Stadium: Court 1 Round: 54
| ITF Women Saint Gaudens Qual | 2018/05/12 10:45 | Heranne Excellent v Lea Tholey | 0-6,0-6 |
| ITF Women Santa Margherita | 2018/04/17 14:10 | Catalina Pella v Lea Tholey | 6-1,6-4 |
| ITF Women Santa Margherita Qual | 2018/04/15 12:00 | Helena Verbeeck v Lea Tholey | 2-6,1-6 |
| ITF Women Santa Margherita Qual | 2018/04/09 11:00 | Chiara Scholl v Lea Tholey | 6-4,6-1 |
| ITF Women Santa Margherita Qual | 2018/04/08 12:00 | Juliette Colard v Lea Tholey | 2-6,3-6 |
| ITF Women Croissy-Beaubourg Qual | 2018/03/25 12:35 | Lea Tholey v Harmony Tan | 1-6,4-6 |
| ITF Women Croissy-Beaubourg Qual | 2018/03/24 14:30 | Sihem Bellahouel v Lea Tholey | 1-6,4-6 |
| ITF Women Gonesse | 2018/03/14 17:25 | Marina Yudanov v Lea Tholey | 6-1,6-0 |
| ITF Women Saint Gaudens Qual | 2018/05/12 11:45 | Mir Ambaye v Yana Sizikova | 0-6,0-6 |
| ITF Women Monzon | 2018/05/08 12:45 | Pranjala Yadlapalli v Yana Sizikova | 6-1,4-6,7-6 |
| WTA Bogota Qual | 2018/04/08 17:30 | Lizette Cabrera v Yana Sizikova | 6-4,6-4 |
| WTA Bogota Qual | 2018/04/07 19:00 | Yana Sizikova v Julia Grabher | 7-6,7-6 |
| WTA Monterrey Qual | 2018/04/01 18:00 | Yana Sizikova v Conny Perrin | 5-7,0-6 |
| WTA Monterrey Qual | 2018/03/31 16:00 | Ashley Kratzer v Yana Sizikova | 6-3,1-6,3-6 |
| ITF Women Gwalior | 2018/03/15 04:00 | Yana Sizikova v Karman Kaur Thandi | 7-5,6-3 |
| ITF Women Gwalior | 2018/03/14 03:30 | Valentyna Ivakhnenko v Yana Sizikova | 6-7,3-6 |