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 fourth 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.
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.
Kerron Stephon Clement is a Trinidadian-born American track and field athlete who competes in the 400-meter hurdles and 400-meter sprint. He held the indoor world record in the 400-meter sprint, having broken Michael Johnson's mark in 2005.
Danny Everett is an American former track and field athlete who competed in sprinting events, specializing in the 400 metres. He won bronze medals in the 400m at the 1988 Olympic Games and at the 1991 World Championships, and won gold medals in the 4 × 400 m relay at the 1987 World Championships and the 1988 Olympic Games. His 400m best of 43.81 seconds when winning the 1992 US Olympic trials, moved him to second on the world all-time list and still ranks him 13th on the world all-time list.
Andrew Rock is an American sprinter who specializes in the 400 meter dash.
Anita Ann Howard Prather, née Anita Ann Howard, is a former American track and field athlete who specialized in the 400 meters.
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.
Monica Hargrove is an American track and field athlete who specializes in the 200- and 400-meter dash. She won the silver medal at the 2006 IAAF World Indoor Championships as part of the 4×400-meter relay team, and also set a world best in the sprint medley relay at the Penn Relays that year.
Ashley Spencer is an American track and field athlete who competes in the 400 metres and the 400 metres hurdles. In the 400m hurdles, she is the 2016 Olympic bronze medalist. In the 400m, she is the 2012 World Junior Champion and the 2016 World Indoor silver medalist. She is coached by 1996 Olympic bronze medalist Tonya Buford-Bailey.
David Verburg is an American track and field athlete who specializes in the 400 meters. He holds gold medals in the 4 × 400 m relay from the 2016 Olympics; the 2013 and 2015 World Championships; and the 2014 Indoor World Championships.
Tiffany Townsend is an American track and field sprinter who competes in the 100 and 200-meter dash. She has personal records of 11.13 and 22.26 seconds for the events, respectively.
Steven Gardiner is a Bahamian track and field sprinter competing in the 400 metres and 200 metres. He is the 2020 Olympic and 2019 world champion in the 400 m, and also won the silver medal at the 2017 World Championships in that event. His winning time of 43.48 s from the 2019 World Championships is the Bahamian record and makes him the sixth-fastest man in the history of the event. Gardiner also owns the Bahamian records in the outdoor 300 m and 200 m, with times of 31.83 s and 19.75 s respectively, and the world best in the indoor 300 m at 31.56 s.
Jenna Elizabeth Prandini is an American track and field athlete, known for sprinting, but originally began her career doing jumping events. She is a two-time national champion at 200 meters, a 2016 Olympian, and a 2020 Olympic silver medalist.
Kendall Baisden is an American track and field sprinter who specializes in the 400-meter dash. She holds a personal record of 50.46 seconds for the distance, set in 2014.
Michael Arthur Norman Jr. is an American sprinter. He holds the world best time in the indoor 400 meters at 44.52 seconds. Outdoors, his 43.45, set at the 2019 Mt. SAC Relays is tied as the #4 on the all time list. In 2016, he became the world junior champion in both the 200 meters and 4×100 meter relay. In 2022, he became the world champion in both the 400 meters and 4x400 meter relay.
D'Andre "DeeDee" Hill is an American track and field coach and former athlete. She competed in sprint events, mainly in 100-meter dash. Her personal record in the event was 10.92 seconds. She represented her country over 100 m at the 1996 Atlanta Olympics and shared in a gold medal in the 4×100-meter relay at the 1995 World Championships in Athletics, having run in the heats only.
Courtney Okolo is an American track and field sprinter who usually competes in the 400 metres. She starred at Carrollton (Texas) Newman Smith High School where she won multiple individual state championships.
Suziann Reid is an American-Jamaican former track and field sprinter who specialized in the 400-meter dash. She set a personal record of 50.74 seconds for the distance in 1999. She was a silver medalist with the American women's 4 × 400-meter relay team at the 1999 World Championships in Athletics. She was part of the World Championship team twice more, in 2001 and 2005, and helped the United States to silver at the 2002 IAAF World Cup and gold at the 2001 Goodwill Games.
Fredrick Lee Kerley is an American professional track and field sprinter who started his career competing in the 400 meters until 2020, when he transitioned to the 100 meters and 200 meters. He has earned several medals at the World Championships in the 400 m and 4 × 400 m relay including an individual bronze and a relay gold at the 2019 edition. Kerley claimed 100 m gold in the 2022 edition.
Brian Brown is an American male former track and field athlete who competed in the high jump. His career best was 2.34 m, set in 1990. He was the national champion at the USA Outdoor Track and Field Championships in 1989 and won the NCAA Indoor Division I title in 1990.
