KANSAS CITY, Mo. (AP) — Billy Butler drove in the go-ahead run in the sixth inning, and the Royals’ bullpen shut down the Baltimore Orioles the rest of the way for a 2-1 victory Tuesday night that gave Kansas City a commanding 3-0 lead in the AL Championship Series.

Third baseman Mike Moustakas made two marvelous plays as the Royals won their 10th straight postseason game, including all seven this year.

Kansas City will send Jason Vargas to the mound for Game 4 on Wednesday needing just one more win to reach their first World Series since 1985. Miguel Gonzalez will try to help the Orioles stave off elimination.

The game was tied 1-all until the Orioles’ Wei-Yin Chen put runners on the corners in the sixth. Butler followed with his sacrifice fly off reliever Kevin Gausman for the lead.

Winning pitcher Jason Frasor, Kelvin Herrera, Wade Davis and Greg Holland each pitched a scoreless inning.