Kamil Majchrzak

Kamil Adrian Majchrzak (born 13 January 1996 ) is a Polish professional tennis player. He has a career-high ATP singles ranking of world No. 45 achieved on 29 June 2026 and a doubles ranking of No. 241 achieved on 8 August 2016. He is the current No. 1 Polish singles player.

Majchrzak has won one ATP Tour singles title at the 2026 Libéma Open.

In March 2019 Majchrzak celebrated his maiden Challenger triumph at the 2019 Open Harmonie mutuelle in St. Brieuc, France. Two months later he advanced to the 2019 Prosperita Open final with wins over Riccardio Bonadio, Zsombor Piros, No. 5 seeded Dennis Novak, and top seed Lloyd Harris. He defeated future world No. 1 Jannik Sinner to lift his second ATP Challenger trophy.

Majchrzak made the semifinals of the 2019 Ilkley Trophy Challenger and then qualified for Wimbledon without dropping a set. In the first round at Wimbledon he lost to Fernando Verdasco. At the 2019 Hall of Fame Open in Rhode Island he defeated Alastair Gray before losing a three set match to No. 1 seed John Isner in the second round. As a result, he reached the top 100 on 29 July 2019. Subsequently, Majchrzak had to withdraw from the 2020 Australian Open and Maharashtra Open due to a groin injury. He would not compete again for more than seven months. In August he returned to tennis and participated at the US Open where he lost to Ernesto Escobedo in the first round.

In September, he transitioned to clay courts and won his third Challenger title at the Czech Open. In the final, he defeated top seed and defending champion Pablo Andújar. Majchrzak entered at the 2020 French Open with a protected ranking making his debut at this major. In the first round he lost to 15th seeded Karen Khachanov.

2021: Masters & Olympics debut, First ATP quarterfinal Majchrzak started his season at the 2021 Great Ocean Road Open in Melbourne, Australia, which was organized as a lead-up tournament to the 2021 Australian Open. He entered under a protected ranking and in the first round defeated Laslo Đere in straight sets.

The first five months of the year proved unsuccessful for Majchrzak, winning just three of his first ten matches across the ATP Tour and ATP Challenger Tour. He began to turn it around at the 2021 Italian Open where he qualified by defeating two top 100 players in Alexei Popyrin and Yoshihito Nishioka. He lost to Denis Shapovalov in the first round of the main draw. The following week he qualified at the 2021 ATP Lyon Open and won his first round match. He used his protected ranking as well to enter the main draw of the 2021 French Open and also reached the second round with a win over Arthur Cazaux. He had a successful grass court swing, reaching a semifinal and a final at back-to-back challengers in Nottingham, United Kingdom. However, he lost in qualifying at Wimbledon.

Majchrzak qualified to represent Poland at the 2020 Summer Olympics where he was defeated by Miomir Kecmanović in the first round.

He reached his second ATP Challenger final of the year at his home tournament, the 2021 Pekao Szczecin Open where he lost to Zdeněk Kolář.

Majchrzak qualified at the 2021 Sofia Open as a lucky loser after the withdrawal of fourth seed Alexander Bublik. He reached the quarterfinals of an ATP tournament for the first time in his career by defeating wildcard Dimitar Kuzmanov.

2022–2023: ATP Cup semifinalist, top 75, doping suspension At the 2022 ATP Cup, Majchrzak won all his three matches and helped Poland reach the semifinals for the first time, He nevertheless entered the main draw after replacing Jenson Brooksby who withdrew due to COVID-19. He reached the second round for the first time at this major with a win over Andreas Seppi. Majchrzak lost to Alex de Minaur in the second round.

At the 2022 Tata Open Maharashtra he reached the semifinals of an ATP tournament for the first time in his career defeating second seed Lorenzo Musetti. As a result, he reached the top 75 in the rankings on 28 February 2022. He reached the quarterfinals only for the third time in his career defeating qualifier Marco Cecchinato. Majchrzak competed for Poland in their Davis Cup tie against Indonesia. He won two rubbers, losing just one game between them, to help Poland claim victory, 5–0.

