Stadium: Court 2 Round: 25 Ground: Clay
| 2018 Fed Cup | 2018/04/19 08:00 | Piia Suomalainen v Rita Atik | 2-6,4-6 |
| 2018 Fed Cup | 2018/04/18 08:00 | Piia Suomalainen v Katie Poluta | 6-7,6-0,6-3 |
| Billie Jean King Cup | 2018/04/17 08:00 | Piia Suomalainen v Divna Ratkovic | 6-1,6-1 |
| 2018 Fed Cup | 2018/04/16 08:00 | Piia Suomalainen v Judith Muraa | 6-2,6-1 |
| ITF Women Heraklion | 2018/03/28 09:20 | Lisa Sabino v Piia Suomalainen | 6-3,6-1 |
| ITF Women Heraklion | 2018/03/26 07:00 | Piia Suomalainen v Sara Lanca | 6-0,6-3 |
| ITF Women Heraklion | 2018/03/20 11:20 | Piia Suomalainen v Francesca Jones | 3-6,4-6 |
| ITF Women Heraklion | 2018/03/19 08:00 | Piia Suomalainen v Sophia Intert | 6-0,6-2 |
| ITF Women Antalya | 2018/04/19 07:30 | Julia Stamatova v Verena Meliss | 3-6,4-6 |
| ITF Women Antalya | 2018/04/17 09:15 | Julia Stamatova v Haruna Arakawa | 6-4,6-2 |
| ITF Women Istanbul Qual | 2018/04/07 09:20 | Julia Stamatova v Andreea Amalia Rosca | 4-6,6-3,3-6 |
| ITF Women Heraklion | 2018/03/24 08:00 | Anna Bondar v Julia Stamatova | 7-5,6-2 |
| ITF Women Heraklion | 2018/03/23 08:00 | Julia Stamatova v Lisa Ponomar | 6-3,6-2 |
| ITF Women Heraklion | 2018/03/21 08:00 | Julia Stamatova v Emilie Francati | 6-4,7-6 |
| ITF Women Hammamet | 2018/03/16 11:45 | Julia Stamatova v Isabella Shinikova | 7-6,4-6,6-7 |
| ITF Women Hammamet | 2018/03/15 10:55 | Julia Stamatova v Guillermina Naya | 6-3,7-5 |