Hellickson (12-10) hurled his second career complete game, handcuffing the O's on one run on four hits. The rookie right- hander struck out one batter and induced 16 groundouts.
Baltimore's Jeremy Guthrie (6-17) was lit up for seven runs (only three earned) on seven hits over five innings, striking out five and walking four.
The O's lost for the sixth time in eighth games despite a solo homer from Adam Jones.
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