In September at the 2022 Sofia Open he reached his third tour-level quarterfinal of the season, for a second year in a row, defeating Ričardas Berankis and eight seed Oscar Otte. He lost to eventual champion Marc-Andrea Huesler. At the 2022 Busan Open in South Korea, he won his fourth Challenger title defeating Radu Albot and as a result he moved 20 positions up back into the top 100 at No. 82 on 24 October 2022. In June 2023, the agency suspended Majchrzak for 13 months, while acknowledging that Majchrzak had not "knowingly or intentionally" committed an offense. Majchrzak's suspension ended on 29 December 2023.

2024: Comeback, first Challenger titles since 2022, top 125 Majchrzak returned to professional tennis on 31 December 2023. In his first tournament since 2022, he progressed through qualifying and won eight consecutive matches to capture the title in Monastir, Tunisia. He did not lose a set and won eight 6-0 sets throughout the tournament. He competed in another ITF event in Monastir the following week, winning two more matches to reach the quarterfinals before losing to Nicola Kuhn, ending the longest winning streak of his career. Following these results, he returned to the ATP rankings at world No. 944 on 15 January 2024. In February, he was nominated for the Polish Davis Cup team, winning a dead rubber against Maxim Shin of Uzbekistan.

Ranked No. 652, Majchrzak received a wildcard to compete at the Rwanda Challenger. He defeated Bogdan Bobrov, Juan Pablo Paz, Calvin Hemery and Max Houkes en route to his first Challenger final since 2022. Majchrzak defeated Marco Trungelliti in the final to win his fifth Challenger title and first since his return from the suspension. He competed again in the second Rwanda Challenger where he came through qualifying to extend his winning streak at the tournament to 10 matches, defeating Ivan Gakhov, David Pichler and Stefan Kozlov to reach his second consecutive semifinal. He lost to Marco Trungelliti in a rematch of the previous week's final. Following this he won another ITF-level title at Sharm-el-Sheikh without dropping a set.

In May, he returned to form following some injury problems in April. He reached the final the Macedonia Open but lost to teenager Joel Schwärzler in the final. A few weeks later, won the Bratislava Open. He advanced through the qualifying draw and defeated top four players ranked inside the top 300 to win the biggest title of his comeback so far. He defeated the likes of Ergi Kırkın, Dmitry Popko, Jérôme Kym and Henrique Rocha en route. The following week, he played his first tournament in Poland since 2022 at the Poznan Open. During this tournament, he defeated former top 10 player Pablo Carreño Busta en route to the semifinals where he lost to compatriot Maks Kaśnikowski after suffering from a mid-match wrist injury. and Daniel Elahi Galán to reach the final round of qualifying where he ultimately then lost to the in-form Mattia Belucci. His win over world No. 129 Galán marked his best win by ranking since his comeback.

In September, Majchrzak was a member of the Polish Davis Cup Team that lost to South Korea in the 2024 Davis Cup World Group I. At the 2024 Saint-Tropez Open he defeated former top 100 player Borna Gojo, Harold Mayot, and Matteo Martineau to reach the semifinals. In the semifinals he lost to former 10 player Lucas Pouille, who went on to win the title.

In October, Majchrzak won his third title of the year at the 2024 JC Ferrero Challenger Open in Villena, Alicante Province, Spain. He defeated Nicolas Moreno de Alboran in straight sets in the final. He then competed at his second ATP Tour-level tournament at the 2024 Stockholm Open where he defeated Swedish wildcard Rafael Ymer in the first round of qualifying. As a result, he returned to the top 115 in the ATP singles rankings on 21 October 2024. Poland reached the final. He then competed in qualifying event at the 2025 Australian Open. He saved a match point to defeat Marco Trungelliti in the opening round, before winning against Zachary Svajda, and Billy Harris to qualify for his first major since 2022. He lost in the opening round to Pablo Carreño Busta.

