Renny Quow is a Trinidadian male track and field sprinter who specializes in the 400 metres and has made it to both the Olympic and World Finals in the event, a rare feat for athletes from the Caribbean in the 400m. He competes professionally for Adidas. He was born in Tobago. Quow remains the only quarter miler from Trinidad & Tobago to make it to every major 400m finals.
Mosito Lehata is a Mosotho athlete competing in sprinting events. He is the current holder of the Lesotho national record for the 100-meter at 10.11 seconds, and has consistently won the national track championships on shorter tracks. He was eliminated in the first round of the men's 200 m event at the 2012 Summer Olympics. Lehata found success in the 200 m event at the 2013 World Championships in Athletics when he finished in the first round ahead of Jamaican sprinter Usain Bolt and advanced to the semifinals. He set a new national record in the 200 m at the 2014 Commonwealth Games, finishing in 4th, four hundredths of a second behind the bronze medal winner.
Liemarvin Bonevacia is a Dutch sprinter specialising in the 400 metres. He won bronze medals in the event at the 2016 European Athletics Championships, and the 2017 and 2021 European Indoor Championships. Bonevacia earned also five major medals for the 4 × 400 m relays, either men's or mixed, including silver medal in the men's relay at the 2020 Tokyo Olympics.
Christine Day is a Jamaican sprinter who specializes in the 400 metres. She represented Jamaica at the 2012 Summer Olympics in the individual 400m and in the 4x400 metre relay. Day was eliminated in the semifinals of the individual 400m but she and teammates Rosemarie Whyte, Shericka Williams and Novlene Williams-Mills won bronze in the relay.
Meghan Beesley is an English track and field athlete specialising in the 400 metres hurdles. She competed at the 2013 World Championships narrowly missing the final. Earlier in her career, she also competed in the heptathlon. Beesley broke the world record for the rarely contested straight 200 metres hurdles by 0.69 seconds at the 2014 Great City Games in Manchester.
Nicholas Kiplagat Bett was a Kenyan track and field athlete who competed in the 400 metres hurdles. His personal best for the event is 47.79 seconds. He was a world champion in the event, having won in 2015, and a two-time bronze medallist at the African Championships in Athletics. He died in a road accident in Kenya at the age of 28.
Onkabetse Nkobolo is a Botswana sprinter specialising in the 400 metres. He competed at the 2015 World Championships in Beijing narrowly missing the semifinals. In addition, he won two medals at the 2015 African Games. His personal bests in the event are 45.10 seconds outdoors and 46.86 seconds indoors.
Ristananna Bailey-Cole is a Jamaican athlete specialising in the 400 metres hurdles. She represented her country at three consecutive World Championships reaching the semifinals in 2011 and 2013. She placed fifth at the 2016 Olympics. She made her best run to date at the IAAF World Championships in London on August 10, 2017, finishing with the bronze medal in a personal best 53.74.
Harold "Tre" Houston is a Bermudian sprinter who specializes in the 100 and 200 metres. Houston competed in the 200 metres at the 2015 World Championships in Beijing without advancing from the first round. A year later Houston would compete at the 2016 Olympic Games in Rio de Janeiro. Houston, who qualified with a personal best of 20.42, would go on to place sixth in his heat with a time of 20.85. Houston's appearance in the 200 meters would mark the first time in over 20 years Bermuda had been represented in the event.
Sydney Sido Siame is a Zambian sprinter. He competed in the 200 metres at the 2015 World Championships in Beijing without advancing from the first round. In addition, he won a gold medal at the 2014 Summer Youth Olympics.
Annsert Sylvester Whyte is a Jamaican athlete competing in the 400 metres hurdles. He represented his country at the 2013 and 2015 World Championships reaching the semifinals on both occasions. His personal best in the event is 48.07 seconds set at the 2016 Summer Olympics in the final of the event.
Niall Flannery is an English hurdler. He competed in the 400 metres hurdles event at the 2015 World Championships in Beijing reaching the semifinals. In addition he finished fourth at the 2014 Commonwealth Games.
Ashley Natasha Kelly is a sprinter from British Virgin Islands specialising in the 400 metres. She represented her country at the 2016 World Indoor Championships without advancing from the first round.
Baboloki Tirelo Thebe is a Botswana track and field sprinter who specialises in the 400 metres. He was a silver medallist in the 200 metres at the 2014 Summer Youth Olympics. He reached the semi-finals at the 2014 World Junior Championships in Athletics. He made a breakthrough in the 400 m in May 2016 with a run of 44.22 seconds, placing him third on the global seasonal lists and moving him into the all-time top 30 for the event. He competed at the 2016 Summer Olympics. His personal best in 400 meters is 44.02, which he ran in July 2017
Clarence Munyai is a South African sprinter. He is the current South African record holder in the 200 metres, with a time of 19.69, set on 16 March 2018 at the South African national championships. He is ranked 10th in the world for 200 metres and 12th for the 300 metres. He competed in the men's 200 metres at the 2016 Summer Olympics. He finished 3rd in his heat with a time of 20.66 seconds and did not qualify for the semifinals.
Creve Armando Machava is a Mozambican athlete specialising in the 400 metres hurdles. He represented his country at the 2017 World Championships without reaching the semifinals. In addition, he won the gold medal at the 2017 Islamic Solidarity Games.
Kyron McMaster is an athlete from the British Virgin Islands specialising in the 400 metres hurdles.
Glory Onome Nathaniel is a Nigerian athlete specialising in the 400 metres hurdles. She represented her country at the 2017 World Championships reaching the semifinals. Additionally, she won three silver medals at the 2017 Islamic Solidarity Games.
Olawunmi Emmanuel Arowolo is a Nigerian sprinter. He competed at the 2018 Commonwealth Games in the 200 metres and 4x100 metres relay. He was a member of the Nigerian team that qualified for the final only to suffer disqualification. In 2018, he competed at the African Championships in Asaba and won a silver medal in the 4×100 metres relay. In 2019, he was a member of the Nigerian 4 × 100 m relay team that won a silver medal in the 2019 African Games.
Srihari Nataraj is an Indian swimmer. He represented India at the 2019 World Aquatics Championships in Gwangju, South Korea. He qualified for Tokyo Summer Olympics after FINA approved his 'A' standard qualification time in men's 100m backstroke time trial at the Sette Colli Trophy in Rome.
Botswana 
