Head to Head
| Polen - National Tour | 2020/07/08 13:00 | Jan Zielinski v Kacper Zuk | 6-4,6-3 |
| Polen - National Tour | 2020/06/23 08:00 | Kacper Zuk v Jan Zielinski | 6-2,3-6,6-2 |
| 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 - Stettin | 2019/09/09 12:15 | Kacper Zuk v Jan Zielinski | 6-7,7-6,6-2 |
Home History
| Challenger - Braunschweig | 2022/07/06 10:40 | Marco Cecchinato v Kacper Zuk | 6-1,4-6,6-2 |
| Challenger - Braunschweig | 2022/07/05 13:10 | Gastao Elias v Kacper Zuk | 6-7,3-6 |
| Challenger - Braunschweig | 2022/07/04 10:50 | Kacper Zuk v Alexey Vatutin | 7-6,6-1 |
| Challenger - Braunschweig | 2022/07/03 12:25 | Kacper Zuk v Philip Florig | 7-5,7-5 |
| Challenger - Troyes | 2022/06/28 08:30 | Kacper Zuk v Thiago Agustin Tirante | 5-7,1-6 |
| Wimbledon | 2022/06/20 11:40 | Marc-Andrea Huesler v Kacper Zuk | 6-3,7-6 |
| Challenger - Troisdorf | 2022/05/24 13:10 | Kacper Zuk v Thomas Fabbiano | 3-6,2-6 |
| French Open | 2022/05/17 10:50 | Cedrik-Marcel Stebe v Kacper Zuk | 3-6,6-1,6-4 |
Away History
| Davis Cup | 2022/03/05 13:20 | Gastao Elias v Jan Zielinski | 6-1,6-3 |
| ATP Cup | 2022/01/07 06:30 | Pablo Carreno Busta v Jan Zielinski | 6-2,6-1 |
| Challenger - Mouilleron le Captif | 2021/10/04 10:30 | Zizou Bergs v Jan Zielinski | 6-1,6-3 |
| Challenger - Mouilleron le Captif | 2021/10/03 10:00 | Jan Zielinski v Aidan Mchugh | 6-3,6-4 |
| Challenger - Mallorca | 2021/09/02 15:40 | Yasutaka Uchiyama v Jan Zielinski | 6-1,6-2 |
| Challenger - Mallorca | 2021/09/01 15:05 | Alejandro Gonzalez v Jan Zielinski | 7-6,6-7,4-6 |
| Challenger - Mallorca | 2021/08/31 08:00 | Jan Zielinski v Alejandro Gonzalez | 1-6,2-6 |
| Challenger - Mallorca | 2021/08/30 08:00 | Mukund Sasikumar v Jan Zielinski | 5-7,2-6 |