In March, he reached the semifinals of the 2025 San Diego Challenger, before qualifying for the main draw of 2025 Indian Wells Open. However, he withdrew from his first round match citing neck pain.

At the 2025 Grand Prix Hassan II, he qualified for the main draw and reached the semifinals defeating sixth seed Jaume Munar, Jesper de Jong, and former finalist and third seed Alexandre Muller. In the semifinals, he lost to Tallon Griekspoor. The following week, he won his eight ATP Challenger title at the 2025 Open Comunidad de Madrid and returned to the top 100 on 14 April 2025, for the first time since his ban. and Ethan Quinn. He defeated Arthur Rinderknech (who had upset 3rd seed Alexander Zverev in the first round) in straight sets to reach the fourth round at a Grand Slam for the first time and returned to the top 85 in the singles rankings on 14 July 2025. He ultimately lost to Karen Khachanov in the fourth round.

Following his Wimbledon run, he made the second round at the 2025 Swiss Open and won his ninth ATP Challenger title at the 2025 Kozerki Open.

At the US Open, he reached the third round for the second time at the tournament, with an upset over 9th seed Karen Khachanov, and achieved a career-high ranking in the top 65 on 8 September 2025, thus becoming the No. 1 ranked player from Poland. In the following round he retired against Leandro Riedi in the first set. This injury also prompted him to withdraw from Poland's Davis Cup tie against Great Britain.

2026: First ATP title, three Top 10 wins, Top 50 At the 2026 Australian Open Majchrzak lost to Fabian Marozsan in the second round in straight sets, after suffering from muscle pain.

At the 2026 Miami Open he reached the third round, defeating world No. 21 Learner Tien, recording his second top 30 win.

Majchrzak won his maiden ATP Tour title at the 2026 Libéma Open with upset wins over top seed Felix Auger-Aliassime , third seed Daniil Medvedev and second seed Alex de Minaur for his second, third and fourth top 10 wins. Majchrzak was just the sixth Polish man to reach a tour-level final in the Open Era, and the third to lift a tour-level trophy, joining 15-time champion Wojtek Fibak and Hubert Hurkacz. He became just the second man to earn three Top 10 wins en route to an ATP 250 title, since the series began, after Grigor Dimitrov in 2017 Brisbane. As a result he reached a new career-high ranking in the top 50 on 15 June 2026, of world No. 47.

Performance timeline

Singles Current through the 2026 Libéma Open.

ATP Tour finals

Singles: 1 (title) LegendGrand Slam (–)ATP 1000 (–)ATP 500 (–)ATP 250 (1–0)Finals by surfaceHard (–)Clay (–)Grass (1–0)Finals by settingOutdoor (1–0)Indoor (–)

ATP Challenger Tour finals

Singles: 15 (9 titles, 6 runner-ups) LegendATP Challenger Tour (9–6)Finals by surfaceHard (4–2)Clay (5–3)Grass (0–1)

Doubles: 4 (1 title, 3 runner-ups) LegendATP Challenger Tour (1–3)Finals by surfaceHard (1–0)Clay (0–3)

ITF Tour finals

Singles: 16 (11 titles, 5 runner-ups) LegendITF Futures/WTT (11–5)Finals by surfaceHard (4–0)Clay (7–5)

Doubles: 7 (5 titles, 2 runner-ups) LegendITF Futures/WTT (5–2)Finals by surfaceHard (0–0)Clay (5–2)

Significant Junior results

Junior Grand Slam tournaments

Doubles: 1 (title)

Youth Olympics

Singles: 1 (gold medal)

Mixed doubles: 1 (bronze medal)

Wins over top 10 players Majchrzak has a record against players who were, at the time the match was played, ranked in the top 10.