Hamels gave up five runs and seven hits while pitching into the fourth inning of the Philadelphia Phillies' 10-2 loss to the Toronto Blue Jays.
"I was very happy with what I was able to do today," Hamels said after being pulled in only 3 1-3 innings.
Jose Bautista and Yan Gomes each drove in three runs and Brett Cecil allowed one run on four hits over four innings, striking out two for Toronto, which had 15 hits.
"It's all about fine-tuning now, to be able to throw all of your pitches where you want to," Hamels said. "It's nice to know you can go out there and be free and easy and build up the arm strength that you have to have. I feel I'm getting there."
Hamels' performance didn't faze manager Charlie Manuel, either.
"He was all right. He was OK," Manuel said. He was working on his change and his cutters. He's fine. As long as I see something coming out and he's throwing strikes and things like that. If I think he's consistent enough it doesn't bother me.
"I've seen guys in spring training really get hit and then the season starts and they'll be OK," Manuel said. "His arm's sound. He'll be ready."
The Phillies gave Hamels a 1-0 lead in the first on Shane Victorino's triple to right-centre off Cecil and Hunter Pence's sharp hit through the hole at shortstop. They didn't score again until the ninth when Luis Montanez doubled to right-centre and Michael Martinez singled.
Cecil is 3-0 this spring with a 0.90 ERA. He has allowed six hits in 10 innings. Toronto gave him the lead in the third when Gomes hit the first of his two doubles and Yunel Escobar singled him home.
The Blue Jays chased Hamels with three runs in the fourth. Ben Francisco and Rajai Davis singled, Mike McCoy dropped an RBI bunt single to first base and stole second, and Gomes hit a two-run single.
Phillies reliever Jose Contreras only got one out in the Blue Jays' five-run sixth. Davis singled, Gomes and Escobar hit run-scoring doubles, Brian Bocock singled for another run, David Herndon replaced Contreras and Bautista homered over the left field wall.
"It was a first-pitch fastball," Herndon said. "He ambushed me."
Toronto manager John Farrell was pleased to see the way his Blue Jays produced some of their runs.
"Even setting aside the number of quality at-bats, it was good to see us also manufacture some runs," Farrell said. "A hit and run by Rajai Davis, a safety squeeze by Mike McCoy. Some of the things that we haven't really called upon too much this spring. It was good to see opportunities present themselves to execute in that way."
NOTES: Toronto third baseman Brett Lawrie was "held out of any work (Sunday), no BP or anything like that" as he recovers from a left groin strain he experienced Friday, manager John Farrell said. Lawrie is undergoing treatment and "there's improvement being made. ... There's no target date yet (for his return) but we don't think this should be an extended issue, either." ... The Blue Jays returned pitchers Jerry Gil and Deck McGuire and catcher A.J. Jimenez to minor league camp and optioned catcher Travis D'Arnaud and first baseman Mike McDade to minor league camp. ... The Phillies will start Scott Elarton against Max Scherzer and the visiting Tigers on Monday at Clearwater. ... Toronto is off Monday and will start Dustin McGowan on Tuesday against Daniel Bard and the host Red Sox at Fort Myers.