Reliever Armando Gabino and first baseman Rhyne Hughes cleared waivers and were outrighted to Triple-A Norfolk.
Gabino appeared in five games for the Orioles, allowing seven earned runs in 4 2/3 innings. He went 7-0 with a 2.37 ERA and two saves at Norfolk.
Hughes hit .213 with four RBIs in 14 games with the Orioles, and .258 with 10 homers and 39 RBIs in 104 games with the Tides.
The Orioles have 32 players on their 40-man roster as they attempt to make room for players who must be protected in the Rule 5 draft.