Brandon Miller just ran a 600 in 1:14.03 600, beating Isaiah Harris by over a second.
Miller's time is the second fastest indoor 600 ever behind Donavan Brazier's 1:13.77. And it's less than a second behind David Rudisha's fastest ever outdoor 600 (1:13.10)
I bet that Brandon Miller and Athing Mu will run faster apart than they did as a couple. I think focusing on track this year instead of the LA party and modelling scene will end up doing them both a lot of good.