Stadium: Court 3 Round: 25
| Obidos, Singles W-WITF-POR-12A | 2018/06/13 09:30 | Dejana Radanovic v Anna Klasen | 6-2,6-2 |
| ITF Women Obidos Qual | 2018/06/04 09:30 | Jain, Mahak v Anna Klasen | 4-6,6-4,6-2 |
| ITF Women Obidos Qual | 2018/06/03 10:30 | Oliveira, Leonor v Anna Klasen | 1-6,0-6 |
| Obidos, Singles W-WITF-POR-12A | 2018/05/31 13:50 | Anna Klasen v Lina Gjorcheska | 7-5,0-6,4-6 |
| Obidos, Singles W-WITF-POR-12A | 2018/05/29 10:55 | Anna Klasen v Pelayo, Luisa | 6-3,6-1 |
| ITF Women Obidos Qual | 2018/05/28 10:45 | Jain, Mahak v Anna Klasen | 3-6,2-6 |
| ITF Women Obidos Qual | 2018/05/27 09:30 | Morales, Maria Fernanda v Anna Klasen | 0-6,0-6 |
| ITF Women Tucepi | 2018/04/24 09:00 | Kitagawa, Rio v Anna Klasen | 7-6,5-7,6-4 |
| s-Hertogenbosch, Netherlands, Qualifying | 2018/06/10 13:50 | Veronika Kudermetova v Pirazhenka, Sviatlana | 6-2,6-3 |
| s-Hertogenbosch, Netherlands, Qualifying | 2018/06/09 12:45 | Pirazhenka, Sviatlana v Perez, Ellen | 7-6,6-4 |
| ITF Women Caserta Qual | 2018/05/20 11:40 | Pirazhenka, Sviatlana v Gatica, Barbara | 3-6,4-6 |
| ITF Women Caserta Qual | 2018/05/19 13:55 | Pirazhenka, Sviatlana v Bunea, Nicole | 6-2,6-3 |
| ITF Women San Severo | 2018/05/16 17:00 | Jule Niemeier v Pirazhenka, Sviatlana | 6-2,6-1 |
| ITF Women San Severo | 2018/05/15 08:00 | Gaia Squarcialupi v Pirazhenka, Sviatlana | 3-6,3-6 |
| Tbilisi, Singles W-WITF-GEO-01A | 2018/05/01 06:00 | Pirazhenka, Sviatlana v Kolar, Nastja | 3-6,4-6 |
| Karshi, Singles W-WITF-UZB-01A | 2018/04/23 10:15 | Pirazhenka, Sviatlana v Margarita Betova | 4-6,2-6 |