The Newark High School product came in relief of Wei-Yin Chen and pitched a scoreless 5th inning in his major league debut.
Clark ran into trouble in the 6th however, surrendering a 2-run double to Kendrys Morales and a sacrifice fly to Jason Bay. His final line was 1 2/3 innings pitched with 3 hits and runs allowed, he walked two while striking out one.
His early entrance in the game was necessitated by an uncharacteristically rough outing by Chen, who gave up five runs on eight hits in just 4 innings of work. Four of the five runs were allowed with two outs in an inning.
Manny Machado hit his 3rd home run of the season for the Orioles, who also picked up RBI hits from Adam Jones and Nick Markakis.
The loss snapped the Orioles' 4-series winning streak.
Clark became the 4th graduate of Newark High School to pitch in the majors. Earlier this season, William Penn's Brett Oberholtzer became the 22nd Delaware high school graduate to make "The Show" when he pitched two innings with Houston in a game on April 21.
Baltimore travels to Anaheim to face the Los Angeles Angels in a four-game set which will conclude an 11-day, 11-game west coast road swing.
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