The 4 × 100 metres relay or sprint relay is an athletics track event run in lanes over one lap of the track with four runners completing 100 metres each. The first runners must begin in the same stagger as for the individual 400 m race. Each runner carries a relay baton. Before 2018, the baton had to be passed within a 20 m changeover box, preceded by a 10-metre acceleration zone. With a rule change effective November 1, 2017, that zone was modified to include the acceleration zone as part of the passing zone, making the entire zone 30 metres in length. The outgoing runner cannot touch the baton until it has entered the zone, and the incoming runner cannot touch it after it has left the zone. The zone is usually marked in yellow, frequently using lines, triangles or chevrons. While the rule book specifies the exact positioning of the marks, the colours and style are only "recommended". While most legacy tracks will still have the older markings, the rule change still uses existing marks. Not all governing body jurisdictions have adopted the rule change.
The Silesian Stadium is a sport stadium located on the premises of Silesian Park in Chorzów, Poland. The stadium has a fully covered capacity of 54,378, after a recent refurbishment completed in October 2017. The stadium hosted many Poland national football team matches and for many decades was Poland's national stadium. After the National Stadium in Warsaw was completed, the Silesian Stadium lost that role. The stadium was not in operation between 2009 and 2017 due to its ongoing reconstruction.
Bruno Lins Tenório de Barros is a Brazilian sprinter who specializes in the 200 metres.
Chijindu "CJ" Ujah is a British athlete, specializing as a sprinter. The lead-off runner of the Great Britain 4 × 100 metres relay team that won both the World title in 2017 and the European title in 2016 and 2018, he also won the title in the 100 metres at the 2017 Diamond League final.
Zharnel Hughes is an Anguilla-born British sprinter who specialises in the 100 metres and 200 metres. Born and raised in the British Overseas Territory of Anguilla, he has competed internationally for Great Britain in the Olympic Games, World Athletics and European Athletics events, and for England at the Commonwealth Games, since 2015. A double Commonwealth Games, double European Championships gold medalist as part of the 4 x 100 metres relay, Hughes has twice been European champion individually; over 100 metres in 2018, and 200 metres in 2022. In 2023, he broke both British sprint records, before winning his first global individual medal, a bronze in the 100 metres at the 2023 World championships.
Athletics at the 2020 Summer Olympics were held during the last ten days of the Games. They were due to be held from 31 July – 9 August 2020, at the Olympic Stadium in Tokyo, Japan. Due to the COVID-19 pandemic, the games were postponed to 2021, with the track and field events set for 30 July – 8 August. The sport of athletics at these Games was split into three distinct sets of events: track and field events, remaining in Tokyo, and road running events and racewalking events, moved to Sapporo. A total of 48 events were held, one more than in 2016, with the addition of a mixed relay event.
The 4 × 100 metres relay at the Summer Olympics is the shortest track relay event held at the multi-sport event. The men's relay has been present on the Olympic athletics programme since 1912 and the women's event has been continuously held since the 1928 Olympic Games in Amsterdam. It is the most prestigious 4×100 m relay race at elite level.
Nethaneel Joseph Mitchell-Blake is a British sprinter who specialises in the 200 metres ad the 4 x 100 metre relay. He was the 2013 European Junior Champion and his personal best of 19.95 seconds ranks him as the second-fastest in Britain of all-time in the individual event. He is only the second Briton, after Adam Gemili to break both 10 seconds for 100 metres and 20 seconds for 200 metres. Part of the Great Britain 4 x 100-metre relay team that won the World title in 2017, he won his first major individual honour, a silver medal, in the individual 200 metres at the 2018 European Athletics Championships before claiming another relay title running for Great Britain, the eventual gold medalists, in the heats of the 4 x 100 metres.On 18 February 2022 it was announced that Nethaneel and his teammates CJ Ujah, Zharnel Hughes and Richard Kilty would be stripped of their 4 × 100 metres relay 2020 Summer Olympics silver medals after the Court of Arbitration for Sport found CJ Ujah guilty of a doping violation. Four years later, Mitchell-Blake won the bronze medal in the same event at the 2024 Summer Olympics, along with Hughes and Kilty, in addition to debutants Jeremiah Azu and Louie Hinchliffe.
Natalia Kaczmarek is a Polish sprinter who specialises in the 400 metres. She is the 2024 European champion as well as the European silver medalist from 2022. She also won the bronze medal at the 2024 Summer Olympics. Kaczmarek earned several global medals as part of 4 x 400 m relays, including gold in the mixed event and silver in the women's event at the 2020 Tokyo Olympics.
For the athletics at the 2020 Summer Olympics competitions, the following qualification systems were in place. Qualification ended on 29 June 2021, but for marathon and 50 km race walking, it ended on 31 May 2021. Some 1900 athletes, from 196 countries, competed. 103 countries qualified also through Universality places.
The 2020 Summer Olympics, officially known as the Games of the XXXII Olympiad, was an international multi-sport event held in Tokyo, Japan, from 23 July to 8 August 2021. The Games were postponed by one year as part of the impact of the COVID-19 pandemic on sports. However, the Games was referred to by its original date in all medals, uniforms, promotional items, and other related media in order to avoid confusion in future years. A total of 11,417 athletes from 206 nations participated in 339 events in 33 sports across 50 different disciplines.
The men's 100 metres event at the 2020 Summer Olympics took place on 31 July and 1 August 2021 at the Olympic Stadium. 84 athletes were expected to compete; 27 nations used universality places to enter athletes in addition to the 56 qualifying through standard time or ranking. 78 athletes from 59 nations competed. Marcell Jacobs won the gold medal, establishing twice, semifinal and final, the new European record, as well as collecting Italy's first medal in the men's 100 metres. The United States extended its podium streak in the event to six Games with Fred Kerley's silver - after he placed only third at the U.S. trials. Canadian Andre De Grasse won his second consecutive bronze medal in the 100 metres, while running a personal best. With Usain Bolt retired, Jamaica's three Games gold medal streak ended.
The women's 100 metres event at the 2020 Summer Olympics took place on 30 and 31 July 2021 at the Japan National Stadium. 71 athletes from 55 nations competed at the event.
The women's 4 × 100 metres relay event at the 2020 Summer Olympics took place on 5 and 6 August 2021 at the Japan National Stadium. There were 16 competing relay teams, with each team having 5 members from which 4 were selected in each round.
The women's 4 × 400 metres relay event at the 2020 Summer Olympics took place on 5 and 7 August 2021 at the Japan National Stadium. There were 16 competing relay teams, with each team having at least 5 members from which 4 were selected in each round.
The mixed 4 × 400 metres relay event at the 2020 Summer Olympics took place on 30 and 31 July 2021 at the Japan National Stadium. There were 16 competing relay teams, with each team having four members. It was the first mixed-gender relay in athletics held at the Olympic Games, as part of a larger focus on gender equality by the International Olympic Committee.
The men's 4 × 100 metres relay at the 2021 World Athletics Relays has been held at the Silesian Stadium on 1 and 2 May.
The men's 4 × 100 metres relay at the 2022 World Athletics Championships was held at the Hayward Field in Eugene on 22 and 23 July 2022.
The men's 4 × 100 metres relay at the 2023 World Athletics Championships was held at the National Athletics Centre in Budapest on 25 and 26 August 2023. It was the 19th edition of this relay at the World Athletics Championships since 1983.
