In the first inning, with one out and Todd Frazier on first base, Joey Votto drilled a pitch into the gap in right-center field that Maybin made a shoestring sliding catch on. Maybin got up and threw the ball to first base to double up Frazier to end the inning.
"We usually play Votto in left-center. I was able to get a good jump and had a long ways to go," Maybin said. "Luckily, I caught him [Frazier] out of the corner of my eye going to second base."
That catch got rookie pitcher Jesse Hahn started on a good note, as he struck out nine over five scoreless innings.
"That's a huge play in the game for Jesse because it killed the momentum," Maybin said. "That's a big part of my game ... saving runs."
In the eighth inning, with reliever Joaquin Benoit on the mound, pinch-hitter Skip Schumaker drove a pitch to straightaway center field that Maybin hauled in on the run right before reaching the fence.
If Maybin doesn't get to either ball, the outcome Monday might have been far different.
"You never know how a defensive play will change a game," said Padres manager Bud Black. "But you know when it happens to you, it's a backbreaker. But when you make it, you breathe a sigh of relief."
Corey Brock is a reporter for MLB.com. Keep track of @FollowThePadres on Twitter. This story was not subject to the approval of Major League Baseball or its clubs.