SAN DIEGO -- The Padres didn't exactly need a record-breaking offensive explosion on Sunday afternoon. Not with the way Dinelson Lamet was toying with history on the other side of the ball.

For the second time in a week, Lamet flirted with the franchise’s first no-hitter. When Kole Calhoun ended that bid with an opposite-field blast in the seventh, the Padres were instead forced to settle for a 9-5 victory -- and a different feat they’d never accomplished.

In 52 seasons of playing baseball in San Diego, the Padres had never launched six home runs in a home game. They needed all of three innings to set that record on Sunday.

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“The ball seemed to be jumping,” said Padres manager Jayce Tingler. “It was a good combination for us today.”

By the end of the third inning, the Friars had built a 9-0 lead on the strength of home runs from Wil Myers, Fernando Tatis Jr., Ty France, Francisco Mejía and two from Manny Machado -- who is slumping no more. Those six home runs tied the Petco Park record set by the Giants in September 2013, and they fell one shy of the club record at any ballpark.

From there, the Padres’ offense hit cruise control, and Lamet went to work. He was virtually untouchable over 6 2/3 frames, allowing only two baserunners while striking out 11. It was quite the follow-up to a similarly brilliant outing against the Dodgers on Tuesday in which he carried a no-hitter into the sixth.

“I feel like I’m getting better,” Lamet said. “I’m getting stronger start by start.”

A scary proposition for the rest of the National League.

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“The one thing I like about Lamet the most is the bulldog in him,” added Tingler. “He’s no-nonsense, he’s all business and he’s coming at you.”

Indeed, Lamet has been one of the sport’s most dominant pitchers this season. On Sunday, he lowered his ERA to 1.61. Lamet is becoming a certifiable ace who probably doesn’t need much run support. But the Padres gave him plenty on Sunday.

On the whole, the game served as an encapsulation of why the Padres view themselves as legit contenders in 2020. In Lamet and Chris Paddack, they have a pair of starting pitchers who have begun to establish themselves as frontline weapons.

Their offense has a ridiculously high ceiling, too, as evidenced by the outburst Sunday. Even though the Padres entered the day ranked second in the Majors in runs scored, they hadn’t quite hit that ceiling, because their $300 million man was struggling.

“It’s just trusting the process,” said Machado. “Eventually, the baseball gods repay you.”

Sure enough, Machado opened the scoring in the bottom of the first when he turned around a 2-0 fastball from D-backs starter Madison Bumgarner. He launched it into a group of Padres relievers who had assembled in the shaded area of the stands next to the left-center-field bullpens. (Luis Perdomo got the souvenir.)

Myers’ blast made it 3-0 later in the frame, and the Padres tacked on two more home runs in the second -- back-to-back shots from their left-side duo, Tatis and Machado.

It was Tatis’ eighth homer of the season, moving him into a tie for the Major League lead, and his fifth in the last four games. Three pitches later, Machado followed with perhaps the most impressive home run of the afternoon -- a missile down the left-field line that Statcast tracked at 110 mph. It left the yard despite a launch angle of 18 degrees.

“I’m just trying to get the swing right,” Machado said. “At the end of the day, you can’t really control the results. The only thing you control is how you work, how you go about your business, how you approach the game. Sometimes you get lucky and have days like today with two home runs.”

Machado went on to explain that he was the first to get a hint that Sunday might be a special day for his starting pitcher. Before Saturday’s game, the typically stoic Lamet approached Machado with a message.

“Hold down the fort today,” Machado recalled being told. “Because tomorrow I’m coming with gas.”

Sure enough, Lamet brought the gas. The Padres’ offense brought some, too.