Walton’s Walk-Off Homer Sinks Mariners, Keeps A’s Rolling

MLB Walton’s Walk-Off Homer Sinks Mariners, Keeps A’s Rolling

By Ben Gale

September 12, 2026 • 3:04 AM EDT

Updated 9 seconds ago

Walton’s Walk-Off Homer Sinks Mariners, Keeps A’s Rolling

If you wanted late-game drama, the A’s and Mariners made sure you got your money’s worth in West Sacramento. Down a run in the tenth, Donovan Walton stepped up and smashed a walk-off two-run homer, powering the Athletics to a wild 6-5 win. On the flip side, Seattle’s postseason ambitions are just about finished with this gut punch of a loss.

Oakland grabbed the opener of this series by playing spoiler — and no one saw the hero coming. While the A’s bullpen did its best to hand it away, Walton’s blast turned a tough night on its head, sending his crew home with their second straight win and nudging the Mariners to the brink. According to Yahoo Sports, the A’s are now 3.5 games above the Angels in the AL West, making every little victory sweet even with the playoffs out of reach.

The tone was set early. Jeffrey Springs took the ball for the A’s and, despite seeing the same Seattle lineup again within days, put together a steady outing. The vet gave up two early runs through some Mariners small-ball, but settled right back in — a sign that he’s not mailing it in for his final month in Oakland colors. If you’re wagering on the A’s while he’s on the mound, you have to factor in both his opponent familiarity and his split between home and away outings.

Let’s get specific. Springs’ line: 5 innings pitched, 6 hits, 2 earned runs, 2 walks, 1 strikeout, 94 pitches. Solid effort, built to give his team a shot. But as anyone who’s tailed the A’s this year knows, the bullpen is always dicey. Springs left with a lead — and like clockwork, the relievers coughed it up.

Early Action and Power Plays

The A’s offense wasted no time getting after George Kirby. Henry Bolte led off with a single, swiped his 20th bag, and Jeff McNeil drove him home with a double. Max Muncy followed suit, tacking on another RBI. Just like that, it was clear this wasn’t going to be a pitchers’ duel.

A real turning point: Lawrence Butler’s two-run homer a few innings later, Butler’s 14th of the year, stretched Oakland’s lead to 4-2 and gave a glimpse of his clutch potential late in the season. If you’re following Butler props or ‘to hit HR’ lines, his form is worth a look as the campaign winds down.

Key Developments

Jeffrey Springs kept Seattle largely quiet after the early goings, building a platform for the A’s offense
The A’s jumped on George Kirby early, with Bolte, McNeil, and Muncy helping flip the deficit
Lawrence Butler provided a huge two-run shot, his 14th of the season
Oakland’s bullpen faltered, letting Seattle back in with a two-run homer from the Mariners
Seattle grabbed the lead in extras, cashing in the ghost runner in the tenth
Donovan Walton’s walk-off home run turned defeat into a 6-5 A’s win

Mariners’ Rally Falls Short

Out of the pen, Scott Blewett wasn’t able to hold down the fort. Seattle tied it with a two-run homer in the sixth, erasing Butler’s earlier heroics. By the tenth, the Mariners cashed in the ghost runner to snatch a 5-4 lead, staring at a prime chance to keep their slim playoff dream alive.

But the A’s weren’t done. Down to their last breath, Walton brought the fans to their feet — and, if you were holding a live A’s ticket, probably left you grinning. It’s not just sweet for Oakland backers, it might have been the final nail in Seattle’s postseason coffin.

The Bottom Line for Bettors

Walk-off power always matters: late-game skills give the A’s sneaky value in extras
If you’re reading trends, the Mariners bullpen woes continue, so beware late-inning bets on Seattle to close
The Athletics are playing with house money. That’s dangerous for desperate opponents and creates plus-money underdog appeal
Springs is auditioning for his next contract and pitching for pride, keep that in mind for his final few starts

Key Takeaways

Donovan Walton’s walk-off two-run homer sealed the A’s 6-5 win in the tenth
Lawrence Butler’s 14th homer kept the A’s out front until the bullpen slipped
Jeffrey Springs delivered five steady innings, holding Seattle to two early runs
The Mariners’ bullpen lost another tight game, a familiar trend
Oakland’s bats are alive early despite deeper lineup struggles
The A’s knocked Seattle’s playoff hopes to near-zero with this loss
For in-game betting, look for late twists both ways with these teams
The A’s have momentum for the rest of the series after back-to-back wins
Springs’ next start against the Rays will be a major jump in difficulty

The Series Moves On

The A’s now have a shot at a series win and all the fun that comes with keeping rivals squirming in September. Tomorrow it’s Gage Jump for the home side and Bryan Woo (a local lad) for Seattle. Right now it looks like the A’s have all the momentum and Seattle are running on fumes.

More coverage: more MLB headlines, MLB analysis and odds and MLB expert picks.

Frequently Asked Questions

Donovan Walton hit the walk-off two-run homer in the tenth inning, giving the Athletics a 6-5 win over the Mariners.

Jeffrey Springs tossed five innings, allowing six hits and two earned runs, walking two and striking out one. He kept the A’s in control before the bullpen gave up the lead.

The Athletics defeated the Mariners 6-5 in a walk-off win during extra innings.

This defeat leaves the Mariners’ playoff hopes in serious trouble with a shrinking window for a postseason berth.

Lawrence Butler slugged his 14th homer of the season, Henry Bolte singled and stole his 20th base, and both Jeff McNeil and Max Muncy logged early RBIs.

Lefty Gage Jump is set to start for the A’s, with Bay Area native Bryan Woo expected on the mound for the Mariners in the next game.

The A’s are relishing the spoiler role, winning two straight and climbing above the Angels in their division standings.