"Just because the way he was pitching, we thought (he) could go to an extra inning," manager Brad Ausmus said. "We consulted him just to make sure he felt OK. He said he did, so we kind of rolled with it."
Verlander's spring routine was postponed by his recovery from core-muscle repair surgery Jan. 9, and his first scheduled start was rained out Thursday.
"It was a really good sign to get out there on the mound and not worry about it, and worry about getting batters out and (the results) still be pretty good," he said. "I put in a lot of work after surgery to get to this point and be ready for the start of the season."
The 2011 MVP and Cy Young Award winner threw 52 pitches, giving up a first-inning single to Melky Cabrera and walking two in 3 2/3 innings. He had two strikeouts, using only his fastball and curveball.
"I'm not throwing sliders yet. I threw three in the bullpen, the first three I threw all year, and they were good," he said. "I just want to get down to my three main pitches first, and the slider has always been pretty easy for me to throw for strikes. It's pretty similar to throwing my fastball so it doesn't take a big adjustment for me to get that going."
Verlander expects to be ready for Opening Day, and Ausmus said he is only a few pitches behind the other starters at this point.
Redmond gave up five hits and two runs in four innings while striking out three.
Bradley Glenn led off the 10th inning with a home run off Melvin Mercedes to win it for the Blue Jays.