I'm not an expert, but I did stay at a Holiday Inn Express last month.
Going into the weekend, UND trailed a number of teams narrowly - and I mean narrowly - so that 3 "high impact" wins against TUC's raised UND's "TUC" comparison factor plus raised UND's RPI by enough to change 7-8 comparisons. It also helped that 2 wins were against "head to head" vs teams we had trailed (DU and MN), helping to flip those comparisons.
I leave the real explanation to the experts.