The men's 400 metres at the 2019 World Athletics Championships was held at the Khalifa International Stadium in Doha on 1, 2 and 4 October 2019. The winning margin was 0.67 seconds which as of 2024 is
The home straight.
The men's 400 metres at the 2022 World Athletics Championships was held at the Hayward Field in Eugene from 17 to 22 July 2022. The winning margin was 0.19 seconds.
Michael Norman shortly after the final.