depends on how fun you want to be with it. I’d probably say 90 minutes. When Keaton Ellis’s 5.09 single got beaten by Lucas Etter with a 4.90 back in 2016.
But there’s been a few times when the wr has been broken back to back in a round (and maybe a few times in a round for single, but I can’t think of any examples of that) Like Max’s 5.37 to 5.36 back to back, a bunch of old Feliks records, that kind of stuff.