The 400 metres, or 400-meter dash, is a sprint event in track and field competitions. It has been featured in the athletics programme at the Summer Olympics since 1896 for men and since 1964 for women. On a standard outdoor running track, it is one lap around the track. Runners start in staggered positions and race in separate lanes for the entire course. In many countries, athletes previously competed in the 440-yard dash (402.336 m)—which is a quarter of a mile and was referred to as the 'quarter-mile'—instead of the 400 m (437.445 yards), though this distance is now obsolete.
The 100 metres, or 100-meter dash, is a sprint race in track and field competitions. The shortest common outdoor running distance, the 100-meter (109.36 yd) dash is one of the most popular and prestigious events in the sport of athletics. It has been contested at the Summer Olympics since 1896 for men and since 1928 for women. The inaugural World Championships were in 1983.
Blanka Vlašić is a Croatian former track and field athlete who specialized in the high jump. She is a two-time world champion and double Olympic medallist who ranks as the joint second highest female jumper of all time with her personal best of 2.08 m. She is the Croatian record holder in the event, and the former indoor world champion.
Dame Valerie Kasanita Adams is a retired New Zealand shot putter. She is a four-time World champion, four-time World Indoor champion, two-time Olympic, three-time Commonwealth Games champion and twice IAAF Continental Cup winner. She has a personal best throw of 21.24 metres (69.7 ft) outdoors and 20.98 metres (68.8 ft) indoors. These marks are Oceanian, Commonwealth and New Zealand national records. She also holds the Oceanian junior record (18.93 m) and the Oceanian youth record (17.54 m), as well as the World Championships record, World Indoor Championships record and Commonwealth Games record.
The 3000 metres steeplechase or 3000-meter steeplechase is the most common distance for the steeplechase in track and field. It is an obstacle race over the distance of the 3000 metres, which derives its name from the horse racing steeplechase.
Inga Eduardovna Abitova is a Russian long-distance runner, who specializes in the 10,000 metres and the marathon. She was the 2006 European Champion in the 10,000 m and reached the final at the 2008 Summer Olympics.
Vivian Jepkemoi Cheruiyot is a Kenyan long-distance runner. She represented Kenya at the Summer Olympics in 2000, 2008, 2012, and 2016, winning the silver medal in the 5000 metres and bronze in the 10,000 metres at the 2012 London Olympics as well as gold in the 5000 m and silver in the 10,000 m at the 2016 Rio Olympics, setting a new Olympic record in the former. Cheruiyot won the silver medal in the 5000 m at the 2007 World Championships in Athletics and became the world champion in the event at the 2009 edition, repeating this achievement in 2011, when she also won the 10000 m. She added gold for the latter event at the 2015 World Championships in Athletics. After taking a silver in the 3000 metres at the 2010 World Indoor Championships, Cheruiyot won a number of outdoor 5000 m titles that year, becoming Commonwealth Games, African and Continental Cup champion, as well as winning the Diamond League title.
Levern Donaline Spencer, SLMM is a Saint Lucian retired athlete and high jumper. Spencer was a four-time Olympian for Saint Lucia and competed in eight World Championships. She was also a gold medalist at both the Commonwealth Games and Pan-American Games.
Genzebe Dibaba Keneni is an Ethiopian middle- and long-distance runner. A 1500 metres 2016 Rio Olympics silver medalist, she won a gold medal in this event and a bronze in the 5000 metres at the 2015 World Championships. Genzebe is the current world record holder for the indoor events of the one mile, 3000m and 5000m.
Anita Włodarczyk is a Polish hammer thrower. She is the 2012, 2016 and 2020 Olympic champion, and the first woman in history to throw the hammer over 80 m; she currently holds the women's world record of 82.98 m. She is considered the greatest women's hammer thrower of all time.
Brittney Davon Reese is a retired American long jumper, Olympic gold medalist, and a seven-time world champion. Reese is the indoor American record holder in the long jump with a distance of 7.23 meters.
Mokgadi Caster Semenya OIB is a South African middle-distance runner and winner of two Olympic gold medals and three World Championships in the women's 800 metres. She first won gold at the World Championships in 2009 and went on to win at the 2016 Olympics and the 2017 World Championships, where she also won a bronze medal in the 1500 metres. After the doping disqualification of Mariya Savinova, she was also awarded gold medals for the 2011 World Championships and the 2012 Olympics.
Lisa Jane Weightman is an Australian long distance runner and four time Olympian who specializes in the marathon event. At the 2020 Tokyo Olympics she came 26th in the Women's marathon with a time of 2:34.19, 7 minutes behind the eventual winner, Peres Jepchirchir.
Dafne Schippers is a Dutch retired track and field athlete who competed in sprinting and the combined events. She holds the European record in the 200 metres with a time of 21.63 seconds, making her the sixth-fastest woman of all time at this distance. She also holds the Dutch records in the 100 metres and long jump, and shares the Dutch records in the 60 metres indoor and 4 × 100 metres relay.
Dalilah Muhammad is an American track and field athlete who specializes in the 400 meters hurdles. She is the 2016 Rio Olympics champion and 2020 Tokyo Olympics silver medalist, becoming at the latter the then-second-fastest woman of all time in the event with her personal best of 51.58 seconds. Muhammad was second at both the 2013 and 2017 World Championships to take her first gold in 2019, setting the former world record of 52.16 s. She was the second female 400 m hurdler in history, after Sally Gunnell, to have won the Olympic, World titles and broken the world record. At both the 2019 World Championships and Tokyo Games, she also took gold as part of women's 4 × 400 metres relay team.
Zsanett Bernadett Kaján is a Hungarian professional footballer who plays as a forward for Italian club ACF Fiorentina and the Hungarian national team.
Abbey Cooper is an American middle- and long-distance runner. Cooper is the most decorated Ivy League athlete in track and field and cross country running. She is the first Dartmouth female distance runner to win an NCAA title. She won a total of seven NCAA titles in her career. In 2014, she became a professional runner for New Balance.
The women's 4 x 800 metres relay at the 2015 IAAF World Relays was held at the Thomas Robinson Stadium on 3 May.
Kendra "Keni" Harrison is an American hurdler. Harrison held the world record in the women's 100 metres hurdles with a time of 12.20 seconds, set on July 22, 2016 at the London Müller Anniversary Games, breaking the previous world record of 12.21 seconds achieved nearly 28 years earlier by Bulgarian athlete Yordanka Donkova.
Regine Tugade-Watson is a Guamanian sprinter. She competed in the women's 100 metres event at the 2015 World Championships in Athletics in Beijing, China, as well as the girl's 200 m event at the 2015 World Youth Championships in Cali, Colombia. She competed in the women's 100 m preliminary round of the 2016 Summer Olympics. Tugade finished third place in her heat but did not progress further. She also competed in her second World Championships in 2017, competing in the 200 m. She holds seven Guamanian national records in athletics. In July 2021 she was a flag bearer in the Parade of Nations at the Tokyo Olympics opening ceremony.
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