Head to Head
| ITF M25 Barnstaple | 2020/02/13 11:20 | Kacper Zuk v Jan Zielinski | 3-6,6-0,6-1 |
| ITF M15 Sharm El Sheikh | 2019/10/30 11:25 | Jan Zielinski v Kacper Zuk | 3-6,3-6 |
| ITF M25 Stockholm | 2019/09/27 10:00 | Kacper Zuk v Jan Zielinski | 6-3,6-1 |
| Challenger Szczecin | 2019/09/09 12:15 | Kacper Zuk v Jan Zielinski | 6-7,7-6,6-2 |
Home History
| Polish National Tour | 2020/06/22 07:00 | Kacper Zuk v Maciej Rajski | 6-4,6-4 |
| Polish National Tour | 2020/06/21 14:00 | Kacper Zuk v Yann Wojcik | 6-2,7-5 |
| Polish National Tour | 2020/06/20 08:00 | Kacper Zuk v Daniel Michalski | 2-6,6-3,6-3 |
| Polish National Tour | 2020/06/19 09:30 | Kacper Zuk v Michal Dembek | 6-2,1-6,7-6 |
| Polish National Tour | 2020/06/18 07:00 | Kacper Zuk v Filip Kolasinski | 4-6,6-0,6-3 |
| Polish National Tour | 2020/06/17 15:30 | Kacper Zuk v Yann Wojcik | 6-3,6-1 |
| Davis Cup | 2020/03/06 16:00 | Kacper Zuk v Ching Lam | 6-2,6-1 |
| Challenger Calgary | 2020/02/29 21:25 | Kacper Zuk v Arthur Rinderknech | 3-6,6-7 |
Away History
| Polish National Tour | 2020/06/22 08:35 | Jan Zielinski v Filip Kolasinski | 6-4,6-3 |
| Marbello Cup Exhibition Series | 2020/06/05 08:20 | Filip Kolasinski v Jan Zielinski | 0-6,7-5,7-10 |
| Marbello Cup Exhibition Series | 2020/06/04 14:10 | Maciej Rajski v Jan Zielinski | 7-5,6-1 |
| Marbello Cup Exhibition Series | 2020/06/04 08:20 | Filip Kolasinski v Jan Zielinski | 6-7,4-6 |
| Marbello Cup Exhibition Series | 2020/06/03 14:40 | Maciej Rajski v Jan Zielinski | 4-6,4-6 |
| Marbello Cup Exhibition Series | 2020/06/03 08:50 | Jan Zielinski v Michal Dembek | 7-6,5-7,10-4 |
| Marbello Cup Exhibition Series | 2020/06/02 13:30 | Daniel Michalski v Jan Zielinski | 6-0,5-7,8-10 |
| Marbello Cup Exhibition Series | 2020/06/02 07:00 | Jan Zielinski v Mateusz Terczynski | 4-6,6-3,10-6 |