Catcher John Buck, who entered the game in the ninth inning, produced a two-out RBI single to right in the 11th as Kansas City topped the Orioles 4-3 in 11 frames.
Mark Teahen led off the 11th with a single vs. Danys Baez and stole second. He scored on Buck's liner to right for the go-ahead run.
Billy Butler, who had five hits last night, gave the Royals a 2-0 lead in the top of the first with a two-run shot to left. Adam Jones' two-run shot in the last of the inning tied it up.
It's Jones' 16th homer and fourth in the last 11 games.
Matt Wieters RBI single in the last of the 6th put the Orioles ahead and Jason Berken in line for his second win. But, Willie Bloomquist led off the top of the 8th with a homer off Jim Johnson for a 3-3 tie.
Johnson has allowed three homers over his last nine outings.
Berken had a strong outing in a no decision. He gave up just two runs and six hits over six innings. It was his second quality start of the year.
Wieters had a career-high four hits for the O's, who have lost have lost seven of eight and nine of the last 11 games and fall to 2-4 on the year vs. KC.