Kamil Majchrzak is the highest-ranked Polish man in singles, a right-hander born 13 January 1996 in Piotrków Trybunalski who came up through a decorated junior pipeline. He ended his junior career as 2014 Youth Olympics gold medallist, also capturing the 2013 US Open boys' doubles title and earning wins over future top-10 names Berrettini, Fritz, Hurkacz, Medvedev and Rublev. That same doubles run included a final over a young Quentin Halys — a reminder of how long this generation has circled one another.
The game is built for attrition. Across his career he has won 71.1% of first-serve points and 52.1% on the second, saving 61% of break points and holding serve 79% of the time — numbers that lean on a clay-honed baseline and a serve that holds under pressure. His record skews heavily to clay (248-128) over hard (121-64) and grass (26-17), though his loudest results have come off the dirt.
The career has two acts split by a 13-month ban. He accepted a sanction under the Tennis Anti-Doping Programme after testing positive at events in late 2022, having reached a career-high of No. 75 that February. The ITIA accepted the findings stemmed from a contaminated supplement and that he had not knowingly or intentionally ingested the substances. The rebuild was total — back from outside the top 900, grinding Challenger titles before re-establishing himself on tour.
Act two has been his best tennis yet. He defeated former finalist Berrettini en route to the 2025 Wimbledon fourth round, then saved five match points to beat No. 10 Karen Khachanov reaching the 2025 US Open third round. That climb pushed him to a career-high No. 53, achieved on 30 March 2026. This season he reached the third round in Miami before the clay swing; at No. 76, he's again chasing the top 50 he briefly touched.