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.
Bernard Kipchirchir Lagat is a Kenyan-American former middle and long-distance runner.
The 1500 metres or 1,500-metre run is the foremost middle distance track event in athletics. The distance has been contested at the Summer Olympics since 1896 and the World Championships in Athletics since 1983. It is equivalent to 1.5 kilometers or approximately 15⁄16 miles. The event is closely associated with its slightly longer cousin, the mile race, from which it derives its nickname "the metric mile".
Sunday Bada was a Nigerian sprinter who specialized in the 400 metres event. He won three medals at the World Indoor Championships, including a gold medal in 1997. His personal best time was 44.63 seconds, and with 45.51 seconds indoor he holds the African indoor record. He set a national record in the 4 x 400 metres relay at the 2000 Olympics, where the Nigerian team also won gold medals after the disqualification of the US team who had finished first.
Churandy Thomas Martina is a Dutch sprinter. He originally placed second in the 200 metres at the 2008 Beijing Olympics but was later disqualified due to a lane violation. Martina secured four and two individual top-five finishes at the Summer Olympics and World Athletics Championships respectively. He was the 100 metres 2007 Pan American Games champion representing the Netherlands Antilles and claimed three individual titles at the Central American and Caribbean Games. He won gold medals in the 200 m and 100 m at the 2012 and 2016 European Athletics Championships respectively.
Lornah Kiplagat is a Dutch professional long-distance runner. She was born in Kabiemit, Rift Valley Province, Kenya and moved to the Netherlands in 1999. She gained Dutch citizenship in 2003 and has competed for the Netherlands ever since. She used to run not only road events but also in cross country and track and field.
Ornella Ferrara is an Italian long-distance runner who specialized in the marathon race. She represented her country twice at the Summer Olympics and was the bronze medalist in the marathon at the 1995 World Championships in Athletics. She has won marathon races in her home country, including the Rome City Marathon, Carpi Marathon and Venice Marathon.
Shannon Solares-Rowbury is an American middle-distance runner from San Francisco, California. After competing collegiately for Duke University, she turned professional in 2007. Rowbury has represented the United States at the 2008, 2012, and 2016 Summer Olympics, winning a bronze medal in 2012. She also represented the United States at the World Championships in 2009, 2011, 2013, 2015 and 2017, winning the bronze medal in the 1500 meters in 2009. In 2015, Rowbury helped set the world record with the U.S. team for the distance medley relay event, and set a then-American record for 1500 meters on July 17, 2015, breaking Mary Slaney's 32 year-old mark with a time of 3:56.29.
Jennifer Simpson is an American middle- and long-distance runner, formerly a steeplechaser. She won the gold medal in the 1500 meters at the 2011 World Championships, silvers at the 2013 and 2017 World Championships, and a bronze at the 2016 Rio Olympics, becoming the first American woman to win an Olympic medal in the event.
Duane Renard Solomon is a retired American Olympic track athlete, primarily known for racing the 800 meters. He ran for his home country in the IAAF World Championships in 2007 and 2013 as well as in the 2012 Olympic Games. He also took the gold medal at the North American, Central American and Caribbean Under 23 Championships in 2006.
Ricardo Chambers is a Jamaican track and field athlete who specialises in the 400 metres.
Andrés Manuel Díaz is a former Spanish middle-distance runner. He represented Spain at the Olympics in 1996 and 2000 and was the bronze medallist over 1500 metres at the 1999 IAAF World Indoor Championships.
Conseslus Kipruto is a Kenyan middle-distance runner who specializes in the 3000 metres steeplechase. He was the 2016 Rio Olympic champion in the event. At the World Athletics Championships, Kipruto won gold medals in 2017 and 2019, silver medals in 2013 and 2015, and a bronze in 2022. In 2018, he captured gold medals at the African Championships and Commonwealth Games. He is a four-time Diamond League winner.
Amel Tuka is a Bosnian middle-distance runner who competes in the 800 metres. His achievements include a silver medal at the 2019 World Championships as well as a bronze medal at the 2015 World Championships. Tuka holds national records in the 400 m and 800 m disciplines.
Sifan Hassan is a Dutch middle- and long-distance runner. She is most recognized for her versatility in running championship and world-leading performances in widely disparate distances. She completed an unprecedented triple at the 2020 Tokyo Olympics, winning gold medals in both the 5,000 metres and 10,000 metres and a bronze medal for the 1,500 metres. Hassan is the only athlete in Olympic history to win medals across a middle-distance event and both long-distance races in a single Games. She is only the second of three women to complete an Olympic distance double. At the Paris 2024 Olympics, Hassan secured a bronze medal in both the women's 5,000 m and 10,000 m events and gold in the women's marathon, becoming the only woman to win the Olympic gold medal in the 5,000 metres, 10,000 metres and Marathon races.
Betsy Saina is a Kenyan-American athlete in long distance running. She was born in Kenya and now competes for the United States.
Joshua Kiprui Cheptegei is a Ugandan long-distance runner. He is the current world record holder for the 5000 metres and the 10,000 metres, and holds the world best time over the 15 kilometres distance.
Filip Mangen Ingebrigtsen is a Norwegian middle-distance runner who represents Sandnes Idrettslag. In 2016, Ingebrigtsen became European Champion at 1500 meters during the European Championships in Amsterdam, and took bronze over the same distance at the World Championships in 2017 in London. He previously held the Norwegian 1500m record with the time 3:30.01, set at a Diamond League meet in Monaco on 20 July 2018. At the 2019 London Diamond League Ingebrigtsen finished second to Samuel Tefera in the mile. With a time of 3:49.60 Ingebrigtsen ran a national record and new personal best.
Torrie Lewis is an Australian track and field athlete who competes as a sprinter. She has won Australian national titles over 100m and 200m. Prior to going to Paris for the 2024 Olympics, she set a new Australian 100m national record of 11.10 seconds in January 2024.
