Round: 25 Ground: Hardcourt outdoor
| ITF W25 Macon | 2019/02/25 14:35 | Piter, Katarzyna v Xinyu Wang | 1-6,6-4,10-12 |
| ITF W25 Macon | 2019/02/25 08:30 | Piter, Katarzyna v Fayard, Juline | 6-1,6-1 |
| ITF W25 Altenkirchen | 2019/02/20 12:20 | Ivakhnenko, Valentyna v Piter, Katarzyna | 6-1,4-6,6-4 |
| ITF Women Pune | 2018/12/12 08:10 | Piter, Katarzyna v Chieh-Yu Hsu | 3-6,3-6 |
| ITF Women Pune | 2018/12/10 04:30 | Piter, Katarzyna v Ho, Jessica | 6-0,6-3 |
| ITF Women Solapur | 2018/12/06 06:50 | Lemoine, Quirine v Piter, Katarzyna | 7-5,6-3 |
| ITF Women Solapur | 2018/12/05 05:20 | Piter, Katarzyna v Chieh-Yu Hsu | 6-4,6-3 |
| ITF Women Solapur | 2018/12/04 07:10 | Piter, Katarzyna v Namigata, Junri | 6-2,6-7,6-4 |
| Rancho Santa Fe, Ca, Singles W-ITF-USA-05A | 2019/02/20 20:50 | Dia Evtimova v Jovic, J. | 6-3,2-6,2-6 |
| Surprise, Singles W-ITF-USA-04A | 2019/02/13 17:00 | Daniela Seguel v Dia Evtimova | 4-6,6-2,6-2 |
| ITF W25 Plantation | 2019/01/23 16:00 | Dia Evtimova v Ulrikke Eikeri | 5-7,5-7 |
| ITF W25 Daytona Beach | 2019/01/16 14:30 | Irina Fetecau v Dia Evtimova | 6-0,6-2 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/12/21 06:00 | Dia Evtimova v Londol, Teresia | 6-1,6-1 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/12/20 12:05 | Dia Evtimova v Aponasenko, Vasilisa | 6-0,6-2 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/12/12 08:10 | Evgeniya Burdina v Dia Evtimova | 6-3,6-4 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/12/09 06:30 | Gaspar-Ivan, Ioana v Dia Evtimova | 6-1,3-6,10-5 |