For most US public universities, residency of undergraduates is determined by the residency of the parents unless the student is older (>24), in the military or a veteran, married, orphaned, or some other special circumstances. There are exceptions (Utah, Montana come to mind) but for the most part, simply moving to a state does not usually grant you residency for tuition purposes even after you live there for a year. It was a strategy that used to work, but most states have really clamped down on that option. OTOH, Colorado does give in-state tuition to athletes at the Olympic Training Center, so it is possible that some other universities have an arrangement like that.