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.
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.
Dylan Borlée is a Belgian sprinter who competes in the 400 metres. He is a member of the Borlée family.
Shericka Jackson is a Jamaican sprinter competing in the 60 m, 100 m, 200 m, and 400 metres. In the 100 m, she’s the fifth fastest woman of all time, while in the 200 m, she’s the second fastest woman in history.
Kendall Ellis is an American sprinter. Ellis won gold in the 4x400 m relay and bronze in the Mixed 4x400 metres at the Tokyo Olympics. She competed in the 400 meters at the 2017 and 2019 World Championships, winning gold medals as a part of prelim 4×400 m relays. As a junior, Ellis took gold in the 4×400 m relay and bronze in the 400 meters at the 2015 Pan American Junior Championships.
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. She also won the bronze medal at the 2024 Summer Olympics. 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.
Jonathan Sacoor is a Belgian sprinter specialising in the 400 metres.
Camille Laus is a Belgian athlete sprinter. She ran in the national team which placed 5th in the 4 × 400 m relay at the 2019 World Championships, setting Belgian record of 3:26.58 sec in the heats.
The mixed 4 × 400 metres relay is a mixed-sex 4 × 400 metres relay in which teams field two men and two women. Since March 2022, team members have to run in the order man-woman-man-woman. It was introduced at the 2017 IAAF World Relays and was then held at the 2019 World Athletics Championships in Qatar.
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 and the 2024 Olympic Champion with the Dutch mixed 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. She won a gold medal at the 2024 Summer Olympics in the mixed 4 x 400 metres relay.
Alice Mangione is an Italian sprinter, specialising in the 400 metres. She competed at the 2020 Summer Olympics, in the 4 × 400 m relay and 4 × 400 m mixed relay.
Alexander Doom is a Belgian sprinter specializing in the 400 metres. In 2024, he became the first male athlete to win the individual 400 metres and 4×400 metres relay at the same World Athletics Indoor Championships He has won several medals in international competitions with the Belgian 4 × 400 metres relay team and holds a personal best of 44.15 over the 400 metres.
Nicole Yeargin is a British-American athlete representing Great Britain who specialises in the 400 metres. She won major medals as part of British women's and mixed 4 x 400 m relays, including bronzes at the 2022 World Athletics Championships and 2023 World Athletics Championships. She won two bronze medals at the 2024 Summer Olympics as part of both the British mixed and women's 4 x 400 metres relay teams.
Naomi Van den Broeck is a Belgian sprinter. She represented Belgium at the 2020 Summer Olympics in Tokyo 2021, competing in women's 4 × 400 metres relay.
Helena Ponette is a Belgian sprinter specialising in the 400 metres.
Delphine Nkansa is a Belgian athlete. She was the Belgian national champion over 200m in 2022 and the European Under-23 champion over that same distance in 2023.
Cathelijn Peeters is a Dutch track and field athlete who competes in hurdling and sprinting and previously competed in the combined events and hammer throw. Peeters specializes in the 400 metres hurdles 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.
Manon Depuydt is a Belgian sprinter. She is a three-time national champion outdoors and two-time indoor champion.
Christian Iguacel is a Belgian sprinter specialising in the 400 metres.
