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.
The mixed 4 × 400 metres relay event at the 2020 Summer Olympics took place on 30 and 31 July 2021 at the Japan National Stadium. There were 16 competing relay teams, with each team having four members. It was the first mixed-gender relay in athletics held at the Olympic Games, as part of a larger focus on gender equality by the International Olympic Committee.
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 and the 2024 Olympic Champion with the Dutch mixed team.
The women's 400 metres at the 2021 European Athletics Indoor Championships took place in three rounds at the Arena Toruń in Toruń, Poland, on 5 and 6 March 2021.
Sharlene Mawdsley is an Irish athlete who specialises in the 400 meters and other sprint events.
The women's 400 metres at the 2022 World Athletics Indoor Championships took place on 18 and 19 March 2022.
The women's 4 × 400 metres relay at the 2022 World Athletics Indoor Championships took place on 20 March 2022.
The women's 400 metres hurdles at the 2022 World Athletics Championships was held at the Hayward Field in Eugene, Oregon, United States, from 19 to 22 July 2022. It was won by Sydney McLaughlin in a world record time of 50.68 seconds. The winning margin was 1.59 seconds which as of 2024 stands as the greatest winning margin for the women's 400 metres hurdles at these championships.
The women's 400 metres at the 2022 European Athletics Championships took place in three rounds at the Olympiastadion in Munich, Germany, from 15 to 17 August 2022.
The women's 400 metres hurdles at the 2022 European Athletics Championships took place in three rounds at the Olympiastadion in Munich, Germany, from 17 to 19 August 2022.
The mixed 4 × 400 metres relay at the 2024 Summer Olympics was held in two rounds at the Stade de France in Paris, France, on 2 and 3 August 2024. This was the second time that the mixed 4 × 400 metres relay was contested at the Summer Olympics. A total of 16 teams qualified for the event through the 2024 World Athletics Relays or the World Athletics top list.
The women's 400 metres at the 2023 European Athletics Indoor Championships took place in three rounds at the Ataköy Athletics Arena in Istanbul, Turkey, on 3 and 4 March 2023. This was the 37th time the women's 400 metres was contested at the European Athletics Indoor Championships. Athletes could qualify by achieving the entry standard or by their World Athletics Ranking for the event.
The women's 4 × 400 metres relay at the 2023 European Athletics Indoor Championships took place in one round in the Ataköy Athletics Arena in Istanbul, Turkey, on 5 March 2023. This was the twelfth time the women's 4 × 400 metres relay was contested at the European Athletics Indoor Championships. Six national teams qualified based on their outdoor results from 2022 or the team's cumulative individual 400 metres indoor results from 2023.
The women's 400 metres hurdles at the 2023 World Athletics Championships took place in three rounds at the National Athletics Centre in Budapest, Hungary, from 21 to 24 August 2023. Athletes could qualify by archieving the entry standard.
The mixed 4 × 400 metres relay at the 2023 World Athletics Championships was held at the National Athletics Centre in Budapest on 19 August 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.
The women's 4 × 400 metres relay at the 2024 World Athletics Indoor Championships took place in two rounds at the Commonwealth Arena in Glasgow, United Kingdom, on 3 March 2024. This was the seventeenth time the women's 4 × 400 metres relay was contested at the World Athletics Indoor Championships. There was no entry standard for the qualification. Nine national teams competed in the event.
The women's 400 metres hurdles at the 2024 European Athletics Championships took place in three rounds at the Stadio Olimpico in Rome, Italy, from 9 to 11 June 2024. This was the sixteenth time that the women's 400 metres hurdles was contested at the European Athletics Championships. A total of 37 athletes qualified for the event by entry standard, ranking, or wild card. The startlists contained 35 athletes from 21 nations.
The women's 4 × 400 metres relay at the 2024 European Athletics Championships took place in two rounds at the Stadio Olimpico in Rome, Italy, on 11 and 12 June 2024. It was the eighteenth time the women's 4 × 400 metres relay was contested at the European Athletics Championships. Relay teams of sixteen nations competed.
