| Challenger Skopje | 05/22 15:10 | 25 | [270] Kacper Zuk v Max Houkes [287] | 1-6,1-6 | |
| Challenger Oeiras | 05/15 11:35 | 19 | [274] Kacper Zuk v Nino Serdarusic [305] | 6-7,5-7 | |
| Challenger Oeiras | 05/14 12:50 | 14 | [274] Kacper Zuk v Pierre-Hugues Herbert [397] | 6-2,6-4 | |
| Challenger Prague | 05/09 09:20 | 25 | Michael Geerts v Kacper Zuk | Cancelled | |
| ITF M25 Sabadell | 05/04 15:10 | 26 | Kacper Zuk v Martin Landaluce | 3-6,3-6 | |
| ITF M25 Sabadell | 05/02 12:35 | 25 | [273] Kacper Zuk v Carlos Sanchez Jover [434] | 6-2,6-4 | |
| Challenger Roseto | 04/19 09:00 | 25 | [263] Kacper Zuk v Dalibor Svrcina [203] | 5-7,0-6 | |
| Challenger Split | 04/12 08:30 | 26 | [268] Kacper Zuk v Norbert Gombos [142] | 3-6,6-3,6-7 | |
| Challenger Split | 04/11 10:50 | 25 | [268] Kacper Zuk v Mariano Navone [228] | 6-4,7-6 | |
| Challenger Split | 04/10 10:40 | 19 | [265] Kacper Zuk v Nino Serdarusic [294] | 2-6,6-4,6-3 | |
| Challenger Split | 04/09 11:40 | 14 | [265] Kacper Zuk v Max Hans Rehberg [411] | 6-4,6-3 | |
| Challenger Lille | 03/30 12:05 | 26 | [309] Vitaliy Sachko v Kacper Zuk [257] | 6-4,4-6,7-5 | |
| Challenger Lille | 03/28 17:35 | 25 | [216] Evan Furness v Kacper Zuk [257] | Retired | |
| Challenger St Brieuc | 03/23 21:55 | 26 | [257] Kacper Zuk v Ricardas Berankis [235] | 6-7,6-2,3-6 | |
| Challenger St Brieuc | 03/22 11:20 | 25 | [257] Kacper Zuk v Mathias Bourgue [391] | 6-7,6-3,7-6 | |
| ITF M25 Trimbach | 03/19 10:00 | 29 | [318] Beibit Zhukayev v Kacper Zuk [258] | 4-6,4-6 | |
| ITF M25 Trimbach | 03/18 09:55 | 28 | [267] Daniel Masur v Kacper Zuk [258] | 6-3,3-6,5-7 | |
| ITF M25 Trimbach | 03/17 10:40 | 27 | [166] Neil Oberleitner v Kacper Zuk [258] | 6-7,2-6 | |
| ITF M25 Trimbach | 03/16 11:55 | 26 | Lewie Lane v Kacper Zuk | 7-6,3-6,2-6 | |
| ITF M25 Trimbach | 03/14 14:15 | 25 | Daniil Glinka v Kacper Zuk | 5-7,6-3,3-6 | |
| ITF M25 Quinta Do Lago | 03/09 15:35 | 25 | Kacper Zuk v Pedro Araujo | 6-2,4-6,11-13 | |
| Challenger Rovereto | 02/21 15:25 | 25 | [395] Marius Copil v Kacper Zuk [260] | 6-7,7-5,6-4 | |
| Challenger Cherbourg | 02/16 12:40 | 26 | [266] Kacper Zuk v Luca Van Assche [152] | 1-6,2-6 | |
| Challenger Cherbourg | 02/14 11:55 | 25 | [266] Kacper Zuk v Gauthier Onclin [263] | 5-7,6-3,6-4 | |
| Challenger Vilnius | 02/08 10:10 | 25 | [264] Kacper Zuk v Laurent Lokoli [174] | 6-0,2-6,5-7 | |
| Davis Cup | 02/05 04:50 | - | Yoshihito Nishioka v Kacper Zuk | Cancelled | |
| Davis Cup | 02/04 04:40 | - | [108] Taro Daniel v Kacper Zuk [255] | 6-3,6-4 | |
| Challenger Nonthaburi | 01/18 03:30 | 26 | [248] Kacper Zuk v Michael Geerts [252] | 3-6,4-6 | |
| Challenger Nonthaburi | 01/16 07:25 | 25 | [217] Evan Furness v Kacper Zuk [248] | 1-6,1-6 | |
| Challenger Nonthaburi | 01/10 03:55 | 25 | [307] Yasutaka Uchiyama v Kacper Zuk [243] | 6-2,6-1 |
Wikipedia - Kacper Żuk
Kacper Żuk (born 21 January 1999) is a Polish professional tennis player.
Żuk has a career high ATP singles ranking of World No. 162 achieved on 13 September 2021. He also has a career-high ATP doubles ranking of World No. 278, achieved on 9 May 2022.
Żuk has reached ten career singles finals with a record of 11 wins and 3 losses, which includes a 1–2 record in ATP Challenger Tour finals. Additionally, he has reached 21 career doubles finals, with a record of 12 wins and 9 losses all but one occurring at the ITF Futures level.