SAN DIEGO - With the exception of his daughter Allyson's birth on Thursday, Saturday was the biggest day for Nick Hundley.
"The best moment of my career by far. Easily," Hundley said.
Hundley returned with a bang from a two-day stint on paternity leave and homered with the go-ahead runs as the San Diego Padres snapped a three-game skid with an 8-2 romp over the New York Mets before 36,974 fans at Petco Park on Saturday night.
"I couldn't stop smiling," said Hundley, whose 10th home run is a career best. "I thought about my daughter and got a little emotional on the bench. It was pretty fun."
Jedd Gyorko also homered -- he drilled a three-run shot in the eighth for the final runs -- for the Padres (55-68), who had dropped eight of their last 10 games before Saturday's win. They had lost four of five to the Mets (56-65).
Will Venable tied a career high with four hits. He also scored three runs and stole a base.
The Padres outhit the Mets 15-7.
"We woke up a little bit," Padres manager Bud Black said of his team's offense, which had been limited to three runs or less in 11 of its 12 previous outings. "Will from the top order had a nice game. It was good to see a couple of guys get a bunch of hits."
Venable has hit as well as any Padre this season, extending his career-high hitting streak to 14 games.
"This has been a good second half for Will. There is no doubt about it," Black said. "The average is climbing. He was down in the low 200s, but now he's getting close to .270. Historically, his second halves have been pretty good. I think overall this year, and even last year, the peaks and valleys are smoothing out. He's playing very well."
Edinson Volquez allowed two runs on seven hits with five strikeouts and two walks in five innings. Volquez (9-10) beat the Mets for the first time in seven career starts. He also ended his two-game losing streak.
"Big time, because I never win against the New York Mets," Volquez said of the importance of the victory. "I'm really happy right now."
Dale Thayer, Nick Vincent, Luke Gregerson and Huston Street each pitched an inning of scoreless relief for San Diego.
Mets starter Jenrry Mejia walked off the mound after throwing two pitches in the fourth inning. Mejia experienced discomfort in his right elbow was the official line from club officials. His official pitching line: one run on four hits with five strikeouts and a walk in three-plus innings.
Collins said Mejia, who will be re-evaluated in the next couple of days, has been pitching with a bone spur in his elbow, which the Mets had already determined would need off-season surgery.
"We knew that there was a time when it might come back," Collins said.
Mejia was relieved by David Aardsma (2-2). That didn't go well.
The Padres immediately took advantage of Mejia's departure, scoring three runs in the fourth off Aardsma. Hundley drove a 3-2 pitch into the seats in left off the reliever for a two-run home and a 3-1 Padres' lead with two outs in the inning. Alexi Amarista's single to center scored Venable to give the Padres a three-run cushion.
Ike Davis' RBI single drove in Eric Young, Jr. with two outs in the fifth to slice the lead in half.
In the bottom of the inning, Jesus Guzman delivered a base hit to left, scoring Logan Forsythe for a 5-2 advantage.
The Padres scored first. Chris Denorfia had an RBI single to right, bringing home Venable, with two outs in the first for a 1-0 lead.
The Mets tied it in the third when Daniel Murphy drove in Young with a single to right.
NOTES: Mets C Travis d'Arnaud was promoted from Triple-A Las Vegas and made his major league debut on Saturday. D'Arnaud replaces John Buck, who went on paternity leave Friday. D'Arnaud, the centerpiece of the Mets' trade of R.A. Dickey to Toronto during the off-season, also is scheduled to start Sunday, when he will catch All-Star RHP Matt Harvey against the Padres. ... Mets 3B Wilmer Flores started for the first time since Monday, when he twisted his right ankle in a loss to the Dodgers. Flores went 1-for-4 with a double. ... Padres 3B Chase Headley, who was hitting .195 with no RBIs in his last 10 games, got the day off. Logan Forsythe started at third.