The Giants hit five home runs and continued their run against playoff contenders with an 11-0 victory over the Diamondbacks

PHOENIX – Michael Conforto and Brett Wisely each hit three home runs in San Francisco's six-run third inning, and the Giants won their fifth straight against playoff contenders by beating the Arizona Diamondbacks 11-0 on Tuesday night.

The Giants have all but perfected their role as spoilsports lately, going 7-1 against Baltimore, Kansas City and Arizona. San Francisco extended its season-high winning streak by hitting five home runs in the first three innings against the Diamondbacks, including three against Brandon Pfaadt (10-10).

“Things like this happen and it’s contagious,” Giants manager Bob Melvin said. “You start playing well and you just feel like you have a chance to win.”

Patrick Bailey hit a solo home run in the second inning, Conforto hit his 20th in the third inning and Wisely followed with a three-run home run to make the Giants 7-0.

Tyler Fitzgerald hit a two-run home run and Heliot Ramos added a solo shot among his four hits. Logan Webb (13-10) allowed four hits in six scoreless innings.

“We're having fun and you can see that from the dugout,” said Webb, the first Giants pitcher with consecutive 200-inning seasons since Jeff Samardzija in the 2016-17 season. “We make plays, we hit well and that builds chemistry.”

The Diamondbacks are working at the wrong time.

Arizona blew an 8-0 lead in a loss to Milwaukee, opened that series with a 6-3 loss and scored six goals Tuesday night. The Diamondbacks' lead over Atlanta, a 5-1 win over the New York Mets, shrank to half a game with four games remaining for the final playoff spot in the Netherlands.

“Normally I try to filter things and find something positive, but I don't think there was a lot of positive that came out of this game today,” Diamondbacks manager Torey Lovullo said. “We have to play better baseball.”

Pfaadt bounced back from an ugly start – eight runs in 1 2/3 innings – to score 12 runs in a win over Milwaukee, his last start.

The right-hander followed with another shaky outing.

Pfaadt gave up Bailey's eighth home run of the season in the second inning and got some help later in the inning from right fielder Corbin Carroll, who reached over the wall to steal a three-run home run from Mike Yastrzemski.

Conforto's shot in the third period, a three-point shot from the overhang in left center, had no chance. He wisely followed a fielding error by Arizona shortstop Geraldo Perdomo with his three-run shot against Blake Walston.

Pfaadt allowed five runs – four earned – on six hits in 2 2/3 innings.

“I felt great physically and felt like we made some good throws early,” Pfaadt said. “We just left a few fastballs up the middle and paid the price.”

TRAINER ROOM

Diamondbacks: C Gabriel Moreno went 0-for-3 after missing Monday's game with an oblique strain. … RHP Ryne Nelson is expected to come off the injured list soon after missing two weeks with shoulder inflammation.

NEXT

Giants RHP Mason Black (1-4, 5.88 ERA) will face Diamondbacks RHP Zac Gallen (13-6, 3.74) in the series finale on Wednesday.

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