Stadium: Court 4 Round: 44
| ITF Women Badenweiler | 2018/09/02 09:00 | Vasic, Ema v Эвита Рамирес | 6-7,3-6 |
| ITF Women Woking Qual | 2018/07/30 10:00 | Sonnekus-Williams, Olivia v Эмили Арбутхнотт | 1-6,1-6 |
| ITF Women Les Contamines | 2018/07/22 08:00 | Lommer, Chiara v Sonnekus-Williams, Olivia | 6-2,6-2 |
| ITF Women Dijon | 2018/07/14 12:45 | Sonnekus-Williams, Olivia v Манева Ракотомалала | 3-6,0-6 |
| ITF Women Verbier Qual | 2018/06/24 09:00 | Джесси Ани v Sonnekus-Williams, Olivia | 6-3,6-3 |
| ITF Women Verbier Qual | 2018/06/23 08:00 | Sonnekus-Williams, Olivia v Maria Michaela Fiacan | 6-4,6-2 |
| ITF Women Klosters | 2018/06/17 08:00 | Таисия Мордергер v Sonnekus-Williams, Olivia | 6-0,6-0 |
| ITF Women Klosters | 2018/06/16 08:00 | Sonnekus-Williams, Olivia v Maria Michaela Fiacan | 6-7,6-3,6-4 |
| Хаммамет, Одиночки W-WITF-TUN-15A | 2018/05/10 09:00 | Sonnekus-Williams, Olivia v Ноелия Себальос | 1-6,1-6 |