In his last six appearances, Holland has given up 12 runs in five innings, which have included three blown saves and two losses.
Charlie Blackmon had three hits, including his career-high 30th home run, for the Rockies. Blackmon became the first National League leadoff man to hit 30 or more home runs since Hanley Ramirez hit 32 for the Marlins in 2008. Blackmon hit 29 last season.
The Rockies remained a half-game behind Arizona for the top National League Wild Card spot. The Royals moved within five games of the American League Central-leading Indians.