The 400 metres hurdles is a track and field hurdling event. The event has been on the Olympic athletics programme since 1900 for men and since 1984 for women.
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.
Allyson Michelle Felix is a retired American track and field athlete who competed in the 100 meters, 200 meters and 400 meters. She specialized in the 200 meters from 2003 to 2013, then gradually shifted to the 400 meters later in her career. At 200 meters, Felix is the 2012 Olympic champion, a three-time world champion (2005–2009), a two-time Olympic silver medalist, and the 2011 world bronze medalist. At 400 meters, she is the 2015 world champion, 2011 world silver medalist, 2016 Olympic silver medalist, 2017 world bronze medalist, and 2020 Olympic bronze medalist. Across the short distances, Felix is a ten-time U.S. national champion.
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.
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.
60 metres, or 60-meter dash, is a sprint event in track and field. It is a championship event for indoor championships, normally dominated by the best outdoor 100 metres runners. At indoor events, the 60 metres is run on lanes set out in the middle of the 'field', as is the hurdles event over the same distance, thus avoiding some of the effects of the banked track encircling the venue, upon which other track events in indoor events are run. At outdoor venues it is a rare distance, at least for senior athletes. The format of the event is similar to other sprint distances. The sprinters follow three initial instructions: 'on your marks', instructing them to take up position in the starting blocks; 'set', instructing them to adopt a more efficient starting posture, which also isometrically preloads their muscles. This will enable them to start faster. The final instruction is the firing of the starter's pistol. Upon hearing this the sprinters stride forwards from the blocks.
Usain St. Leo Bolt is a retired Jamaican sprinter, widely considered to be the greatest sprinter of all time. He is an eight-time Olympic gold medalist and the world record holder in the 100 metres, 200 metres, and 4 × 100 metres relay.
Sally Jepkosgei Kipyego is a Kenyan-born American long- and middle-distance runner. She was the silver medalist in the 10,000 metres at the 2011 World Championships in Athletics and the silver medalist in the same race at the 2012 Summer Olympics in London. She has a personal record of 30:38.35 minutes for that event and her 5000 metres best of 14:30.42 minutes makes her the second fastest Kenyan woman for the distance.
The 10-second barrier is the physical and psychological barrier of completing the 100 metres sprint in under ten seconds. The achievement is traditionally regarded as the hallmark of a world-class male sprinter. Its significance has become less important since the late 1990s, as an increasing number of runners have surpassed the ten seconds mark. The current men's world record holder is Usain Bolt, who ran a 9.58 at the 2009 IAAF World Championship competition.
Qatar competed at the 2012 Summer Olympics in London, which was held from 27 July to 12 August 2012. The country's participation at London marked its eighth appearance in the Summer Olympics since its début at the 1984 Summer Olympics. The delegation sent by the Qatar Olympic Committee consisted of twelve athletes in athletics, shooting, swimming and table tennis. The 2012 Games marked the first time Qatar sent female athletes to the Olympic Games; following the 2008 Summer Olympics, it had been one of only three countries, along with Saudi Arabia and Brunei, to never have done so.
The British Virgin Islands sent a delegation to compete at the 2012 Summer Olympics in London, United Kingdom, which took place between 27 July to 12 August 2012. The country's participation in London marked its eighth appearance at the Summer Olympics since its debut in the 1984 Summer Olympics. The British Virgin Islands delegation included two track and field athletes, 100 meter sprinters J'maal Alexander and Tahesia Harrigan-Scott. Alexander failed to progress through the heats whilst Harrigan-Scott was eliminated in her event's quarterfinals.
Hellen Onsando Obiri is a Kenyan middle- and long-distance runner. She is the only woman to have won world titles in indoor track, outdoor track and cross country. Obiri is a two-time Olympic 5,000 metres silver medallist from the 2016 Rio and 2020 Tokyo Olympics, where she also placed fourth over the 10,000 metres. She is a two-time world champion after winning the 5,000 m in 2017 and again in 2019, when she set a new championship record. Obiri also took world bronze for the 1,500 metres in 2013 and silver in the 10,000 m in 2022. She won the 3,000 metres race at the 2012 World Indoor Championships, claimed silver in 2014, and placed fourth in 2018. She is the 2019 World Cross Country champion. Obiri triumphed in the 2023 Boston Marathon, her second marathon race. She places fifth in the half marathon on the world all-time list.
Davide Manenti is an Italian sprinter. He competed in the 4 × 100 m relay event at the 2012 Summer Olympics and the 200 m event at the 2016 Summer Olympics. He has competed with the Italian national relay team and was a gold medallist in the 4 × 100 metres relay at the 2011 European Athletics U23 Championships, the 2013 Mediterranean Games, the 2018 Mediterranean Games and the 2021 World Athletics Relays. He holds a personal best of 10.48 seconds for the 100 metres and 20.44 seconds for the 200 metres.
Karsten Warholm is a Norwegian sprinter who competes in the 400 metres and 400 m hurdles. He is the 2020 Tokyo Olympic champion, a three-time world champion and the world record holder in the latter event.
Stephenie Ann McPherson is a Jamaican track and field athlete, who specializes in the 400 metres. She has won a bronze medal in the event at the 2013 World Championships, and then placed in the finals of both the 2016 Rio Olympics and the 2020 Tokyo Olympics and all four following World Championships between 2015 and 2022, consecutively. McPherson earned also a bronze at the 2022 World Indoor Championships. She added medals in the 4 x 400 metres relays, taking a silver at the 2016 Olympics, a gold in 2015 in Beijing, and a bronze in 2019.
Wayde van Niekerk is a South African track and field sprinter who competes in the 200 and 400 metres. In the 400 metres, he is the current world and Olympic record holder, having set the record when he won the event at the 2016 Olympics.
Elaine Thompson-Herah is a Jamaican sprinter who competes in the 60 metres, 100 metres and 200 metres. Regarded as one of the greatest sprinters of all time, she is a five-time Olympic champion, the fastest woman alive in the 100 m, and the second fastest alive in the 200 m.
Joshua Kiprui Cheptegei is a Ugandan long-distance runner. Cheptegei 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. Cheptegei set the world best time for the 5 kilometres in 2020, becoming the first person ever to run that distance under 13 minutes (12:51.) Cheptegei is the reigning Olympic champion in the 5000 m and the reigning three-time World champion in the 10,000 m. Cheptegei also won a gold medal in the 5000 m and 10,000 m at the 2018 Commonwealth Games and at the 2019 IAAF World Cross Country Championships.
Noah Lyles is an American professional track and field sprinter who primarily competes in the 100 meters and 200 meters. Lyles holds a personal best of 19.31 seconds in the 200 m, the American record and fourth fastest of all-time.
Cameron Burrell was an American sprinter. He was the NCAA Division I champion over 100 meters in 2018, and anchored the Houston Cougars to victory in the 4 × 100 meters relay in 2017 and 2018. He ran for the United States 4 × 100 m relay team at the World Junior Championships in 2012 and the World Relays in 2019, with the team earning gold and silver from each competition respectively. Additionally Burrell anchored the U.S. 4 × 100 m relay team to gold at the inaugural Athletics World Cup in 2018.
