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. It is traditionally the final event of a track meet. At top class events, 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.
Nataliya Pyhyda is a Ukrainian track and field sprinter who specializes in the 200 and 400 metres. Her personal best times are 22.82 seconds (2008) and 50.62 seconds (2015), respectively.
Iga Baumgart-Witan is a Polish sprinter specialising in the 400 metres. She won several medals at major championships as part of Polish 4 × 400 metres relays, including a gold in the mixed relay and a silver in the women's relay at the 2020 Tokyo Olympics.
Justyna Święty-Ersetic is a Polish sprinter specialising in the 400 metres. She was the 2018 European champion and a two-time European Indoor Championship medallist in this event. Święty-Ersetic won many medals at major championships as part of Polish 4 × 400 m relays, including a gold in the mixed relay and a silver in the women's relay at the 2020 Tokyo Olympics.
Lisanne de Witte is a Dutch track and field athlete who competes in sprinting. She specialises in the 400 metres, where she held the Dutch record with her personal best time of 50.77 seconds from 2018 to 2021.
Aliyah Abrams is a Guyanese sprinter specialising in the 400 metres. She placed fifth in the women's 400m at the 2022 World Indoor Championships in Belgrade.
Natalia Kaczmarek is a Polish sprinter who specialises in the 400 metres. She is the 2024 European champion as well as the European silver medalist from 2022. Kaczmarek earned several global medals as part of 4 x 400 m relays, including gold in the mixed event and silver in the women's event at the 2020 Tokyo Olympics.
Rhasidat Adeleke is an Irish sprinter.
Imke Vervaet is a Belgian athlete. She competed at the 2020 Summer Olympics, in 200 m.
Femke Bol is a Dutch track and field athlete who competes in hurdling and sprinting. She specialises in the 400 metres hurdles, where she is the 2023 World Champion, and in the 400 metres, where she is the 2024 World Indoor Champion and the short track world record holder. In the 4 × 400 metres relay, she is the 2023 World Champion and the 2024 World Indoor Champion with the Dutch women's team.
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.
Rebecca Borga is an Italian sprinter, specialized in the 400 metres. She competed at the 2020 Summer Olympics, in 4 × 400 m relay.
Alice Mangione is an Italian sprinter, specialising in the 400 metres. She competed at the 2020 Summer Olympics, in 4 × 400 m relay and 4 × 400 m mixed relay.
Sharlene Mawdsley is an Irish athlete who specialises in the 400 meters and other sprint events.
Nicole Yeargin is a Scottish-American athlete representing Great Britain who specialises in the 400 metres. She won three major medals as part of British women's 4 x 400 m relays, including bronze at the 2022 World Athletics Championships and 2023 World Athletics Championships.
Revée Walcott-Nolan is a British athlete, known for being the 1500m British Champion in 2021, and competing for Britain in the 2020 Tokyo Olympics.
Zakithi Nene is a South African sprinter, who specializes in the 400 metres.
Alexis Holmes is an American track and field athlete who competes over 400 metres.
Róisín Harrison is an Irish track and field athlete.
Lauren Cadden is an Irish sprinter.
