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.
Canada has competed at 28 Summer Olympic Games, missing only the inaugural 1896 Summer Olympics and the boycotted 1980 Summer Olympics. This count includes the 1906 Olympic Games, deemed unofficial 43 years after they were held. The nation made its debut at the 1900 Summer Olympics. Canada competes under the IOC country code CAN.
India first participated at the Olympic Games in 1900, becoming the first Asian nation to do so. A lone athlete Norman Pritchard represented the country and won two medals – both silver – in athletics. The nation first sent a team to the Summer Olympic Games in 1920 and has participated in every Summer Games since then. India has also competed at several Winter Olympic Games after its debut in 1964.
Competitors at the Olympic Games have used banned athletic performance-enhancing drugs.
The 2014 Winter Olympics, officially known as the XXII Olympic Winter Games, were a winter multi-sport event held in Sochi, Russia, from 7 to 23 February. A total of 2,873 athletes from 88 nations participated in 98 events in 7 sports across 15 different disciplines.
Aaron Brown is a Canadian sprinter who specializes in the 100 and 200 metres. As part of Canada's 4×100 m relay team, he is the 2024 Olympic gold medalist, 2020 Olympic silver medalist, 2016 Olympic bronze medalist and the 2022 World champion. Brown has also won two World bronze medals as part of Canada's 4×100 m relay teams in 2013 and 2015.
The 2012 Summer Olympics, officially known as the Games of the XXX Olympiad, was a summer multi-sport event held in London, the capital of the United Kingdom, from 27 July to 12 August. A total of 10,768 athletes from 204 nations participated in 302 events in 26 sports across 39 different disciplines.
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.
Brendon Rodney is a Canadian sprinter. As a member of the Canadian men's relay team, he is a three-time Olympic medallist in the 4 × 100 metres relay, taking gold in 2024, silver in 2020 and bronze in 2016. He is also the 2022 World champion and 2015 World bronze medallist in the same event.
Nethaneel Joseph Mitchell-Blake is a British sprinter who specialises in the 200 metres and 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.
The People's Republic of China competed at the 2020 Summer Olympics in Tokyo, Japan. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021 because of the COVID-19 pandemic. It was the nation's eleventh appearance at the Summer Olympics since its debut in 1952. The opening ceremony flag-bearers for China were volleyball player Zhu Ting and taekwondo practitioner Zhao Shuai. Sprinter Su Bingtian, who broke the Asian record of 100 m during the Games, was the flag-bearer for the closing ceremony. The delegation competed in all sports except baseball (softball), handball, and surfing.
Great Britain, or in full Great Britain and Northern Ireland, the team of the British Olympic Association (BOA), which represents the United Kingdom, competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the Games were postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic.
India competed at the 2020 Summer Olympics in Tokyo, Japan. Originally scheduled to take place in July-August 2020, the games were postponed to 23 July to 8 August 2021, due to the COVID-19 pandemic. The Games marked the nation's 25th appearance at the Summer Olympics after having made its official debut at the 1900 Summer Olympics.
The 2020 Summer Olympics, officially known as the Games of the XXXII Olympiad, were 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 4 × 100 metres relay event at the 2020 Summer Olympics took place on 5 and 6 August 2021 at the Olympic Stadium. There were 16 competing relay teams, with each team having 5 members from which 4 were selected in each round.
Saint Kitts and Nevis competed at the 2020 Summer Olympics in Tokyo. Originally scheduled to take place from 24 July to 9 August 2020, the event was postponed to 23 July to 8 August 2021, because of the COVID-19 pandemic. This was the nation's seventh appearance at the Summer Olympics since their debut in 1996. The delegation consisted of two athletes, competing in athletic events; Jason Rogers and Amya Clarke. For the first time, in an effort to promote gender equality, two flagbearers, one male and one female were allowed at the Olympics. Both athletes from Saint Kitts and Nevis bore the national flag at the opening ceremony. Saint Kitts and Nevis did not win any medals during the Tokyo Olympics. Rogers ranked third in the first round of the men's 100 metres and advanced to the semifinals where he was eliminated. Clarke also ranked third in her preliminary round of the women's 100 metres and advanced to round 1 where she ranked 7th and was eliminated.
Jerome Blake is a Canadian track and field athlete specializing in the sprint events. As a member of the Canadian 4 × 100 m relay team, he is the 2024 Olympic gold medallist, 2020 Olympic silver medallist and the 2022 World champion.
