SAN FRANCISCO — Sure is hard to send these San Francisco Giants home in October.

Joe Panik doubled off the right-center wall in the 13th inning to drive in Brandon Crawford, and the Giants outlasted the Chicago Cubs 6-5 on Monday night in Game 3 to extend their NL Division Series.

Boosted by Conor Gillaspie’s go-ahead triple in the eighth off Aroldis Chapman, the Giants rallied from a three-run deficit and won their 10th straight game when facing postseason elimination.

San Francisco overcame Kris Bryant’s two-run homer off closer Sergio Romo that tied it 5-all in the ninth, and an early three-run shot by pitcher Jake Arrieta against Giants ace Madison Bumgarner.

“Just because we’re down, we’re not out. If we’re breathing, we’re still fighting,” Panik said.

The wild-card Giants forced Game 4 at their raucous ballpark, postponing a potential Cubs clinch party in the visitors’ clubhouse.

Chicago leads the best-of-five playoff 2-1 and will send John Lackey to the mound tonight opposite lefty Matt Moore.

“We played it hard, we played it right — and they beat us,” Cubs manager Joe Maddon said.

Teammates piled on Panik in celebration after he came through on the 57th pitch from Mike Montgomery, beginning his fifth inning of relief. Crawford hit a leadoff double on an 0-2 curve, bringing Panik to the plate.

His big hit ended a 5-hour, 4-minute game that was only 29 minutes shy of the total time it took to play the first two series games combined last week at Wrigley Field.

“Somehow we always just find a way with our backs up against the wall,” Panik said. “It’s always somebody.”

Gillaspie hit a two-run triple in the eighth and Crawford added an RBI single to give the Giants a 5-3 lead.

Rookie left-hander Ty Blach earned the win, escaping a 13th-inning jam when pinch-hitter David Ross bounced into a double play.

Nationals 8, Dodgers 3

LOS ANGELES — Jayson Werth always wanted to hit a home run out of Dodger Stadium when he played two seasons in the venerable ballpark. His latest attempt came close with a 450-foot blast into the upper reaches of the left-field pavilion.

Werth’s homer helped break open a one-run game in the ninth inning, moving the Washington Nationals within one victory of taking a postseason series for the first time with an 8-3 win over the Los Angeles Dodgers on Monday and a 2-1 lead in their best-of-five NL playoff.

Heck, he even tied Babe Ruth with his 15th career postseason homer, good for 11th all-time.

Four relievers combined for 4 2/3 shutout innings, putting the Nationals in position to wrap up the NL Division Series today at Dodger Stadium.

“They work quick and they’re not afraid to go after anybody,” said third baseman Anthony Rendon, who hit a two-run homer in a four-run third that chased Kenta Maeda.

Werth added, “It gives us confidence. I feel like the bullpen is going to hold up and that might not have been the case or the feeling in years past.”

NL East champions for the third time in five years, the Nats were unable to advance during their two previous trips to the postseason. They lost in the Division Series to St. Louis in 2012 and San Francisco in 2014.

Indians 4, Red Sox 3

BOSTON — The ball settled into the right fielder’s glove, the Cleveland Indians poured onto the diamond and the Fenway fans fell silent.

Cleveland swept the Red Sox out of the postseason and sent David Ortiz into retirement on Monday night with a 4-3 victory that completed a three-game AL Division Series sweep.

“I’m glad he didn’t get a hit to beat us,” manager Terry Francona said. “I thought it was an honor to be on the field, competing against him in his last game, because he’s truly one of the best. You could tell the way people were hanging around yelling his name and everything. He deserves every bit of that.”

Coco Crisp hit a two-run homer, closer Cody Allen got four outs and the Indians advanced the AL Championship Series for the first time since 2007. That year, they took a 3-1 lead in the best-of-seven series against Boston before losing three in a row.

But this year there would be no fold.

“Nobody in this clubhouse doubts what we’re capable of,” reliever Andrew Miller said as music blared and corks popped in the visitors’ clubhouse.