Achievements
| Year | Competition | Venue | Position | Event | Notes |
|---|---|---|---|---|---|
Representing  China | |||||
| 1992 | World Junior Championships | Seoul, Korea | 8th | 400 m | 54.30 |
| 1993 | Chinese National Games | Beijing, China | 6th | 400 m | 52.07 |
| 1st | 4 × 400 m | 3:24.28 | |||
Bai Xiaoyun (born 15 June 1973), is a retired Chinese sprinter who specialized in the 400 metres.
She is the current Asian record holder in the 4 x 400 metres relay in a time of 3:24.28 seconds, achieved in September 1993 in Beijing with Cao Chunying, An Xiaohong and Ma Yuqin.
| Year | Competition | Venue | Position | Event | Notes |
|---|---|---|---|---|---|
| Representing China | |||||
| 1992 | World Junior Championships | Seoul, Korea | 8th | 400 m | 54.30 |
| 1993 | Chinese National Games | Beijing, China | 6th | 400 m | 52.07 |
| 1st | 4 × 400 m | 3:24.28 | |||
Marie-José Pérec is a retired French track and field sprinter who specialised in the 200 and 400 metres and is a three-time Olympic gold medalist. She was born in the French overseas department of Guadeloupe and moved to Paris when she was 16 years old.
Sprinting is running over a short distance at the top-most speed of the body in a limited period of time. It is used in many sports that incorporate running, typically as a way of quickly reaching a target or goal, or avoiding or catching an opponent. Human physiology dictates that a runner's near-top speed cannot be maintained for more than 30–35 seconds due to the depletion of phosphocreatine stores in muscles, and perhaps secondarily to excessive metabolic acidosis as a result of anaerobic glycolysis.
The 400 metres hurdles is a track and field hurdling event. The event has been on the Olympic athletics programme since 1900 for men and since 1984 for women.
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.
The 4 × 400 metres relay or long relay is an athletics track event in which teams consist of four runners who each complete 400 metres or one lap, totaling 1600 meters. It is traditionally the final event of a track meet. The first leg and the first bend of the second leg are run in lanes. Start lines are thus staggered over a greater distance than in an individual 400 metres race; the runners then typically move to the inside of the track. The slightly longer 4 × 440 yards relay, on an Imperial distance, was a formerly run British Commonwealth and American event, until metrication was completed in the 1970s.
Sunday Bada was a Nigerian sprinter who specialized in the 400 metres event. He won three medals at the World Indoor Championships, including a gold medal in 1997. His personal best time was 44.63 seconds, and with 45.51 seconds indoor he holds the African indoor record. He set a national record in the 4 x 400 metres relay at the 2000 Olympics, where the Nigerian team also won gold medals after the disqualification of the US team who had finished first.
Natalya Nikolayevna Antyukh is a Russian sprinter who specializes in the 400 metres and 400 metres hurdles. She won the bronze medal in the 400 metres and a silver for the 4 × 400 m relay at the 2004 Summer Olympics in Athens.
Yuliya Sergeyevna Pechonkina, née Nosova is a Russian former athlete who specialized in the 400 metres hurdles and 4 × 400 metres relay. She was previously married to former sprinter Evgeny Pechonkin.
Ma Yuqin is a Chinese sprinter who specialized in the 400 metres.
The 1989 Asian Athletics Championships was the eighth edition of the international outdoor athletics competition between Asian nations, organised by the Asian Athletics Association. The six-day competition was held from 14–19 November at the Jawaharlal Nehru Stadium in New Delhi, India. It featured 40 events, 22 for men and 18 for women, with the steeplechase, pole vault, triple jump and hammer throw competitions being for men only. China comfortably topped the medal table, winning over half the events with 21 golds among a total of 42. The host nation, India, was clear runner-up with eight golds and 22 medals, while Japan was the only other nation to breach double figures. A total of 19 nations reached the medal table.
Xue Bai is a female Chinese long-distance runner who specializes in the 10,000 metres.
Matteo Galvan is an Italian athlete who specializes in the 200 and 400 metres. His career highlight so far is the 2009 European Indoor Championships, where he placed sixth in the 400 metres and won a gold medal in the relay.
Mark David Hylton is a former British 400 metres sprinter. Hylton won a silver medal in the relay at the 1996 Summer Olympics in Atlanta.
The 400 metres at the Summer Olympics has been contested since the first edition of the multi-sport event. The men's 400 m has been present on the Olympic athletics programme since 1896 but nearly seventy years passed before the introduction of the women's 400 m, which has been held continuously since the 1964 Games. It is the most prestigious 400 m race at elite level. The competition format typically has two qualifying rounds leading to a final race between eight athletes.
Ayomide Temilade Oluwatoyosi Folorunso is an Nigerian-Italian athlete specialising in the 400 metres hurdles. She competed in the 4 × 400 metres relay at the 2015 World Championships in Beijing.
Julien Watrin is a Belgian sprinter specialising in the 400 metres. In 2023, he won his first individual major senior medal, with silver at the European Indoor Championships. Watrin earned several major medals with national men's 4 × 400 m relays, including bronzes at the 2019 and 2022 World Athletics Championships.
Samuel Bai is a Papua New Guinean sprinter. He competed in the men's 4 × 400 metres relay at the 1996 Summer Olympics.
Jonathan Sacoor is a Belgian sprinter specialising in the 400 metres.
Lieke Klaver is a Dutch track and field athlete who competes in sprinting. She specializes in the 200 metres and in the 400 metres. In the 4 × 400 metres relay, she is the 2023 World Champion and the 2024 World Indoor Champion with the Dutch women's team and the 2024 Olympic Champion with the Dutch mixed team.
The West African Athletics Championships is an international athletics competition between West African nations, organised by the Confederation of African Athletics (CAA).
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