Duffey (1-0) pitched a perfect inning and earned the win over the Angels on Friday.
The Royals saved their offense for the ninth inning in a 2-1 win, and Duffey ended up benefiting after he prevented the Halos from adding to their lead in the eighth. He's kept runs off the board in four of his six major-league appearances this season. The right-hander has a 4.05 ERA, 1.50 WHIP and 8:5 K:BB over 6.2 innings while adding one hold, though he's primarily served as a low-leverage option.