Bryce Miller knows exactly what’s been slipping away.
The Mariners right-hander has built his game around conviction, especially with a fastball he wants up in the zone and attacked with purpose. When that version of Miller shows up, he can set the tone of a game in a hurry. Lately, though, the pitcher on the mound has looked more like someone searching for answers than someone delivering them.
That search has been going on for a while. Miller’s 2025 season has been interrupted by health issues from the start.
A nagging elbow problem cost him the back half of May, then sidelined him from June until late August after the initial treatment didn’t fix it. This spring brought another setback, with an oblique strain delaying his season debut.
Since he’s been back, the inconsistency has lingered, and August was flat-out brutal: 21 runs allowed over four starts, no Mariners wins in any of those outings, including the 22-0 loss at the Brewers and the 19-2 loss against the Cubs.
Seattle has also tried to change his role twice. First came a piggyback arrangement with Luis Castillo.
Then, after Kade Anderson was promoted, Miller was moved to the bullpen. Neither plan really got off the ground.
The Mariners traded Castillo at the deadline, and Emerson Hancock’s adductor strain hit before Miller could make a single bullpen appearance.
Now Miller is dealing with something more personal than a bad month. He’s staring at the possibility of losing his spot in the starting rotation, the only role he’s known since the Mariners drafted him five years ago.
That kind of pressure makes every adjustment feel heavier, because it isn’t just about performance. It’s about identity.
Part of the issue is the pitch mix. Left-handed hitters have always been a problem for Miller; even in his best season, 2024, they slugged about a hundred points higher against him, at .389.
To fight that, he added a splitter and a cutter. The splitter has become a real pillar of his arsenal and now stands as his second-most used pitch, useful against hitters from both sides.
The cutter has been a different story. Miller has used it more often to steal strikes, especially early in counts against lefties, and it has produced his best whiff rate of the season, over 35%.
But when hitters do connect, they do serious damage: they’re batting over .350 against it and slugging .882, compared with a .567 xSLG. He only throws it about 6% of the time, but the danger is obvious.
The larger problem is what every cutter thrown represents. It’s one less fastball, and Miller has been clear that his identity is as a fastball-forward pitcher. Not just any fastball, either, but the one he drives at the top rail, where it plays best.
That hasn’t always been the pitch he’s throwing. Multiple times this season, his fastball has drifted low in the zone, taking on more of a traditional sinker shape.
In his latest outing against Texas, a rough one in which he allowed four runs in 3.2 innings, the command was all over the place. Some fastballs got to the top rail.
Others missed badly beneath the zone, leaving him in ugly counts.
After that game, Miller said the approach was intentional, pointing to a Rangers lineup that included hitters such as Jake Burger, who handle the high fastball well. But the results didn’t back it up. Miller got only four whiffs on 23 swings, and hitters offered at the pitch only about half the time.
The right-hander didn’t hide his frustration afterward.
“I just got to get back to getting ahead, attack with confidence, with my best stuff, and trust it. That’s the main thing that allows me to have quick at-bats, have quick innings, get deep into games. Shoving fastballs as aggressively as possible.”
He also acknowledged that his fastball location has strayed from what makes him effective.
“I’m not a guy that’s going to dot the fastball down and away over and over. Jacob deGrom’s great at that.
That’s not what I do. When I try to do that too much, then that leads to - miss an inch here, an inch there, and then you get into bad counts.”
Those bad counts have piled up. In August, Miller’s walk rate doubled to 13%, and the ugliest example came in the loss to Chicago, when he walked a career-high seven hitters.
After that game, he said, “It’s felt like all of my walks in the last month or month and a half have scored,” Miller said after that outing, “but when you have seven walks, what do you expect? It’s super frustrating.”
He also admitted he may have been working against himself mentally.
“I’m at my best when I’m going to attack this pitch, give this pitch all I have and not think ahead. And I think that last month I’ve been kind of thinking ahead too much, and thinking of what I need to do to this batter, the next batter, the next inning, to get out of this with a good line and keep us in it.
That’s not what I do when I’m at my best. It’s got to be this pitch, this moment, this at-bat, one at-bat at a time, one pitch at a time.
So that’s one thing I need to do better.”
That’s the tension with Miller right now. He understands the situation.
The Mariners are trying to survive a season, and he’s trying to keep his own place in it. He has always had the Big Tex version of himself available - the swagger, the confidence, the presence.
This year, that part has been harder to access. But it hasn’t disappeared.
Miller still has time to find it again, to get back to the fastballs in the zone and the tempo that make him himself.
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