Ryk Neethling OIS is a South African businessman who rose to prominence as the three-times World Champion and four-times World Record Breaking Olympic swimming champion.
Kirsty Leigh Coventry Seward is a Zimbabwean swimmer and politician currently serving as the Minister of Youth, Sport, Arts and Recreation in the Cabinet of Zimbabwe since September 2018. A former Olympic swimmer and world record holder, she is the most decorated Olympian from Africa. She is a member of the International Olympic Committee (IOC), and was elected the Chairperson of the IOC Athletes' Commission, the body that represents all Olympic athletes worldwide in early 2018.
Jeremy Matthew Wariner is a retired American track athlete specializing in the 400 meters. He has won four Olympic medals and six World Championships medals. He is the joint sixth fastest competitor in the history of the 400 m event with a personal best of 43.45 seconds, behind Wayde van Niekerk, Michael Johnson and Butch Reynolds and the fifth fastest all-time mark when he set it in 2007.
Novlene Hilaire Williams-Mills, is a retired Jamaican track and field athlete. She won the bronze medal in the 400 metres at the 2007 World Championships. She is also a three-time Olympic silver medallist in the 4×400 metres relay. In 2015 she won relay gold alongside her Jamaican teammates.
Sanjay Claude Ayre is a retired Jamaican sprinter who specialized in the 400 meters. Ayre won a silver medal at the 2000 Summer Olympic Games. Ayre is a 2004 IAAF World Indoor Championship Gold medalist and a three-time World Outdoor Championship medalist.
Jason Richardson is an American track and field athlete who specializes in the 110 meter hurdles. He won the gold medal in the 110 meter hurdles at the 2011 World Championships in Daegu, and the silver medal in the same event at the 2012 Summer Olympics in London. His personal best for the event is 12.98 seconds, set in June 2012 at the U.S. Olympic Trials.
Oussama "Ous" Mellouli is a Tunisian swimmer who competes in the freestyle and medley events. He is a three-time Olympic medalist, is an African record holder, and trains with the USC Trojans team based at the University of Southern California, where he studied as a computer science undergraduate and swam collegiately.
David Gillick is an Irish international track and field athlete. He began his education in Our Lady's Boys School and attended St Benildus College secondary school in Kilmacud. He studied at Dublin Institute of Technology before moving to Loughborough University in the United Kingdom to train as a full-time athlete with coach Nick Dakin. Gillick specialises in the 400 metres and he won the European Indoor Championship in 2005 and 2007, as well as the Irish National Outdoor Championship in 2006 and 2007. He set the Irish Indoor record of 45.52 seconds in the 2007 final. The time also beat the Irish outdoor record of 45.58 and was within the Olympic 'A' qualifying standard for the 2008 Games. On 4 July 2009 he ran 44.77 seconds in a race in Madrid to set a new national record. He is also the 2009 Irish national 200 m champion.
LaShawn Merritt is a retired American track and field athlete who competed in sprinting events, specializing in the 400 metres. He is a former Olympic champion over the distance and his personal best of 43.65 seconds makes him the eleventh fastest of all time.
Kirani Zeno James COG is a Grenadian professional sprinter who specializes in the 400 metres. He won the 400 m at the World Championships in 2011 and won the gold medal at the 2012 London Olympics. In the 400 metres, James also won the silver medal at the 2016 Rio Olympics and a bronze medal at the 2020 Tokyo Olympics, thus becoming the first man to earn the full set of three medals in the centennial history of the event. He is Grenada's first Olympic medalist. He holds the Grenadian national record in both the 200 metres and 400 metres.
Michael Walter Mathieu is a retired Bahamian sprinter hailing 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.
John Walton Smith is a former American athlete, who competed in the sprints events during his career. He is best known for winning the 400 m event at the 1971 Pan American Games. He remains the world record holder for the 440 yard dash at 44.5 seconds. He set the record while winning the USA Outdoor Track and Field Championships on June 26, 1971 while running for the Southern California Striders. The record has stood since then due to metrification in the sport. Contemporary athletes rarely run or are timed officially for the extra 2.34 meters to equal 440 yards.
Katinka Hosszú is a Hungarian competitive swimmer specialized in individual medley events. She is a three-time Olympic champion and a nine-time long-course world champion. She is the owner of a Budapest-based swim school and swim club called Iron Swim Budapest, and a co-owner and captain of Team Iron, founding member of the International Swimming League.
The Michigan Wolverines men's track and field team is the intercollegiate track and field program representing the University of Michigan. The school competes in the Big Ten Conference in Division I of the National Collegiate Athletic Association (NCAA).
Nickel Ashmeade is a Jamaican sprinter who specialises in the 100 and 200 meters.
Angela Ballard is an Australian Paralympic athlete who competes in T53 wheelchair sprint events. She became a paraplegic at age 7 due to a car accident.
Shaunae Miller-Uibo is a Bahamian track and field sprinter who competes in the 200 and 400 metres. She is a two-time Olympic champion after winning the women's 400 metres at the 2016 Rio Olympics and again at the 2020 Tokyo Olympics.
Michael Prout is an American Paralympic swimmer.
Inaldo Justino de Sena is a Brazilian former male track and field sprinter who specialised in the 400 metres. He represented his country at the World Championships in Athletics in 1995 and took a bronze medal at the 1994 IAAF World Cup. He won two gold and four silver medals at the Ibero-American Championships in Athletics during his career.
Adrian Findlay is a Jamaican sprinter who specializes in the 400 meters. He won a silver medal in the 4x400 m relay at the 2008 World Indoor Championships in Valencia, along with Michael Blackwood, Edino Steele, and DeWayne Barrett. He also won a bronze medal in the 2004 NACAC Under 23 Championships in the 400 m hurdles.
Jamaica 
