Barreda (1-0) struck out one in a perfect inning to earn the win Wednesday over Kansas City.
The 32-year-old pitched the top of the eighth inning with Baltimore trailing 5-0, and he was able to maintain the five-run deficit. The offense rallied for nine runs in its half of the inning, and that made Barreda a winner in his major-league debut. The right-hander projects for a low-leverage role as long as he's with the big club.