Bryce Miller leaves the Mariners with no good options for his 2027 outlook

The Seattle Mariners' 2026 season isn't over yet, but we're pretty much done with covering the team from a "What's happening?" perspective. We're skipping ahead to "What the hell was that all about?" analyses of the season, and nobody represents a more confusing case study than Bryce Miller.

He made his final start of the season on Friday against the Los Angeles Angels, and it closed the book in a way that feels appropriate. Because of some truly terrible defense, he wasn't as bad as his final line indicated. Still, there's only so much you can sugarcoat five runs in six innings.

Ultimately, Miller's 2026 is a tale of two seasons:

• First 8 GS: 1.71 ERA, 0.66 WHIP
• Last 13 GS: 6.14 ERA, 1.56 WHIP

Early on, he looked like the guy who snuck to the top of the rWAR leaderboard among Mariners pitchers in 2024, when he made 31 starts and posted a 2.94 ERA. And then, he did something resembling a late-stage Luis Castillo impression.

Bryce Miller took positive steps in 2026, but there are plenty of asterisks

It's when you dig deeper into Miller's season that things really get weird. Like, to a point where you can come away believing that he was actually Seattle's best starter despite his 4.17 ERA.

His expected ERA is a respectable 3.70. It reinforces the notion that bad defense and other factors outside his control were a feature, not a bug. It's also on the same level as the xERAs for Logan Gilbert and Bryan Woo, both of whom will come away with better results to show for their seasons.

Then you have the 95.9 mph average on the fastball, which was a new career best. And according to FanGraphs' Stuff+, Location+ and Pitching+ metrics, Miller's total package was also better than ever. Even if those metrics have a fondness for Mariners pitchers that is getting suspicious, it's further ammunition for the notion that Miller deserved better.

However, there's a common complaint among Mariners fans that Miller just doesn't hold up under various rigors. And no matter how you slice it, this season did not change that narrative.

This is the second year in a row that he lost time to the injured list, with the only silver lining being that an oblique strain is not as scary as a bone spur in the elbow. This isn't the first time he's faded as a season has gone along. His 1.033 OPS against hitters the third time through the order is extreme, but not really an outlier. Alas, even the velocity and movement on his fastball degraded over time.

The Mariners face a hard decision with what to do with Bryce Miller

All of this would be fodder for a "Dude, you're overthinking it" reaction if the Mariners were like most teams coming out of the 2026 season. As in, not exactly flush with talented starting pitchers, and therefore in a position not to be picky with the guys they do have.

But the Mariners are flush with talented starters. Miller is one of six viable rotation members alongside Gilbert, Woo, George Kirby, Emerson Hancock and Kade Anderson. Ryan Sloan is on his way, too. And don't forget Logan Evans, who'll be back from Tommy John surgery next spring.

Some way or another, it would be a good idea to pare this group down. There's no process for doing so that doesn't involve making a decision on Miller, and that's not something to envy.

His trade value hasn't increased since 2024, so shopping him may be pointless. The Mariners can trade someone else with the idea to keep Miller in their rotation, but the drawbacks of that are up above for your reviewing pleasure. A move to the bullpen is a possibility, but he doesn't seem convinced that's where he belongs. And with his free agency just three years away, he darn well should want to be starting.

The best (or is it the least bad?) option might be the one involving trading someone else. Hypothetically, that's an avenue to cashing in more trade value and using the deal to shore up the shortcomings of this year's team. If that includes the defense, that would be just fine.

Regardless, any scenario in which the Mariners keep Miller is going to put the pressure on him more than them. The talent to be a top-tier starter is clearly there. It's just going to remain obscure until he starts turning it into consistent results.

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