I assume not, but I'm too young to remember many past national championships. Even Colin considered himself a miler at heart, with ventures into the 3200 and 800. Aaron consideres himself an 800 runner through-and-through.
The range Aaron Sahlman has shown already is crazy impressive. He might come out of highschool even more legendary than his brother, who people were wondering at this point last year if he would come out even more legendary than Nico.
After his combined performances in the 800, mile, and 3k last year, and now his NXN win in a course record this year I honestly think he could get whatever distance record he chooses to train for. Is he the most talanted recruit ever? Sorry for the dickriding.