Fastest relay 4 x 400 metres (mixed)
- Who
- Kaylyn Brown, Bryce Deadmon, Shamier Little, Vernon Norwood
- What
- 3:07.41 minute(s):second(s)
- Where
- France (Paris)
- When
- 03 August 2024
The fastest relay 4 x 400 metres (mixed) is 3 minutes 7.41 seconds, achieved by the USA (represented by Vernon Norwood, Shamier Little, Bryce Deadmon and Kaylyn Brown) at the 2024 Olympic Games in Paris, France, on 2 August 2024.
The USA smashed their own world record by more than a second in the heats of the mixed 4 x 400 m.