BOSTON — One week ago, the Astros were seven games into an uncharacteristic stretch on offense in which they averaged just 2.3 runs per game with only four home runs.

Yordan Alvarez was enduring a season-long 13-game homerless drought, and Jose Altuve was looking to hit his first homer since July 12.

How quickly things can change in one week.

After taking two of three from the Rangers in Arlington, the Astros stormed into Fenway Park, where they crushed nine homers over a three-game sweep of the Red Sox, culminating with a 10-2 finale on Sunday. The club’s fifth straight victory kept Houston tied with Seattle for first place in the AL West and pushed the club to a season-high seven games over .500.

“It’s a good feeling,” manager Joe Espada said. “[ Alex Bregman’s] starting to get into a groove. And we always see him late in the season, August, September — those are months that Breggy loves. And he’s found his swing. You get Yordan behind him, and [Yainer] Diaz getting some big hits if they’re going to intentionally walk Alvarez? Watch out.”

Alvarez was responsible for three of the Astros’ weekend blasts — including two on Saturday for his 19th career multihomer game and his fourth this season. His latest offensive performance drew praise from the opposing manager, with Alex Cora comparing the slugger to both Aaron Judge and Hall of Famer David Ortiz.

“It’s awesome, and just to be able to be his teammate and be able to watch what he does on a day-to-day basis is special,” Bregman said. “I mean, he hits for average, line to line, and can hit the ball out of the ballpark anywhere. He’s always fun to watch, and he’s very clutch, too. He comes up with clutch moments and always gets his A-swing off.”

Alvarez’s 428-foot homer came on the heels of Bregman’s 17th of the season, which traveled a Statcast-projected 441 feet to set a career high for the third baseman. Could Bregman feel his new record being set off the bat?

“No, not really,” Bregman said with a laugh. “To be honest, just happy it snuck out of there.”

Bregman’s homer was part of a 2-for-4 day that extended his multihit streak to a career-high five games. It’s no coincidence that this streak comes during August, a month in which Bregman has historically dominated. Across 870 career plate appearances in August, Bregman is slashing .336/.418/.583 with a 1.002 OPS, 36 homers and 145 RBIs.

New England product Jeremy Peña joined the fun with a two-run homer in the sixth inning, his second at Fenway since making his debut in 2022. And Altuve snapped his skid with career homer No. 224 on Friday to move him into sole possession of fourth place all-time for Houston.

Not to be lost in the Astros’ return to offensive dominance is their strong and steady presence on the mound.

Hunter Brown followed a stellar outing from Spencer Arrighetti with a strong start of his own, holding the Red Sox to two runs and matching a season high with nine punchouts over 5 1/3 innings. Brown came out of the gate throwing heaters, hitting 99.5 mph in the first for the fastest pitch of his Major League career.

“Big swings, a ton of good at-bats throughout. But it starts with the guy on the mound for me, always,” Espada said. “Hunter Brown, another great outing. Nine punchies, navigated a tough lineup. Really good. Starts with that guy on the mound, and then our bats … big hits, homers, walks. [Mauricio Dubón] scoring on that ball in the dirt to get our first run through, that was an impressive offensive — and pitching — series.”

With two series wins under their belt on this three-city road trip, the Astros headed to St. Petersburg for a three-game set against the Rays confident but not complacent as they look to put some distance between themselves and the Mariners.

“That’s a playoff team over there,” Bregman said of the Red Sox. “They’re a really good ballclub. To come in and play well … our pitching threw the ball well, I thought we put together quality at-bats all three days and we got to continue to do that. Especially when we play against really good teams.”