On May 17, 2014 — Danny Duffy pitches the best game of his career, taking a perfect game into the 7th inning before Adam Jones singles with two outs. His solid outing is necessary to make a 1st-inning Royals run stand up for a 1 – 0 win. Duffy is taken out of the game after allowing a lead-off single in the 8th, and the Orioles manage to load the bases in the 9th against Greg Holland before Nelson Cruz strikes out to end the game.
Source:
Baseball Reference May 17