The men's 800 metres at the 2019 World Athletics Championships was held at the Khalifa International Stadium in Doha from 28 September to 1 October 2019.

Down the first home stretch the rest of the field back off the fast pace, but Brazier stuck right behind Vázquez through a 48.96 first lap.

Down the stretch, Brazier was straining, pumping his arms, but Tuka's famed kick was not making up any ground.

40 metres out, Rotich passed Vázquez, but from far off the pace, Bryce Hoppel was gaining fast.

[3] The event schedule, in local time (UTC+3), was as follows:[4] The first 3 in each heat ( Q ) and the next six fastest ( q ) qualified for the semifinals.