The Mariners didn’t just take a series from the Red Sox at Fenway Park. For three days, they looked like a completely different offense.
Seattle closed out Wednesday with an 8-3 win and its second straight victory over Boston, and the scoring binge across the series was the kind that makes you do a double take. The Mariners scored at least eight runs in all three games and piled up 25 total runs. For a club that has spent most of the year scraping for offense, that number lands hard.
Through 140 games, Seattle has scored 555 runs, which works out to 3.96 per game - the second-lowest average in baseball. At Fenway, the Mariners averaged 8.33 runs per game. That’s more than six games’ worth of their usual output packed into one series.
And it wasn’t a one-note surge. On Tuesday, Seattle used three home runs to score nine runs.
On Wednesday, it pushed across eight without leaving the yard. The Mariners collected 12 hits, drew five walks and struck out only five times in the finale.
Seven starters got a hit. J.P.
Crawford reached base four times, Julio Rodríguez had two hits and Jhonny Pereda drove in two runs.
That’s the part that stood out most: they kept the line moving. No one swing had to carry the whole night.
One hitter passed the baton to the next, and the pressure kept building. That’s what a functioning offense is supposed to look like.
The defense backed it up, too. Randy Arozarena erased a possible first-inning run with a strong throw to the plate Wednesday, and the infield turned a key double play.
Seattle made the routine plays and kept the game clean, committing just one error over the two victories. Boston still found baserunners, but the Mariners stopped giving away the extra ones.
Lazaro Montes did not play in the series finale, but his debut Tuesday still mattered to the feel of the week. It became the emotional center of the series and, as the source put it, brought joy into the clubhouse.
That response mattered because the opener could have sent everything sideways. Seattle led Monday 8-5, had a runner on third with nobody out in the ninth, and still lost 9-8 in 10 innings.
It had the feel of the old Fenway ending - the Mariners doing enough to win before Boston and the ballpark found a way to snatch it away. Instead, Seattle answered by winning the next two.
There’s a pattern there, too. Last season, the Mariners arrived at Fenway after going more than a decade without winning a series there.
They dropped the 2025 opener 8-3, then bounced back with 8-5 and 4-3 wins to claim their first series victory at Fenway since 2014. This year followed the same basic script, only with a more painful loss to start it off.
Two seasons. Two opener losses.
Two straight series wins.
It’s a real shift, even if it’s arriving in a season that has offered too few of them. Seattle is still 66-74, and the standings have already made their call. But the Mariners do have a soft September schedule ahead, and in Boston they at least showed the version of themselves they thought they were building: balanced, energetic and resilient.
The question now is whether there’s enough time left for it to matter.
In Other News...
Mariners Take A Chance On A Former Top Prospect With Upside
The Mariners added a familiar kind of lottery ticket to their pitching depth, signing right-hander Simeon Woods Richardson to a minor-league contract and sending him to Triple-A Tacoma. Once regarded as one of the better young arms in the system, Woods Richardson has already seen the majors with both the Blue Jays and Twins, and his path has taken him through a designation for assignment by Toronto before he elected free agency.
For Seattle, the move fits the sort of low-cost gamble contenders often make when they believe there is still something to unlock. Woods Richardson gives the organization another arm to evaluate in Tacoma, where the Mariners can keep a close eye on a pitcher who made his big-league debut in 2022 and is still young enough to factor if the stuff and command come together again. [Read more 🡒]
Mariners Just Created A Connor Joe Question Fans Can't Ignore
The Mariners latest roster shuffle left Connor Joe in a familiar but uneasy spot. After Seattle designated Joe and right-hander Nolan Kingham for assignment to make room for Lzaro Montes and Hoby Milner on the 40-man roster, both players cleared waivers and were outrighted to Triple-A Tacoma, keeping the move from being the end of the road for either player just yet.
Joe now has a decision to make, since he has the right to elect free agency, and the Mariners have not indicated whether he plans to stay in the organization or test the market. Kinghams path is more straightforward because his service time means he has to accept the assignment, but Joes situation is the one that lingers for Seattle, where every roster spot matters and every fringe move can hint at what comes next. [Read more 🡒]
Mariners May Have Found A Better Use For Their Latest Pitching Add
The Mariners added another arm to their system by signing right-hander Simeon Woods Richardson to a minor-league deal and sending him to Triple-A Tacoma. Most of his big-league work has come as a starter, but he has also handled multiple roles this season, which makes him an interesting fit for a Seattle pitching staff that suddenly needs more flexibility.
With rotation depth thinned by an injury, the appeal here is less about where Woods Richardson has traditionally worked and more about where he might help most. Seattle can use pitching in just about any form right now, and his ability to cover innings gives the club another option if it wants to patch a game together out of the bullpen or lean on a bulk reliever while the roster sorts itself out. [Read more 🡒]