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SAN DIEGO -- Clayton Richard came lumbering wide around third base and headed for home, scoring standing up.

"Just straight Michigan quarterback sprinting," manager Bud Black quipped after the San Diego Padres' memorable 3-2, 13-inning victory against the Los Angeles Angels on Sunday.

Two innings after Angels manager Mike Scioscia vacated left field against a right-handed batter in favor of a drawn-in, five-man infield, it was Black's turn to try something out of the ordinary in an attempt to win a game in which both teams ran out of position players and had to use a starting pitcher to pinch-hit.

He turned to Richard, a former backup quarterback at Michigan who is scheduled to start on Monday night at St. Louis. Richard, 0 for 16 this season, got a pinch-hit single to left with two outs in the 13th off David Pauley (0-1). Will Venable followed with a single to left-center, fill-in left fielder Howie Kendrick bobbled the ball for an error and Richard scored from first.

"It's definitely not something you anticipate going to the ballpark that day," said Richard, now 2 for 2 in his career as a pinch-hitter. "A pleasant surprise."

After he scored, Richard's momentum carried him through a pack of happy teammates who were on their way to mob Venable on the infield grass.

"It's a lot of fun to be part of it," Richard said. "I was just running as fast as I could; made sure I hit the bases. It was exciting. Our team played great baseball. It was a fun game."

By taking two of three from the Angels, the Padres had their first winning homestand of the season, going 3-2 against the Dodgers and Angels. It was just their third series win in 14 this season.

Rookie Miles Mikolas (1-1) pitched two perfect innings for his first big league win.

"That ball in the outfield, I just have to field that ball cleanly and get it back into the infield," Kendrick said. "It took a little hop, but at the same time, knowing who's running and knowing the situation, you have to keep that ball in front of you and try to catch it clean. I made a mistake and they ended up winning a game on it."

Black said he'd seen Richard launch balls in batting practice. "Clayton was due. ... And he's fast. The ball was hit in the right area. We caught a break with the bobble. Hoffy (third base coach Glenn Hoffman) was aggressive. It worked."

The Padres wasted pinch-hitter John Baker's leadoff double in the unusual 11th inning.

Baker doubled over the head of left fielder Ryan Langerhans, who hurt his right shoulder when he stumbled and fell into the wall. Langerhans' injury forced Scioscia to make five defensive changes, including moving Albert Pujols from first base to third and Kendrick from second base to left field.

Venable then sacrificed Baker to third, where he had some banter with Pujols.

"I told Albert he should play left field," Baker said. "He laughed at me and said he's playing third base."

With Cameron Maybin up, the Angels brought Kendrick back to second base in a drawn-in, five-man infield, leaving left field vacant. Maybin took a called third strike from rookie David Carpenter.

"Smart," Baker said. "You look at the odds when you think about who are the hitters and you've got a sinker baller on the mound. Scioscia knows what he's doing. You can never question anything that guy does or anything that Buddy does. They came from the same school of baseball."

Kendrick had to switch gloves three times in the inning: when he went from second to left, when he came into the five-man infield against Maybin and for the last out when he went back to left.

Chase Headley grounded to third to end the inning.

Angels pitcher Dan Haren, the losing starter Saturday night, struck out as a pinch-hitter opening the 10th.

"You find out what you are made of in these type of games," Kendrick said. "Both teams ended up resorting to using pitchers as pinch-hitters. That's what happens in these long games in interleague play. You have to use your whole roster and we tried just about everything today."

Headley popped up to short to end the ninth with Maybin on third. Maybin walked with two outs against Ernesto Frieri, who was traded from the Padres to the Angels on May 3, stole second and took third when catcher Bobby Wilson's throw sailed into center field.

The Angels loaded the bases against Brad Brach with one out in the 10th but failed to score. Mike Trout beat out an infield single for his third hit and Brach walked Albert Pujols and Mark Trumbo with one out. Howard Kendrick struck out and Peter Bourjos forced Trumbo at second to end the threat.

San Diego's Yonder Alonso doubled twice, walked twice and drove in two runs.

Angels starter Ervin Santana, trying to win his third straight start, took a 2-0 lead into the fifth before the Padres tied it, leaving him with a no-decision.

Trout scored both of the Angels' runs. He opened the game with a single to center, stole second and scored on Mark Trumbo's double to left. With one out in the fifth, Trout homered into the second deck in left, his fourth.

The Padres tied the game at 2 in the fifth on Alonso's double to the base of the wall in left-center. Santana opened the inning by hitting Venable with a pitch and allowing a single to right by Maybin before Alonso doubled.

Santana and Padres starter Anthony Bass each allowed two runs in six innings. Santana allowed six hits, struck out six and walked two. Bass allowed five hits, struck out six and walked three.

Game notes

Angels LF Vernon Wells injured his right thumb stealing second base in the second inning. He played in the bottom of the inning and then came out. Trout moved from center to left and Bourjous took over in center. ... The previous Angels pitcher to pinch-hit was Omar Olivares on June 10, 1998, at Arizona. He struck out. ... The Padres selected RHP Matt Palmer from Triple-A Tucson, optioned RHP Nick Vincent back to Tucson and transferred LHP Cory Luebke to the 60-day disabled list. Manager Bud Black said Luebke is strongly leaning toward having reconstructive surgery on his elbow. He was placed on the DL on May 2 with a strained elbow. ... Black said LF Carlos Quentin, on the DL since having knee surgery during spring training, and RHP Micah Owings, on the DL with a strained right forearm, are reporting to extended spring training in Peoria, Ariz., The Angels open a three-game series at Oakland on Monday night, when RHP Jerome Williams (4-1, 3.86) is scheduled to face LHP Tommy Moore (5-3, 4.09). ... The Padres open a three-game series at St. Louis on Monday night, when Richard (2-5, 4.94) is scheduled to face Jaime Garcia (3-2, 3.68) in a matchup of lefties.