Stadium: C Round: 26
| ITF Women Denain | 2017/07/04 14:55 | Olga Ianchuk v Tayisiya Morderger | 6-2,6-2 |
| ITF Women Stare Splavy | 2018/06/06 08:00 | Olga Ianchuk v Maria Marfutina | 6-4,6-4 |
| WTA Nurnberg Qual | 2018/05/20 10:10 | Mandy Minella v Olga Ianchuk | 6-2,6-1 |
| WTA Nurnberg Qual | 2018/05/19 14:00 | Jule Niemeier v Olga Ianchuk | 3-6,6-3,6-7 |
| ITF Women Charlottesville | 2018/04/26 13:30 | Olga Ianchuk v Camilla Rosatello | 2-6,4-6 |
| ITF Women Dothan | 2018/04/17 18:45 | Olga Ianchuk v Risa Ozaki | 6-7,6-0,6-7 |
| ITF Women Indian Harbour | 2018/04/11 14:30 | Olga Ianchuk v Victoria Duval | 4-6,2-6 |
| WTA Monterrey Qual | 2018/03/31 18:10 | Jovana Jaksic v Olga Ianchuk | 6-3,3-6,6-4 |
| WTA Acapulco Qual | 2018/02/25 01:45 | Arantxa Rus v Olga Ianchuk | 6-2,6-1 |
| ITF Women Stare Splavy | 2018/06/05 10:45 | Lucie Hradecka v Tayisiya Morderger | 2-6,1-6 |
| ITF Women Stare Splavy Qual | 2018/06/04 08:00 | Panna Udvardy v Tayisiya Morderger | 6-7,1-6 |
| ITF Women Stare Splavy Qual | 2018/06/03 12:00 | Ani Vangelova v Tayisiya Morderger | 1-6,2-6 |
| ITF Women Hammamet | 2018/05/26 09:00 | Nastassja Burnett v Tayisiya Morderger | 6-4,3-6,6-4 |
| ITF Women Hammamet | 2018/05/25 09:00 | Julyette M J Steur v Tayisiya Morderger | 3-6,6-7 |
| ITF Women Hammamet | 2018/05/24 09:00 | Celine Fritsch v Tayisiya Morderger | 3-6,2-6 |
| ITF Women Hammamet | 2018/05/23 10:25 | Claudia Coppola v Tayisiya Morderger | 2-6,2-6 |
| ITF Women Hammamet | 2018/05/17 09:00 | Yana Morderger v Tayisiya Morderger | 6-3,6-3 |