| ITF W25 Kaposvar | 09/22 11:00 | 44 | Petrova, Anastasia v Sonnekus-Williams, Olivia | 6-1,6-2 | |
| ITF W60 Монтрё | 09/02 07:00 | 45 | Сара Чакаревич v Sonnekus-Williams, Olivia | 6-3,6-0 | |
| ITF W25 Вербье | 08/26 09:00 | 54 | Алиса Тубелло v Sonnekus-Williams, Olivia | 6-0,6-1 | |
| ITF W15 Пальманова | 02/04 08:30 | 45 | Delgado, Luniuska v Sonnekus-Williams, Olivia | 6-2,6-1 | |
| ITF Women Monastir | 10/29 08:30 | 54 | Sonnekus-Williams, Olivia v Jansen Figueras, Helena | 0-6,4-6 | |
| ITF Women Monastir | 10/28 11:00 | 54 | Pastorino, Vittoria v Sonnekus-Williams, Olivia | Retired | |
| ITF Women Monastir | 10/21 10:30 | 54 | Сатхивака Сама v Sonnekus-Williams, Olivia | 6-0,6-3 | |
| ITF Women Badenweiler | 09/03 09:00 | 44 | Эвита Рамирес v Sonnekus-Williams, Olivia | 6-0,6-2 | |
| ITF Women Woking Qual | 07/30 10:00 | 54 | Sonnekus-Williams, Olivia v Эмили Арбутхнотт | 1-6,1-6 | |
| ITF Women Les Contamines | 07/22 08:00 | 54 | Lommer, Chiara v Sonnekus-Williams, Olivia | 6-2,6-2 | |
| ITF Women Dijon | 07/14 12:45 | 54 | Sonnekus-Williams, Olivia v Манева Ракотомалала | 3-6,0-6 | |
| ITF Women Verbier Qual | 06/24 09:00 | 54 | Джесси Ани v Sonnekus-Williams, Olivia | 6-3,6-3 | |
| ITF Women Verbier Qual | 06/23 08:00 | 54 | Sonnekus-Williams, Olivia v Maria Michaela Fiacan | 6-4,6-2 | |
| ITF Women Klosters | 06/17 08:00 | 54 | Таисия Мордергер v Sonnekus-Williams, Olivia | 6-0,6-0 | |
| ITF Women Klosters | 06/16 08:00 | 54 | Sonnekus-Williams, Olivia v Maria Michaela Fiacan | 6-7,6-3,6-4 | |
| Хаммамет, Одиночки W-WITF-TUN-15A | 05/10 09:00 | 26 | Sonnekus-Williams, Olivia v Ноелия Себальос | 1-6,1-6 | |
| Хаммамет, Одиночки W-WITF-TUN-15A | 05/09 11:50 | 25 | Sonnekus-Williams, Olivia v Milas, Katja | 6-4,6-3 | |
| Gonesse, Singles Qualifying W-WITF-FRA-06A | 03/11 15:05 | 44 | Лауре Лине Глауде v Sonnekus-Williams, Olivia | 6-7,6-1,6-3 | |
| ITF Women Mallorca | 02/25 08:30 | 62 | Sonnekus-Williams, Olivia v Майа Тахан | 1-6,3-6 | |
| ITF Women Vinaros | 11/04 09:00 | 62 | Sonnekus-Williams, Olivia v Эстер L Alcaraz | 0-6,0-6 | |
| ITF Women Sant Cugat Qual | 10/28 10:00 | 62 | Цзяюнь Чжу v Sonnekus-Williams, Olivia | 6-1,6-3 | |
| ITF Women Riba-Roja De Turia | 10/14 09:00 | 62 | Sonnekus-Williams, Olivia v Алмудена С-Л Фернандес | 1-6,2-6 | |
| Хаммамет, Одиночки W-WITF-TUN-15A | 09/20 11:25 | 25 | Данилиду, Елена v Sonnekus-Williams, Olivia | 6-0,6-2 | |
| ITF Women Don Benito | 07/16 14:30 | 54 | Sonnekus-Williams, Olivia v Мария Оливер Санчез | 2-6,3-6 | |
| ITF Women Madrid | 06/03 08:00 | 62 | Sonnekus-Williams, Olivia v Benito , Ines | 4-6,7-6,6-7 | |
| ITF Women La Bisbal Qual | 05/14 09:00 | 44 | Анастасия Гасанова v Sonnekus-Williams, Olivia | 6-2,6-0 |