Stadium: Court 3 Round: 25 Ground: Synthetic outdoor
| 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 |
| ITF Women Tucepi | 2018/04/23 08:00 | Milas, Katja v Anna Klasen | 4-6,4-6 |
| ITF Women Tucepi | 2018/04/21 07:00 | Anna Klasen v Sunjic, Neli | 6-1,3-6,6-3 |
| Sharm El Sheikh, Singles W-WITF-EGY-09A | 2018/04/08 08:00 | Berankova, Karolina v Anna Klasen | 6-7,6-3,7-5 |
| Sharm El Sheikh, Singles W-WITF-EGY-09A | 2018/04/07 08:00 | Anna Klasen v Wira, Klaudia | 7-5,6-2 |
| Sharm El Sheikh, Singles W-WITF-EGY-09A | 2018/04/02 08:00 | Chen, Pei Hsuan v Anna Klasen | 6-3,1-6,6-2 |
| ITF Women Obidos Qual | 2018/05/28 12:40 | Roth, Michelle v Pelayo, Luisa | 3-6,4-6 |
| ITF Women Obidos Qual | 2018/05/26 09:30 | Pelayo, Luisa v Kelly Williford | 4-6,6-4,6-4 |
| ITF Women Oeiras | 2018/05/20 09:30 | Pelayo, Luisa v de Lucas Perez, Yesica | 4-6,3-6 |
| ITF Women Oeiras | 2018/05/19 12:00 | Morales, Maria Fernanda v Pelayo, Luisa | 2-6,3-6 |
| ITF Women Porto | 2017/08/01 13:25 | Pelayo, Luisa v Sanesi, Gaia | 0-6,1-6 |
| ITF Women Amarante | 2017/07/02 13:30 | Leonard, Sarah v Pelayo, Luisa | 6-2,6-0 |
| Obidos, Singles W-WITF-POR-12A | 2017/03/26 12:00 | Pelayo, Luisa v Moreno Arias, Lidia | 2-6,2-6 |