018/05/10 09:00 | Olivia S-Williams v Noelia Zeballos | 1-6,1-6 |
| ITF Women Hammamet | 2018/05/09 11:50 | Olivia S-Williams v Katja Milas | 6-4,6-3 |
| ITF Women Gonesse Qual | 2018/03/11 15:05 | Laure Line Glaude v Olivia S-Williams | 6-7,6-1,6-3 |
| ITF Women Mallorca | 2018/02/25 08:30 | Olivia S-Williams v Maya Tahan | 1-6,3-6 |
| ITF Women Vinaros | 2017/11/04 09:00 | Olivia S-Williams v Esther L Alcaraz | 0-6,0-6 |
| ITF Women Sant Cugat Qual | 2017/10/28 10:00 | Jiayun Zhu v Olivia S-Williams | 6-1,6-3 |
| ITF Women Klosters | 2018/06/16 08:00 | Olivia S-Williams v Maria Michaela Fiacan | 6-7,6-3,6-4 |