Round: 25
| ATP Marrakech Qual | 2014/04/20 10:00 | Katarzyna Piter v Anastasia Grymalska | 7-5,6-7,0-6 |
| ITF Women Rome | 2017/07/04 09:40 | Elena-Gabriela Ruse v Katarzyna Piter | 6-2,6-4 |
| ITF Women Warsaw | 2017/06/24 14:25 | Katarzyna Piter v Martina Trevisan | 4-6,2-6 |
| ITF Women Warsaw | 2017/06/24 07:30 | Ani Mijacika v Katarzyna Piter | 3-6,3-6 |
| ITF Women Warsaw | 2017/06/22 11:50 | Valeriya Urzhumova v Katarzyna Piter | 3-6,2-6 |
| ITF Women Warsaw | 2017/06/21 10:50 | Lou Brouleau v Katarzyna Piter | 1-6,0-6 |
| ITF Women Padova | 2017/06/15 09:00 | Martina Caregaro v Katarzyna Piter | 6-2,6-4 |
| ITF Women Padova | 2017/06/13 09:00 | Bibiane Schoofs v Katarzyna Piter | 4-6,6-7 |
| WTA Strasbourg Qual | 2017/05/20 10:45 | Julia Boserup v Katarzyna Piter | 6-2,6-1 |
| ITF Women Rome | 2017/07/06 12:05 | Anastasia Grymalska v Mariana Duque Marino | 3-6,0-6 |
| ITF Women Rome | 2017/07/04 16:35 | Anastasia Grymalska v Nina Nikprelevic | 6-0,6-0 |
| ITF Women Rome Qual | 2017/07/03 08:30 | Elena-Gabriela Ruse v Anastasia Grymalska | 4-6,6-2,2-6 |
| ITF Women Rome Qual | 2017/07/02 11:40 | Giorgia Marchetti v Anastasia Grymalska | 3-6,6-1,4-6 |
| ITF Women Rome Qual | 2017/07/01 14:10 | Pia Konig v Anastasia Grymalska | 6-2,4-6,0-6 |
| ITF Women Torun | 2017/06/29 15:00 | Maja Chwalinska v Anastasia Grymalska | 6-3,4-6,6-1 |
| ITF Women Torun | 2017/06/28 09:30 | Anastasia Grymalska v Julia Glushko | 6-4,6-7,6-2 |
| ITF Women Warsaw | 2017/06/22 09:00 | Vera Lapko v Anastasia Grymalska | 4-6,7-6,6-4 |