Dominguez fired a perfect ninth inning with two strikeouts to record the save in Sunday's 3-1 win over the Braves.
Dominguez finished the season with saves on back-to-back days and he allowed only one hit over his last six appearances. The 23-year-old ended the season with a 2.95 ERA, 0.93 WHIP, and 74:22 K:BB over 58 innings while converting 16 of 20 save opportunities.