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.
Deshabandu Robosingho Arachchilage Don Sugath Thilakaratne, commonly as Sugath Thilakaratne, is a Sri Lankan retired sprinter and a politician. Specialized in the 400 metres, Thilakaratne is the current record holder for 400m event at Asian Athletics Championships.
Deshabandu Kobala Vithanage Damayanthi Dharsha-Kobalavithanage is a retired Sri Lankan athlete who competed in the 200 and 400 metres race events. She is the current Asian Games record holder in women's 200m event and current Asian Athletics Championships record holder in women's 400m event as well as national record holder in women's 400m. She is regarded as one of the greatest track and field athletes to have represented Sri Lanka at international level alongside her teammate Susanthika Jayasinghe. She is also regarded as the most successful Sri Lankan athlete at the Asian Games with a medal haul of four medals including three gold medals and became the first Sri Lankan female athlete to clinch three Asian Games gold medals. She represented Sri Lanka at the Olympics on three occasions in 1992, 2000 and 2004. She also represented Sri Lanka at the Commonwealth Games on four occasions in 1994, 1998, 2002 and 2006 as well as at the South Asian Games on four occasions.
Shehan Abeyptiya is a Sri Lankan male athlete who won 3 gold medals at the 2008 Commonwealth Youth Games.
Jauna Murmu is an Indian sprint runner and hurdler from Odisha who specializes in 400 metres and 400 metres hurdles. She belongs to Mayurbhanj District of Odisha. She has received coaching from Arun Kumar Das and Subash Chandra Dasmohapatra. She is presently employed by with ONGC
Abbas Abubakar Abbas is a Nigerian-born Bahraini athlete sprinter who competes internationally for Bahrain. He was the silver medallist in the 400 metres at the 2014 Asian Games. He has a personal best of 44.90 seconds for the event.
Abdalelah Haroun Hassan was a Qatari track and field sprinter. He specialised in the 400 metres. He was the 2015 Asian champion in the event and holds the Asian indoor record.
Nimali Waliwarsha Konda Liyanarachchi is a Sri Lankan 800 m runner and current national record holder in women's 1500m event. She is also believed to be the first Sri Lankan woman to have competed in steeplechase events. She became the first Sri Lankan woman to complete the distance of 3000 metres in steeplechase event under 11 minutes. She won the best athlete award twice at the Presidential award ceremonies by the Sports Ministry including the Most Outstanding Sportswoman of the Year in 2015. She is currently attached to Sri Lanka Air Force.
Hiruni Wijayaratne is a Sri Lankan distance athlete. She holds eleven Sri Lankan national records for road and track events as of 2022, including the women's 10,000 metres and marathon.
Ekanayake Mudiyaselage Idame Gedara Indunil Madushan Herath is a Sri Lankan middle-distance runner who specialises in the 800 metres. He won a silver medal at the 2017 Asian Indoor and Martial Arts Games.
Sri Lanka competed at the 2018 Commonwealth Games in the Gold Coast, Australia from April 4 to April 15, 2018.
Sri Lanka participated at the 2018 Summer Youth Olympics in Buenos Aires, Argentina from 6 October to 18 October 2018.
Dinusha Hansani Gomes, also known as Hansani Gomes, is a Sri Lankan female weightlifter. She was named as one of the members of the Sri Lankan contingent at the 2018 Commonwealth Games and claimed a bronze medal in the women's 48kg event on the opening day of the competition on 5 April 2018, which was also the second medal earned by Sri Lanka at the 2018 Gold Coast Commonwealth Games and was also the second medal secured by the Sri Lankan contingent in weightlifting category. Gomes also won Sri Lanka's first ever weightlifting medal by a woman at the Commonwealth Games.
Sri Lanka participated at the 2018 Asian Games in Jakarta and Palembang, Indonesia from 18 August to 2 September 2018.
Parami Wasanthi Maristela Kalumarakkalage also known as Parami Wasanthi Maristela is a Sri Lankan track and field athlete who competes in the 2000 metre steeplechase event. She is the first Sri Lankan to have won a Youth Olympic medal. She pursued her secondary education at Kuliyapitiya Central School.
Abeykoon Mudiyansalage Yupun Priyadarshana, known as Yupun Abeykoon, also referred to as Yupun Priyadarshana, is a Sri Lankan track and field athlete and a national record holder in men's 100m, men's 200m and in men's indoor 60m. On 3 July 2022, he became the first South Asian to break the 10-Second barrier for the men's 100 meters event at the Resisprint International competition, with a timing of 9.96 seconds, in La Chaux-de-Fonds, Switzerland. He currently resides in Italy as he went on a scholarship to Italy in 2015. He is also attached to the Electronic and Mechanical Engineering Regiment of the Sri Lanka Army and represents Army Sports Club. He is currently regarded as the fastest Sri Lankan man as well as fastest South Asian man in men's 100m and 200m disciplines.
Kotambewaththe Gedara Dilshi Maheesha Shyamali Kumarasingha also simply known as K. G. D. M. S. Kumarasinghe or Dilshi Kumarasinghe aka Shyamali Kumarasinghe is a Sri Lankan track and field athlete and a national record holder in women's 800m. She is currently coached by Susantha Fernando.
Kaushalya Madushani, also known as Kawshalya Madushani Edirippulilage or Kaushalya Madhushani, was a Sri Lankan track and field athlete who mainly competed in the hurdles event. She was a five-time national champion in the women's 400m hurdles. She was the defending national champion in women's 400m hurdles prior to her death when she defended her title successfully in 2022. She was attached to the Sri Lankan Army.
Nadeesha Ramanayake is a Sri Lankan track and field athlete who competes mainly in the 400 metres sprint. She won gold medal at the 2023 Asian Athletics Championships held in Bangkok in the 400m women's event. She is a member of the Sri Lanka Army Women's Corps.
