Marquez was promoted to Triple-A Albuquerque on Sunday, MLB.com's Ben Weinrib reports.
Marquez has risen up prospect lists with his performance at Double-A Hartford this season, where he's accrued a 2.85 ERA and 126:33 K:BB ratio over 135.2 innings. Should he eventually reach the majors, Marquez's fantasy impact would likely be inhibited by having Coors Field as a home park, but at just 21 years old, he's nonetheless cemented himself as one of the top pitchers in the farm system.