Round: 1
| Eastern European Championship Women | 2020/06/29 14:00 | Piter, Katarzyna v Basak Eraydin | 6-1,6-0 |
| Polish National Tour Women | 2020/06/23 08:00 | Piter, Katarzyna v Martyna Kubka | 2-6,1-6 |
| Polish National Tour Women | 2020/06/22 10:00 | Piter, Katarzyna v Kubacha, Zuzanna | 6-0,6-1 |
| Polish National Tour Women | 2020/06/21 17:00 | Piter, Katarzyna v Saska, Wiktoria | 6-0,6-1 |
| Polish National Tour Women | 2020/06/19 08:00 | Katarzyna Kawa v Piter, Katarzyna | 6-3,7-5 |
| Polish National Tour Women | 2020/06/18 15:00 | Piter, Katarzyna v Wierzbowska, Aleksandra | 7-6,7-6 |
| Polish National Tour Women | 2020/06/17 14:30 | Piter, Katarzyna v Hedrzak, Magdalena | 7-5,6-1 |
| ITF W25 Altenkirchen | 2020/02/25 09:55 | Andreea Mitu v Piter, Katarzyna | 3-6,7-5,6-2 |
| Eastern European Championship Women | 2020/06/29 12:35 | Kovinic, Danka v Joksovic, Doroteja | 6-1,6-2 |
| ITF - W15 Monastir | 2020/02/05 10:00 | Joksovic, Doroteja v Ponomar, Lisa | 4-6,2-6 |
| ITF - W15 Monastir | 2020/02/02 12:00 | Teodosescu, Nicole v Joksovic, Doroteja | 0-6,3-6 |
| ITF - W15 Monastir | 2020/01/26 12:00 | Teodosescu, Nicole v Joksovic, Doroteja | 6-2,6-1 |
| ITF W15 Cairo | 2019/11/27 12:45 | Joksovic, Doroteja v Lantigua de La Nuez, Ana | 0-6,6-4,0-6 |
| Telavi, Singles W-ITF-GEO-04A | 2019/10/15 08:55 | Joksovic, Doroteja v Anna Siskova | 4-6,3-6 |
| Telavi, Singles W-ITF-GEO-04A | 2019/10/10 06:00 | Joksovic, Doroteja v Anna Siskova | 2-6,1-6 |
| Telavi, Singles W-ITF-GEO-04A | 2019/10/08 06:00 | Lazareva, Margarita v Joksovic, Doroteja | 7-6,4-6,4-6 |