Stadium: Clay 3 Round: 26 Ground: Clay
| Challenger Szczecin MD | 2019/09/12 16:20 | Middelkoop/Podlipnik-Castillo v Zielinski/Zuk | 6-4,7-5 |
| Challenger Szczecin MD | 2019/09/11 17:20 | Zielinski/Zuk v Gakhov/Kopriva | 7-6,6-2 |
| ITF M25 Bydgoszcz MD | 2019/08/15 14:30 | Manafov/Pichler v Zielinski/Zuk | 6-3,3-6,10-8 |
| ITF M25 Bydgoszcz MD | 2019/08/14 14:00 | Stajszczak/Szmyrgala v Zielinski/Zuk | 2-6,2-6 |
| Challenger Sopot MD | 2019/07/30 15:35 | Brkic/Pavic v Zielinski/Zuk | 4-6,6-1,10-8 |
| Challenger Prague MD | 2019/07/23 12:55 | Draganja/Milojevic v Zielinski/Zuk | 3-6,6-3,10-7 |
| ITF M15 Wroclaw MD | 2019/07/06 14:25 | Galka/Galus v Zielinski/Zuk | 4-6,3-6 |
| ITF M15 Wroclaw MD | 2019/07/05 15:00 | Zielinski/Zuk v Nouza/Vrbensky | 7-6,6-3 |
| ITF M15 Novi Sad MD | 2019/08/08 13:00 | Liska/Puskar v Celebic/Rajski | 3-6,6-7 |