Dominguez struck out one in a perfect ninth inning to earn the save in Saturday's 3-2 win over the Astros.
Dominguez has been busy lately, securing three saves and losing two contests across five appearances over the past seven days. He locked up his fifth consecutive save chance for the Orioles on just eight pitches and owns a 2.77 ERA, 0.77 WHIP and 16:3 K:BB across 13 innings since joining them July 26.