Michael Blackwood is a Jamaican male track and field athlete, who specialized in the 400 meters, his personal best being 44.60 set during his win at the 2002 IAAF World Cup. He was chosen as the Jamaica Sportsman of the Year in 2002, in that same year he was the world number one rank by IAAF in the 400 meters. He is the brother of Catherine Scott who earned a silver medal in the 2000 Sydney Olympic Games. Blackwood won the NAIA national 400 meters title in 1997. He is the winner of Jamaica 400 meters national championships three times. Blackwood holds the Big 12 conference record in the 400 meters since 2000 in the time of 44.69. He is an alumnus of The University of Oklahoma.
Roxbert Martin is a former Jamaican 400 metres runner, who was selected for the Jamaican 4x400 metres relay team at the 1996 Summer Olympics and won a bronze medal. He was part of the gold-medal-winning relay team at the 1998 Commonwealth Games, setting the championship record.
Gregory Haughton is a Jamaican 400 metres runner. He won three Olympic medals, one at the 1996 Summer Olympics and two at the 2000 Summer Olympics. His personal best for the 400 m was 44.56 seconds.
Jennifer Elaine "Jenny" Stoute is female English former sprinter. She represented Great Britain at the 1988 Olympic Games in Seoul and the 1992 Olympic Games in Barcelona, where she won a bronze medal in the 4x400 metres relay. She also appeared as Rebel in the ITV show Gladiators from 1996 to 1999.
Inez Turner is a retired female sprinter and middle-distance runner from Jamaica.
Jamaica competed at the 1996 Summer Olympics in Atlanta, United States.
Christine Ijeoma Ohuruogu, MBE is a British former track and field athlete who specialised in the 400 metres, the event for which she is an Olympic, World and Commonwealth champion. The Olympic champion in 2008, and silver medalist in 2012, she is a double World Champion, having won the 400 m at the 2007 and 2013 World Championships. She has also won six World championship medals in the women's 4 × 400 m relay as part of the Great Britain and Northern Ireland team and bronze Olympic medals with the women's 4 × 400 m relay at the 2008 Beijing Games and the 2016 Rio Games, her final Olympics. Ohuruogu shares with Merlene Ottey and Usain Bolt the record for medalling in most successive global championships – 9 – between the 2005 World Championships in Athletics and the 2016 Summer Olympics.
Robert "Rob" John Tobin is an English sprinter. He currently has a PB in the 400 m of 45.01 seconds.
Deon Marie Hemmings is a former female 400 metres hurdler.
Linda Staines is a female former British track and field athlete who competed mainly in the 400 metres. She represented Great Britain at the 1988 Olympic Games in Seoul in both the 400 metres and 4 x 400 metres relay, and won a bronze medal in the 4 × 400 m relay at the 1993 World Championships. She also won four medals at the Commonwealth Games, including an individual silver medal in the 400 metres in 1990 and two relay gold medals.
Since the early 20th century, Jamaica has won 42 Commonwealth Golds, 14 World Championship Golds and 17 Olympic gold medals in athletics alone. Jamaica has a population of 2.85 million people, making it the 138th most populous country in the world.
Michael Mathieu is a retired Bahamian sprinter from Freeport, Grand Bahama who specialized in the 200 metres and 400 metres. He was part of the Bahamian silver medal-winning team in the men's 4×400 metres relay at the 2008 Beijing Olympics, running second leg and recording a 44.0 split, and the gold medal-winning team at the 2012 Summer Olympics. He was also a part of second place relay team at the 2007 World Championships. He won the bronze medal in the 4x400 metres relay in the 2016 Summer Olympics.
David Kitur is a retired Kenyan runner, who specialised in 400 metres.
Muizat Ajoke Odumosu Alademerin is a Nigerian track and field athlete who specialises in the 400 metres and the 400 metres hurdles. She represented Nigeria at the 2008 and 2012 Summer Olympics and competed at the World Championships in Athletics in 2007, 2009, 2011 and 2013. She was the bronze medallist at the 2007 All-Africa Games and went on to become the continental champion with a win at the 2008 and 2012 African Championships.
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.
The Texas Longhorns women's track and field program is coached by Edrick Floréal. Other notable coaches have included Beverly Kearney, who has guided the Lady Longhorns to six NCAA Championships: Indoor Championships in 1998, 1999, and 2006, and Outdoor Championships in 1998, 1999, and 2005; and Terry Crawford, whose teams won Indoor Championships in 1986, 1988, and 1990, and Outdoor Championships in 1982 and 1986. Crawford's athletes also won the 1986 Women's Cross Country Championship. The program's first title was the 1982 AIAW outdoor track and field championship.
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.
Shericka Jackson, OD is a Jamaican sprinter competing in the 100 m, 200 m, and 400 metres. In 2022, she became the fastest woman alive and second fastest woman of all time in the 200 metres.
Patience Okon George is a Nigerian sprinter. She competed in the 400 metres event at the 2015 World Championships in Athletics in Beijing, China and also at the 2016 Rio Olympic Games. George is a two-time African Championships bronze medallist in the individual 400 metres event. She is also a three-time Nigerian national champion in the 400 metres.
Dominique Blake is a Jamaican track and field athlete. Blake won a gold medal at the 2010 Central American and Caribbean Games and was accidentally awarded a bronze medal at the 2012 Summer Olympics. She was banned for 4+1⁄2 years after testing positive for methylhexanamine and returned to athletic competition in 2017.
Jamaica 
