Michael Mooney ran the fastest 1,600 in Colorado this year at 4:11.99.
Where does Colorado stand nationally? Well, currently the fastest 1,600 run has been Dustin Horter's 4:03.4, and the second fastest time run has been 4:06.09. Only two have run under 4:07, and four have run under 4:08 so far. For the full mile, however, Brodey Hastey has run 4:04.53.
So, if we put the altitude conversion into place, Colorado could potentially have four of the top seven milers in the country this year. By comparison, there's no other state with those sort of numbers in the event.
Long story short: We've witnessed history this year in the 1,600.