The Oakland starter battled miserable conditions to toss three very solid innings in which he allowed one run -- a homer to Seattle's Casper Wells in the second inning. He struck out four and walked none.
"Personally, I don't want to be the guy that's like 'Oh, I didn't think I was pitching because it's raining,' and then we go and lose a game we shouldn't lose," Griffin said.
Griffin made an adjustment on his curveball between his starts, bringing his arm over the top of his body more because he felt the pitch was too flat.
"When I started playing catch in the offseason, I probably wasn't getting back to the arm slot that I was [in the past]. It's an easy fix, just something that they brought to my attention, and it just happened to be the thing that helped the most."
To combat the wind conditions, Griffin and catcher John Jaso decided before the game they would pound hitters inside and keep the ball down in the zone more than usual.
It worked for Griffin, who allowed just one run, compared with the 12 runs and six homers surrendered by Mariners pitching in three innings.
"We had a gameplan going into that game -- staying hard in and not letting them get extended," Jaso said. "A.J. executed."
AJ Cassavell is a reporter for MLB.com Follow him on Twitter @ajcassavell. This story was not subject to the approval of Major League Baseball or its clubs.