| Eastern European Championship Women | 2020/07/03 12:00 | Danka Kovinic v Katarzyna Piter | 6-2,6-4 |
| Eastern European Championship Women | 2020/07/02 11:55 | Katarzyna Piter v Bojana Marinkovic | 6-0,6-1 |
| Eastern European Championship Women | 2020/06/30 09:20 | Katarzyna Piter v Doroteja Joksovic | 6-2,6-3 |
| Eastern European Championship Women | 2020/06/29 14:00 | Katarzyna Piter v Basak Eraydin | 6-1,6-0 |
| Polish National Tour Women | 2020/06/23 08:00 | Katarzyna Piter v Martyna Kubka | 2-6,1-6 |
| Polish National Tour Women | 2020/06/22 10:00 | Katarzyna Piter v Zuzanna Kubacha | 6-0,6-1 |
| Polish National Tour Women | 2020/06/21 17:00 | Katarzyna Piter v Wiktoria Saska | 6-0,6-1 |
| Polish National Tour Women | 2020/06/19 08:00 | Katarzyna Kawa v Katarzyna Piter | 6-3,7-5 |
| Eastern European Championship Women | 2020/07/02 08:00 | Nefisa Berberovic v Barbara Bonic | 6-4,6-2 |
| Eastern European Championship Women | 2020/06/30 08:00 | Natalija Stevanovic v Barbara Bonic | 1-6,7-5,6-3 |
| Eastern European Championship Women | 2020/06/29 08:00 | Isabella Shinikova v Barbara Bonic | 6-2,6-0 |
| ITF W25 Vitoria-Gasteiz | 2019/07/25 10:55 | Ioana Loredana Rosca v Barbara Bonic | 6-3,6-4 |
| ITF W25 Vitoria-Gasteiz | 2019/07/24 12:35 | Aleksandra Pitak v Barbara Bonic | 4-6,4-6 |
| ITF W25 Vitoria-Gasteiz | 2019/07/24 10:00 | Aleksandra Pitak v Barbara Bonic | 4-6,4-6 |
| ITF W15 Prokuplje | 2019/07/10 14:00 | Jelena Kovac v Barbara Bonic | 3-6,6-2,6-0 |
| ITF W15 Prokuplje | 2019/07/04 07:00 | Ipek Oz v Barbara Bonic | 4-6,6-3,6-4 |