Lukas Märtens (born 27 December 2001) is a German

swimmer Swimming is an individual or team racing sport that requires the use of one's entire body to move through water. The sport takes place in pools or open water (e.g., in a sea or lake). Competitive swimming is one of the most popular Olympic ...

. He is the reigning 400m freestyle

Olympic champion This article includes lists of all Olympic medalists since 1896, organized by each Olympic sport or discipline, and also by Olympiad. Medalist with most medals by sport Summer Olympic sports Sports that will appear in the 2028 Summer Olympics ar ...

Career

Märtens competed at the Olympics in

2020 The year 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of even ...

in the 200 metre freestlye, 400 metre freestyle, 1500 metre freestyle and 4 × 200 metre freestyle relay events, and in

2024 The year saw the list of ongoing armed conflicts, continuation of major armed conflicts, including the Russian invasion of Ukraine, the Myanmar civil war (2021–present), Myanmar civil war, the Sudanese civil war (2023–present), Sudane ...

where he won a gold medal in the 400 metre freestyle event and came 5th in the 200 metre freestyle event. In the 2025 Swim Open Stockholm, he broke the world record in the men's 400-meter freestyle, with a time of 3:39.96, beating

Paul Biedermann Paul Biedermann (; born 7 August 1986) is a German retired competitive swimmer, a 200 and 400 metre freestyle long course world champion. He holds the long course world record in the 200 meters freestyle, and formerly held world records in the l ...

's record from 2009.

References

External links

* 2001 births Living people Sportspeople from Magdeburg Swimmers from Saxony-Anhalt German male freestyle swimmers Olympic swimmers for Germany Swimmers at the 2020 Summer Olympics Swimmers at the 2024 Summer Olympics Olympic gold medalists for Germany Olympic gold medalists in swimming Medalists at the 2024 Summer Olympics World Aquatics Championships medalists in swimming European Aquatics Championships medalists in swimming 21st-century German sportsmen {{Germany-swimming-bio-stub