Chris Tillman gave up just three singles over eight innings and no earned runs tonight, but he took the 2-0 loss against Toronto.
One of his teammates said he could not have done much more to get a win.
"I told him after the game. That was one of the best I've ever seen Tillman throw. They've got some thump over there. He threw the ball tremendous," Adam Jones said.
Tillman falls to 1-1 and has given up just two earned runs over 21 1/3 innings for an ERA of 0.84 after three starts.
After an uplifting game where his three-run homer helped the Orioles win at New York, Jonathan Schoop's two errors in the fourth inning tonight helped lead to the game's only two runs.
"I wish I played better defense," Schoop said. "I overthrew Chris (Davis at first) and I wish I played better. I'll learn from it and keep working hard to get better.
"You have to learn from it. Go watch it and learn what you did wrong and wash it out and the next day be better."
Schoop said he did not believe that making his first error made him think about it too much, leading to the second error.
"I just threw it away. Chris pitched a great game and I have to be better tomorrow," he said.
Jones was asked what he said to Schoop after the game.
"It's mistakes. They weren't mental mistakes. Those can't happen. Physical mistakes happen," Jones said. "As soon as it happened, I told him, 'You've got an at-bat. Can't think about it. Mistakes happen, man.' I told him, 'Play the game.' It's not going to be his (last) error."
The Orioles were held to five hits by three Jays pitchers, but drove several balls to the warning track or the wall. They left the bases loaded in fifth inning.
Was the ball just not carrying tonight?
"It is what it is, man," Jones said. "A lot of guys hit balls right at guys. That is how it is with this game. There will be days when you bloop them in and they all find a home. But tonight, nothing. Crickets out there.
"Hey, we swung the bats. All nine guys really good at-bats the entire game. As you get deeper into their bullpen, it gets nastier and nastier. Tip the cap, they pitched a good game."
So did Tillman, although he did not talk like he had after his outing.
"It was a struggle early," he said. "I just couldn't get in a rhythm and was fighting myself to make the adjustments. Matt (Wieters) was sitting with me between innings. We were talking and able to figure it out, fortunately.
"Anytime you get through a game without your best stuff, that is what you look to do, make adjustments."
Tillman was not throwing any of his defenders under the bus either.
"It's baseball. I trust these guys day in and day out. Those kind of things happen," he said.
The Orioles fall to 1-3 in series-opening games. They lost a game in which they allowed three or fewer hits for the first time since June 7, 2009 against Oakland.