'Miss the Barrel': How DL Hall's Unusual Profile is Working in Middle Relief

[Jack Stern]

Image courtesy of © Michael McLoone-Imagn Images

Outings like Monday night's have become typical for DL Hall this year. In two innings of relief, Hall issued three walks. He also struck out two, allowed zero hard-hit balls, and surrendered just one hit, enabling him to wiggle out of traffic without allowing any runs.

Hall's 2.20 ERA this year is not fully sustainable. Nor is it a true reflection of how he's pitched. His 20.3% walk rate is the third-highest among qualified relievers. He's issued a walk in 16 of his 23 appearances, including an active streak of eight straight outings with at least one free pass. Those free bases have kept him from getting the high-leverage assignments entrusted to fellow multi-inning relievers Aaron Ashby, Chad Patrick, and Shane Drohan.

Still, Hall's 3.86 xERA, 3.99 FIP, and 97 DRA- all indicate that from a process standpoint, he's been an above-average pitcher, despite the walks. He's kept the rest of the bullpen running efficiently by eating medium-leverage innings. It works because he rarely allows hits. Hall's batting average on balls in play this season is just .197. Last year, it was .202. He has the fifth-lowest BABIP among pitchers to throw at least 50 innings over the last two seasons.

It's a statistical outlier for that many batted balls to become outs. At some point, hitters will start finding some holes, but in Hall's case, allowing such harmless contact no longer seems to be purely a fluke. It means he's repeatedly achieving his primary goal against most hitters.

"Miss the barrel," he said. "That's what we're paid for, so that's all I'm trying to do."

Hall has excelled at missing the barrel over the last two seasons. In 2025, he induced whiffs on just 19.5% of swings, but he limited opponents to an elite 28.8% hard-hit rate and 6.3% barrel rate. His quality of contact is similar this year (32.2% hard-hit, 6.6% barrel), but now his whiff rate has jumped to 29.6%. Opponents have an expected slugging percentage of just .282 against Hall this year, which ranks in the top 7% of pitchers who qualify for Statcast's batted ball leaderboards.

He's harder than ever to square up, because his stuff is the best it's been in years. After failing to recapture the carry and velocity on what was once his signature four-seam fastball, Hall began reinventing himself last year to get outs by mixing speeds and shapes. He went from throwing one fastball to three, adding a cutter and a two-seamer. This year, he introduced a sweeper to bring his arsenal up to seven pitches. His stuff is grading out as above-average for the first time since his early days with the Baltimore Orioles.

Season	Stf+ 4FB	Stf+ 2FB	Stf+ FC	Stf+ SL	Stf+ CU	Stf+ CH	Stuff+
2022	113			130	97	113	116
2023	109			114	127	112	112
2024	82			103	94	92	89
2025	91	95	86	97	95	94	92
2026	95	106	92	116	99	89	103

"Before I came here, I always threw so hard that I was essentially a two-pitch guy," Hall said. "That was great when you're throwing 98-100, but I think God put me in the situation to where I couldn't go out there and do that at 92-93, so I basically got forced to learn to adjust. And I think that was kind of a wake-up call. In the long run, if you want to pitch in this game for a long time, you've got to have variety."

The two-seamer was more of an experimental pitch last year, but it's now Hall's primary fastball. He's still mostly a two-pitch pitcher to lefties, pairing the two-seamer with his new sweeper to beat them with stuff. Righties see more variety, which makes Hall's arsenal difficult to time up, even if it's not overpowering.

Committing to the two-seamer allowed Hall to refine it over the offseason. He's increased the average arm-side run of the pitch from 14.5 inches last year to 16 inches this season.

"When you throw a four-seam your whole life and then you grab two-seam, something feels different in your hand," he said. "I'm throwing so many sinkers now, when I go back to the four, it almost feels a little bit foreign sometimes."

With an average of 10.4 inches of induced vertical break from his three-quarters arm slot, Hall's two-seamer rarely has true sink. Instead, it's more of a ride-run shape. For that reason, rather than targeting the bottom of the strike zone, Hall has thrown most of his "sinkers" closer to the top of the zone, with the goal of running them off the barrel.

"Whether it's up or down, I'm running it off that sweet spot," he said. "I might throw one that's super ride-run, and then one might be kind of more just run. Either way, as long as I'm getting off that barrel, I'm probably getting the ground ball."

It's working. Formerly a fly-ball pitcher as a four-seam guy, Hall's 53.2% ground-ball rate is a career best. That includes a 58.3% ground-ball rate against his sinker. He's induced five double plays, second on the Brewers' pitching staff to only Chad Patrick, who has pitched 18 more innings than Hall.

Amid all of that good, the walks have remained a significant problem. Hall's new pitch mix is somewhat to blame. In past seasons, he consistently threw nearly 60% of his four-seamers in the zone, but he's still learning to control his new running fastball, throwing just 52.6% of his two-seamers in the zone. Throwing so many pitches has made it more difficult to find his release points, both within an outing and on the season as a whole.

"Coming out of the bullpen with seven pitches is kind of absurd," Hall said. "It's not really much heard of. I think part of it is getting into the rhythm of the game, and I think me and William [Contreras] do a really good job of limiting how much [time] it takes. Sometimes it might take a batter, and that batter gets walked, but I think we're good at limiting."

Some of the walks are more deliberate, a byproduct of Hall's determination to miss the barrel. The average MLB pitcher leans on their fastball to get back in the count after falling behind, throwing secondary pitches just 35.2% of the time in those situations. Hall throws non-fastballs at a 40.1% rate when behind. He willingly risks missing the zone with a breaking ball to keep a hitter off-balance in what is typically a fastball count. While he tries to attack lefties more aggressively with fastballs, he throws plenty of changeups and curveballs when behind in the count to righties.

"Having the sinker-sweeper combo against lefties now, if I'm landing those and doing what I'm supposed to do, there's no reason to try and give that righty any chance to hit a homer, or just hit it and catch a barrel," Hall said.

Part of his maturation, Hall said, has been learning when and how to pitch more carefully to potent righties when he has a more favorable matchup on deck.

"If I get a runner on, I'm a double play away," he said. "So if there's one out or two outs, then I know that if I'm facing a righty, I'm not giving him anything too good. Now, I've kind of learned to use that."

Even so, Hall knows he's walking too many hitters. He wants his misses to be more competitive, even when he's working more carefully around the zone by design. Walking some right-handers is okay, but every free pass to a lefty bothers him. He's even set up an accountability system with the rest of the Brewers' bullpen to curtail those.

"Every time I walk a lefty, I owe them a little something," he said.

The biggest help may come from his velocity finally returning. After Hall's two-seamer sat between 93 and 94 mph for most of April, it has sat nearly 96 and touched 97 over the last couple of weeks. That could give him the mental freedom to attack the zone more consistently.

"If the velo is still ticking [up], then that simplifies everything," Hall said. "Now you can really just be like, 'Hey, I'm just gonna rip this over the plate and get a good result.'"

Walks might always be part of the package for this version of Hall, who will likely remain closer to a middle reliever than a back-end bullpen arm. But even if some regression awaits, he's a useful big-league pitcher who, after some maturation, is adept at missing barrels. That's a major step up from where he was two years ago.

"It's like learning everything new, and also trying to get the body to a good spot," he said. "But it's definitely rewarding, and to see a little bit of light at the end of the tunnel is really cool."

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[wallus]

DL seems like a good dude so I hope he continues to have success