Mixed 4 × 400 metres relay
| Athletics Mixed 4 × 400 metres relay | |
|---|---|
| World records | |
| Mixed | United States (Vernon Norwood (M), Shamier Little (F), Bryce Deadmon (M), Kaylyn Brown (F)) 3:07.41 (2024) |
| Olympic records | |
| Mixed | United States (Vernon Norwood (M), Shamier Little (F), Bryce Deadmon (M), Kaylyn Brown (F)) 3:07.41 (2024) |
| World Championship records | |
| Mixed | United States (Justin Robinson (M), Rosey Effiong (F), Matthew Boling (M), Alexis Holmes (F)) 3:08.80 (2023) |
The mixed 4 × 400 metres relay is a mixed-sex 4 × 400 metres relay in which teams field two men and two women. Initially, teams were free to arrange participants in any order. This created scenarios where mixed genders run on the same leg. This was changed in March 2022, where team members 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.