| WTA Rabat Qual | 2016/04/24 11:15 | Marina Erakovic v Katarzyna Piter | 6-4,6-0 |
| WTA Rabat Qual | 2016/04/23 12:00 | Katarzyna Piter v Lesley Pattinama Kerkhove | 3-6,7-6,7-5 |
| WTA Kuala Lumpur Qual | 2016/02/27 03:00 | Katarzyna Piter v Yuxuan Zhang | 3-6,6-1,6-1 |
| WTA Kuala Lumpur Qual | 2015/02/28 06:00 | Katarzyna Piter v Nigina Abduraimova | 6-7,6-7 |
| WTA Luxembourg Qual | 2014/10/12 16:15 | Katarzyna Piter v Sesil Karatantcheva | 2-6,2-6 |
| Wimbledon Women | 2014/06/24 10:30 | Andrea Petkovic v Katarzyna Piter | 6-1,6-4 |
| ATP Marrakech Qual | 2014/04/20 10:00 | Katarzyna Piter v Anastasia Grymalska | 7-5,6-7,0-6 |
| ATP Marrakech Qual | 2014/04/19 09:00 | Katarzyna Piter v Irina Ramialison | 6-3,6-0 |
| WTA Montreal Qual | 2016/07/23 14:00 | Danielle Lao v Vania King | 7-5,1-6,5-7 |