Chen issued two walks and said his slider ran high, which caused him to fall behind certain batters, although the defense behind him didn't help much. The Orioles committed two errors in the first two innings -- leading to an unearned run in the first -- and Chen was charged with two runs total in the 54-pitch outing.
"I'm definitely on my schedule right now," said Chen, who went 12-11 with a 4.02 ERA in his rookie season in 2012. "Spring Training is about adjustments, so I'm still working on that. There are a lot of things I need to adjust."
And the 27-year-old should have plenty of time to do it before the Orioles break camp next month.
"Definitely, I feel it's going to be a good year for me," Chen said.
Brittany Ghiroli is a reporter for MLB.com. Read her blog, Britt's Bird Watch, and follow her on Twitter @britt_ghiroli. This story was not subject to the approval of Major League Baseball or its clubs.