Drew Waters capped a two-out rally with a two-run double that sent Kansas City to a 6-4 victory over the Guardians.
A no-decision for Royals starter Brady Singer, who continued his late-season slump. He allowed four runs on eight hits and two walks over six innings, and the right-hander has not won since Aug. 8 in Boston.
The Royals had yet to announce a starting pitcher for Tuesday, 6:40 at Kauffman Stadium.