Kyle Isbel had three RBIs and Salvador Perez drove in a pair of runs, lifting the host Kansas City Royals to a 7-4 victory over the Colorado Rockies in the first game of a doubleheader on Thursday afternoon.Drew Waters had two hits and an RBI and Michael Massey also drove in a run for the Royals, who won their third straight game.Kansas City starter Cole Ragans pitched just three innings, allowing four runs on three hits while striking out four and walking two. Relievers Angel Zerpa (1-0) and Steven Cruz each threw two scoreless innings and Carlos Estevez worked a perfect ninth to earn his sixth save.German Marquez (0-4) surrendered six runs on eight hits over four innings, issuing three strikeouts and three walks.Hunter Goodman had a homer and three RBIs for the Rockies, who lost for the 10th time in their last 11 games.Jordan Beck also went deep among his two hits.Colorado began the game’s scoring in the first inning, as Goodman’s RBI single scored Brenton Doyle – who led off with a walk.Kansas City quickly answered in the home half of the first inning. Maikel Garcia doubled and Bobby Witt Jr. was hit by a slider before Perez drove in both runners with a one-out double.Beck launched a 419-foot solo homer in the second inning to forge a 2-2 tie.