The women's 4×400 metres relay at the 2004 Summer Olympics as part of the athletics program was held at the Athens Olympic Stadium from August 27 to 28. The sixteen teams competed in a two-heat qualifying round in which the first three teams from each heat, together with the next two fastest teams, were given a place in the final race.
Alvin Leonardo Harrison is an American former track and field athlete who competed in sprinting events. He won a gold medal in the 4 x 400 metres relay at both the 1996 and 2000 Summer Olympics and a silver medal in the 400 metres at the 2000 Summer Olympics.
The 4 × 100 metres relay or sprint relay is an athletics track event run in lanes over one lap of the track with four runners completing 100 metres each. The first runners must begin in the same stagger as for the individual 400 m race. A relay baton is carried by each runner. Prior to 2018, the baton had to be passed within a 20 m changeover box, preceded by a 10-metre acceleration zone. With a rule change effective November 1, 2017 that zone was modified to include the acceleration zone as part of the passing zone, making the entire zone 30 metres in length. The outgoing runner cannot touch the baton until it has entered the zone, the incoming runner cannot touch the baton after it has left the zone. The zone is usually marked in yellow, frequently using lines, triangles or chevrons. While the rule book specifies the exact positioning of the marks, the colors and style are only "recommended". While most legacy tracks will still have the older markings, the rule change still uses existing marks. Not all governing body jurisdictions have adopted the rule change.
The men's 4 x 400 metres relay at the 2009 World Championships in Athletics was held at the Olympic Stadium on August 22 and August 23.
The men's 60 metres hurdles competition at the 2010 IAAF World Indoor Championships was held at the ASPIRE Dome on 12 and 14 March.
Ricardo Chambers is a Jamaican track and field athlete who specialises in the 400 metres.
The men's 4 × 400 metres relay competition at the 2012 Summer Olympics in London, United Kingdom. The event was held at the Olympic Stadium on 9–10 August. It was won by the Bahamas.
The Women's 4 × 100 metres relay event at the 2011 World Championships in Athletics was held at the Daegu Stadium on 4 September.
Luguelín Miguel Santos Aquino is a Dominican sprinter, who specialises in the 400 m. He was the silver medallist in the event at the 2012 London Olympics at the age of eighteen. His personal best is 44.11 seconds.
The 2014 IAAF World Relays were held in May 2014 in Nassau, Bahamas. The event was the first edition of the IAAF World Relays. There were five events for each gender. In men's and women's 4 x 100 metres and 4 x 400 metres, the event served as a qualification event for the 2015 World Championships in Athletics.
The men's 4 × 100 metres relay competition at the 2016 Summer Olympics in Rio de Janeiro, Brazil was held at the Estádio Olímpico Nilton Santos on 18–19 August.
The men's 4 × 400 metres relay competition at the 2016 Summer Olympics in Rio de Janeiro, Brazil was held at the Estádio Olímpico João Havelange on 19–20 August.
The 2015 IAAF World Relays was the second edition of the biennial, global track and field relay competition between nations. As in the previous year, it was held in May in Nassau, Bahamas. Apart from contesting for the Golden Baton for the best team overall, the competition also served as a qualifying stage for the 2016 Summer Olympics in the 4 × 100 and 4 × 400 metres relay. One major change compared to the inaugural edition was the replacement of the 4 × 1500 metres relay with the distance medley relay.
The men's 4 × 200 metres relay at the 2015 IAAF World Relays was held at the Thomas Robinson Stadium on 3 May.
The men's 4 × 100 metres relay at the 2015 World Championships in Athletics was held at the Beijing National Stadium on 29 August.
The men's 4 × 400 metres relay at the 2015 World Championships in Athletics was held at the Beijing National Stadium on 29 and 30 August.
The men's 4 × 400 metres relay at the 2016 IAAF World Indoor Championships took place on March 19 and 20, 2016.
The men's 4 x 100 metres relay at the 2017 World Championships in Athletics was held at the United kingdom,London Olympic Stadium on 12 August.
The Mixed 4 × 400 metres relay at the 2019 World Athletics Championships was held at the Khalifa International Stadium in Doha from 28 to 29 September 2019.
The women's 4 × 100 metres relay at the 2019 World Athletics Championships was held at the Khalifa International Stadium in Doha, Qatar, from 4 to 5 October 2019.
