The Dodgers’ offseason began at 8:07 Thursday night. Heavily favored to win a third straight World Series, they were swept into winter by the Milwaukee Brewers.

The final score doesn’t really matter, but for the record it was 6-4 Brewers. It wasn’t really that close.

The Dodgers led in every game of the National League Championship Series. They didn’t win any of them. No team has ever done that while getting swept in a best-of-seven series. So while the Dodgers didn’t three-peat, they made history just the same.

“They were relentless with everything that they did,” Dodgers infielder Max Muncy said of the Brewers. “They just strung together good at-bat after good at-bat. That’s usually what we do.

“We didn’t do it this series and they did.”

The Dodgers’ starting rotation, the most expensive in history, gave up 16 hits and 13 runs in 18 innings for a 6.50 earned-run average. The bullpen was nearly as bad, posting a 4.50 ERA in 16 innings.

The Brewers’ relievers, on the other hand, were spectacular. Milwaukee manager Pat Murphy went to his bullpen 14 times and just twice did a reliever give up a run. All four victories against the Dodgers and all seven Brewers wins this postseason have gone to a reliever, with the bullpen posting a 1.33 ERA in 40⅔ innings.

“Pitcher after pitcher came in and executed,” Muncy said. “When one of their pitchers faltered, the next guy came in and picked up the slack.”

And each time the Dodgers took a lead, the Brewers waited no more than two innings to cut into the deficit. Milwaukee trailed 4-0 after two innings Thursday. By the top of the fifth, the score was tied. An inning later, the Brewers went ahead to stay, becoming the first team with six comeback wins in their first eight postseason games.

“They respond,” Murphy said of his players. “We’ve talked about it all year long. You have a bad week, you have a bad game, you have a bad at-bat, you bounce back.”

“I love the Dodgers. I love their players. They’ve got legendary players,” he continued. “But we came in with a group that would not be denied. They were hungry, very hungry.”

The two-time defending champion Dodgers, meanwhile, appeared to be full. They hit with runners in scoring position as often as they hit into double plays, going four for 27 and stranding 24.

“We had our opportunities. We just didn’t get the job done,” first baseman Freddie Freeman said. “We won two [titles]. We came up short on the third.

Milwaukee’s Garrett Mitchell, right, celebrates with Cooper Pratt after hitting the go-ahead home run in the sixth inning of a 6-4 win over the Dodgers in Game 4 of the NLCS on Thursday night.

(Robert Gauthier / Los Angeles Times)

“There’s a lot of hurt at the end of the season. Sometimes you just get beat. That’s just kind of how it goes. You have to give credit to the Brewers. They played really good baseball.”

A year ago the Dodgers swept the Brewers in the NLCS. This fall the results were reversed.

“The sadness is we just didn’t accomplish our goal,” Muncy said. “The goal every year is to be the last team standing. This year we had a chance to do something historic, and we didn’t accomplish it. And every single time you’re not the last team standing, it’s heartbreak and it’s failure and it’s not what you’re looking for.”

The Dodgers’ clubhouse was closed for more than 35 minutes after the game, partly to process that heartbreak but also to give manager Dave Roberts and veteran infielder Miguel Rojas, who announced his retirement, a chance to address the team. When the doors finally opened, nearly every player was sitting in front of his locker, most still in uniform, waiting to explain what seemed to be inexplicable.

How did the greatest team money can buy wind up so flat when the stakes were so high?

“We’ve been grinding all season long,” said right-hander Tyler Glasnow, who retired the first 10 Brewers in order, but lasted just one more inning. “No one slacked off at all. Everyone just came in and worked hard. They just played a lot better than us. They were hitting on everything. It wasn’t our year.”

“Not every time it’s gonna be us,” left fielder Teoscar Hernández added through a forced smile. “It’s not fair for us to be doing the same thing over and over every year. Teams are going to learn from their losses the same way we’re gonna learn from this one.

“So hopefully we come back next year stronger.”

Speaking of next year, no one would.

Half the players on the Dodgers 26-man NLCS roster are on expiring contracts. The core of the team — Mookie Betts, Freeman, Muncy, Kiké Hernández and Teoscar Hernández along with pitchers Blake Snell and Glasnow — are 33 or older. The Dodgers could look very different when spring training starts — if spring training starts — in February.

“There’ll come a time when we think about next year,” Muncy said. “But that’s not right at this moment.”

The Dodgers have an extra-long winter to get through first.