Brandon Gomes (3-1) was credited with the win after emergency starter Enny Romero -- making his major-league debut -- gave up a hit and four walks over 4 2/3 innings.
Romero was called into service after scheduled starter Jeremy Hellickson was scratched due to pitching in Friday's 18-inning win over Baltimore.
O's starter Scott Feldman (5-5) was tagged for three runs on six hits in 6 1/3 innings.
Matt Wieters got Baltimore's only RBI.
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