SAN FRANCISCO -- Six months after spurning the Giants and signing a lucrative contract with the Phillies, Bryce Harper arrived at Oracle Park to a frosty reception.

Fans who once daydreamed of having Harper’s mighty bat in the heart of the San Francisco’s lineup greeted the 26-year-old slugger with a chorus of boos. He did his best to silence them Friday night. 

Harper slugged two monster home runs, including a three-run, go-ahead shot that sailed into McCovey Cove in the seventh inning, to carry the Phillies to a 9-6 win over the Giants, evening their four-game series at one game apiece.

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A three-run sixth highlighted by Stephen Vogt’s towering splash-hit homer briefly gave the Giants a one-run lead, but the Phillies erased the deficit by scoring four runs off left-hander Tony Watson in the seventh. After yielding a single to Adam Haseley and a walk to Sean Rodriguez, Watson misplaced a slider to Harper, who crushed it out to right-center field to put the Phillies ahead, 8-6.

“He’s been so good and just had an off night,” manager Bruce Bochy said about Watson. “We all do. He was off a little bit with hitting his spots. He’s just been so good, and the ‘pen’s been so good. We just had a little bump there. We made a nice comeback. Give them credit. They came back on us.”

Harper’s second career splash hit -- his first came with the Nationals in Game 4 of the 2014 National League Division Series off Hunter Strickland -- left his bat at 113.8 mph and traveled a projected 456 feet, according to Statcast.

“I just threw a mixer up there and he put it in the Cove,” Watson said. “It was a terrible pitch, and he crushed it.”

It was the second home run of the night for Harper, who also launched a 420-foot solo shot off rookie Tyler Beede in the fifth. Shortly after crossing home plate, Harper put his finger to his lips to hush the hostile crowd at Oracle Park.

"It just depends on what people say,” Harper said of his response to the heckling. “There are things people say that people shouldn't say and shouldn't come out of their mouths, but that's part of sports, I guess, and that's part of fan bases. San Fran's got a great fan base.

“It’s always fun coming into hostile environments and hostile situations. I’ve seen this stadium erupt, just like in 2014 when we were here in the playoffs. It’s always fun.”

Harper’s first multi-homer game of the season served as a reminder of the prodigious talent that made him one of the Giants’ top targets this winter. After watching Harper’s free agency drag deep into the offseason, the Giants opted to jump into the sweepstakes and make a serious run at the six-time All-Star and former NL MVP.

Giants brass, including president of baseball operations Farhan Zaidi, CEO Larry Baer and manager Bruce Bochy, flew to Las Vegas twice to meet with Harper and his agent, Scott Boras, before offering him a 12-year, $310 million deal to come to San Francisco. Harper ultimately declined, choosing to instead sign with the Phillies for $330 million over 13 years.

“Larry and Farhan, it was always great meeting with them this offseason,” Harper said. “We had great conversations, and I have nothing but respect for them two personally and for the Giants organization. It’s been successful for so long.”

For one night, at least, Harper left the Giants wondering what could have been.

“He had a great game,” Watson said. “You tip the cap and get them tomorrow.”