Stadium: Court 2 Round: 26
| ITF Women Karlskrona | 2018/05/08 08:00 | Vehvilainen, Liisa v Alice Gillan | 6-4,1-6,6-2 |
| ITF Women Karlskrona Qual | 2018/05/07 08:00 | Vehvilainen, Liisa v Zaar, Lisa | 6-2,6-2 |
| ITF Women Tucepi | 2018/04/21 07:00 | Orav, Saara v Vehvilainen, Liisa | 4-6,6-1,6-3 |
| ITF Women Helsinki Qual | 2017/11/12 13:00 | Minetti, Mariella v Vehvilainen, Liisa | 6-1,6-0 |
| ITF Women Helsinki Qual | 2017/11/11 11:00 | Vehvilainen, Liisa v Petrova, Arina | 7-5,6-0 |
| ITF Women Tampere | 2017/07/25 07:00 | Kilnarova, Monika v Vehvilainen, Liisa | 6-1,6-0 |
| ITF Women Tampere Qual | 2017/07/24 11:00 | Hakala, Karolina v Vehvilainen, Liisa | 1-6,2-6 |
| ITF Women Tampere Qual | 2017/07/23 07:00 | Vehvilainen, Liisa v Heiskanen, Lotta | 6-1,6-3 |
| ITF Women Karlskrona | 2018/05/09 11:00 | Yudanov, Marina v Barritza, Karen | 6-2,6-7,3-6 |
| ITF Women Wiesbaden | 2018/04/25 15:10 | Barritza, Karen v Dejana Radanovic | 3-6,3-6 |
| ITF Women Wiesbaden Qual | 2018/04/24 09:50 | Barritza, Karen v Sumova, Diana | 6-3,6-3 |
| Fed Cup, Groupe Mondial | 2018/04/21 09:35 | Barritza, Karen v Glushko, Julia | 6-1,5-7,1-6 |
| Fed Cup, Groupe Mondial | 2018/04/20 10:50 | Barritza, Karen v Maria Sakkari | 0-6,3-6 |
| Fed Cup, Groupe Mondial | 2018/04/18 09:25 | Barritza, Karen v Sandra Samir | 7-5,4-6,6-2 |
| ITF Women Istanbul Qual | 2018/04/07 13:30 | Anastasia Gasanova v Barritza, Karen | 6-4,6-1 |
| Altenkirchen, Qualifications Simples W-WITF-GER-02A | 2018/02/18 09:00 | Harriet Dart v Barritza, Karen | 6-4,6-1 |