Ross Wolf gave up back-to-back singles with one out in the bottom of the ninth inning, but Gil Velaquez grounded into a 5-4-3 double play to end the game and give the Orioles their second straight victory, 8-4, over the Boston Red Sox.
Chris Tillman evaluated his performance, which included a rare relief appearance.
"It was a little different coming out of the bullpen. I didn't get to go through my routine. Actually, a lot different," he said.
"I felt good. I felt like I got better on the negatives from last time. I worked on the things I needed to work on. I threw probably too many pitches today, but I thought I was right around the zone the whole time. I threw a couple effective pitches off the plate and made them take some bad swings later in the count. I thought that it was OK. Not great, but I thought I did some positive stuff out there.
"I was throwing inside, and I feel like me throwing in early in the count makes them take some bad swings later in the count. I thought I threw some effective pitches in, and that's what I struggled with last year a little bit. That's one of the positive things I gained today."
Tillman wanted to go four innings, but he came out after 2 2/3.
"I had a plan and I was working on it," he said. "This is a team that we're going to see a lot during the season, so you're not necessarily trying to go out and show them everything you've got. I wanted to work in and out with my fastball and beat them with that. Being a young guy, I don't really know how to go about that quite a bit yet."