Kacper Żuk (born 21 January 1999) is a former 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.
Tennis career
2020–21: First Challenger title and top 200
Żuk made his ATP debut at the 2020 ATP Cup, where he represented Poland in a singles match, losing to Marin Čilić of team Croatia.[1]
He ended the 2020 season with back-to-back ITF World Tennis Tour titles at Hamburg and Vale do Lobo.[2]
He reached his first Challenger final in March 2021 and in April won his first Challenger title at the 2021 Split Open II in Croatia. As a result, he reached the top 200 on 19 April 2021 and a career-high of No. 162 on 13 September 2021.
2022–23: United Cup debut
He played his first match at the 2023 United Cup as the Polish No. 3 male player in the semifinals against Frances Tiafoe and lost in straight sets.
Grand Slam performance timeline
Key
W
F
SF
QF
#R
RR
Q#
P#
DNQ
A
Z#
PO
G
S
B
NMS
NTI
P
NH
(W) winner; (F) finalist; (SF) semifinalist; (QF) quarterfinalist; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage; (Q#) qualification round; (P#) preliminary round; (DNQ) did not qualify; (A) absent; (Z#) Davis/Fed Cup Zonal Group (with number indication) or (PO) play-off; (G) gold, (S) silver or (B) bronze Olympic/Paralympic medal; (NMS) not a Masters tournament; (NTI) not a Tier I tournament; (P) postponed; (NH) not held; (SR) strike rate (events won / competed); (W–L) win–loss record.
To avoid confusion and double counting, these charts are updated at the conclusion of a tournament or when the player's participation has ended.