| ITF Women Stuttgart | 2018/01/24 11:15 | Stephanie Wagner v Karen Barritza | 6-2,6-0 |
| ITF Women Helsinki | 2017/11/16 13:00 | Anastasia Kulikova v Karen Barritza | 2-6,7-6,7-5 |
| ITF Women Helsinki | 2017/11/15 12:00 | Deniza Marcinkevica v Karen Barritza | 1-6,1-6 |
| ITF Women Helsinki | 2017/11/14 13:25 | Elena Malygina v Karen Barritza | 1-6,2-6 |
| ITF Women Shrewsbury | 2017/11/07 12:20 | Karen Barritza v Katie Swan | 5-7,2-6 |
| ITF Women Shrewsbury Qual | 2017/11/06 10:30 | Karen Barritza v Summer Yardley | 6-3,6-4 |
| ITF Women Shrewsbury Qual | 2017/11/05 10:30 | Karen Barritza v Anna Popescu | 6-1,6-0 |
| ITF Women Nantes Qual | 2017/10/29 14:00 | Alina Silich v Karen Barritza | 2-6,6-4,6-4 |
| ITF Women Glasgow Qual | 2018/01/29 15:00 | Katarzyna Piter v Danielle Daley | 6-1,3-6,6-3 |