Following the national championships, Mroz was assigned to the 2009 Four Continents Championships and the 2009 World Championships. At Four Continents, Mroz placed 5th in the short program after landing a triple Axel, a triple flip, and a triple Lutz-triple toe loopcombination.
Following the national championships, Mroz was assigned to participate in the 2009 Four Continents Championships and the 2009 World Championships. At Four Continents, Mroz placed fifth in the short program after performing a triple Axel, a triple flip, and a triple Lutz-triple toe loop combination.