Gunnar Henderson’s Regression Looks More Self-Inflicted Than Physical

Gunnar Henderson’s breakout 2024 season looked like the arrival of a franchise-level impact bat. He hit for power, damaged fastballs, crushed breaking balls, controlled enough of the zone, and looked like the kind of hitter pitchers had to fear in every count.

Since then, the statistical regression has been obvious.

Year	BA	xBA	OBP	SLG	xSLG	OPS	wOBA	xwOBA	K%	BB%
2024	.281	.279	.364	.529	.499	.893	.381	.375	22.1%	10.8%
2025	.274	.276	.349	.438	.425	.787	.339	.341	21.0%	9.5%
2026	.208	.225	.272	.451	.392	.724	.315	.299	31.0%	7.6%

The question is why.

Is he being pitched differently? Yes.

Has he lost strength or bat speed? Maybe a little, but not enough to explain the falloff.

Did his swing change? It certainly appears so.

Is this mostly self-inflicted? The data points in that direction

This does not look like a hitter who suddenly lost the ability to be an impact hitter. It looks like a hitter who has allowed pitchers to change the way they attack him because his own approach and swing shape have made him easier to game-plan against.

Pitchers have adjusted, but Gunnar helped them get there

In 2024, Gunnar saw:

• 57.0% fastballs
• 25.9% breaking balls
• 17.1% offspeed

In 2026, he is seeing:

• 47.1% fastballs
• 30.4% breaking balls
• 22.4% offspeed

That is a major shift. Pitchers have cut his fastball diet by almost 10 percentage points from his breakout 2024 season and are feeding him more secondaries, especially offspeed.

Even with that change, his Whiff rate has slipped a bit, but not much.

Gunnar Henderson Whiff Rate by Pitch Type

Year	Fastball Whiff%	Breaking Whiff%	Offspeed Whiff%
2024	20.2%	29.3%	29.5%
2025	18.7%	32.4%	34.6%
2026	21.0%	32.7%	32.4%

Fastballs are not the problem.

Against fastballs:

Year	BA	SLG	xSLG	wOBA	xwOBA	HR
2024	.275	.470	.461	.368	.371	13
2025	.304	.442	.439	.366	.367	7
2026	.233	.534	.479	.369	.358	6

He is still doing damage against heaters. The batting average is down, but the power is still there. A .534 SLG and .479 xSLG against fastballs is not the profile of a guy whose bat suddenly cannot play.

The problem is what has happened when pitchers get him off the fastball.

The breaking ball dominance from 2024 is gone

This is probably the biggest difference between 2024 Gunnar and the version we’ve seen since.

In 2024, he absolutely punished breaking balls:

• .298 BA
• .708 SLG
• .613 xSLG
• .449 wOBA
• .418 xwOBA
• 19 HR

That was superstar-level damage.

In 2025, that fell hard:

• .229 BA
• .418 SLG
• .406 xSLG
• .298 wOBA
• .306 xwOBA
• 6 HR

In 2026, the surface numbers against breaking balls look better, but the expected numbers are a red flag:

• .256 BA
• .535 SLG
• .363 wOBA
• but only .194 xBA
• .332 xSLG
• .255 xwOBA

That tells me he has run into a few breaking balls, but the overall quality of contact against them has not really returned to 2024 levels. The whiff rate is basically the same, so this is not just a swing-and-miss issue. It is a damage-quality issue.

Offspeed has become the glaring hole

This is where the 2026 regression really jumps off the page.

Against offspeed:

Year	BA	SLG	xSLG	wOBA	xwOBA
2024	.274	.444	.445	.316	.319
2025	.255	.461	.413	.321	.317
2026	.071	.107	.258	.096	.208

That is a massive collapse.

The whiff rate against offspeed is actually not wildly different from previous years, but the results are awful and the expected results are still poor. This suggests he is either not recognizing it well enough, not staying back, or his current swing direction/attack angle is making him more vulnerable when pitchers take speed off.

And since pitchers are now throwing him more offspeed than they did in 2024 or 2025, that weakness is being exposed more often.

His approach has clearly changed, and not for the better

This might be the most important part of the whole thing.

In 2024:

• Chase rate: 23.2%
• Swing rate: 44.2%
• First-pitch swing rate: 25.2%
• Whiff rate: 24.4%

In 2026:

• Chase rate: 33.3%
• Swing rate: 48.7%
• First-pitch swing rate: 32.9%
• Whiff rate: 27.3%

That is a big approach change.

He is swinging more, chasing much more, and whiffing more. But the odd part is that his meatball swing rate has dropped to 70.7%, down from 77.8% in 2024 and 76.2% in 2025.

So he is not simply being more aggressive in a good way. He is being more aggressive on pitcher’s pitches while being less efficient at attacking mistakes.

That is usually the profile of a hitter who is pressing, guessing, trying to do damage too early, or not seeing the ball as well.

His swing has changed too

The bat tracking and swing-path data strongly suggest this is not just random statistical noise.

Bat speed is down, but not destroyed

Average bat speed:

• 2024: 76.3 mph
• 2025: 75.3 mph
• 2026: 74.4 mph
• MLB average: 71.7 mph

So yes, the bat speed is down. He is about 1.9 mph below his 2024 bat speed and almost a full mph below 2025.

But he is still well above MLB average. I would not say he suddenly lacks bat speed or strength. The bigger issue is that he is not squaring the ball up as consistently.

Squared-up contact:

• 2024: 32.3%
• 2025: 32.4%
• 2026: 27.8%
• MLB: 32.9%

Blast rate on contact:

• 2024: 22.8%
• 2025: 20.3%
• 2026: 14.2%

That is a much bigger concern than the raw bat speed drop. The swing still has juice, but he is not delivering the barrel the same way.

The swing path is more uphill and more pull-oriented

This is where everything starts to connect.

Attack angle:

• 2024: 8°
• 2025: 8°
• 2026: 13°

Swing direction:

• 2024: 3° oppo
• 2025: 1° oppo
• 2026: 3° pull

That is a real swing-shape change. He has gone from a more balanced/opposite-field-oriented path to a more pull-side, uphill path.

The batted-ball data confirms it.

In 2026:

• Pull rate: 50.0%
• Oppo rate: 18.8%
• Air rate: 60.4%
• Fly ball rate: 29.2%
• Pull-air rate: 30.2%

His pull-air rate in prior years:

• 2024: 14.9%
• 2025: 15.3%
• 2026: 30.2%

That is the loudest number in the entire profile.

Gunnar has basically doubled his pull-air rate from the last two seasons. That can create home runs, but it can also create a lot of rollovers, popups, underneath contact, and empty fly balls if the timing is not perfect.

The quality of contact is worse

His barrel rate is still good, but the type of contact has changed.

In 2024:

• Under%: 18.7%
• Flare/Burner%: 24.4%
• Barrel%: 11.2%
• Barrel/PA: 7.4%

In 2026:

• Under%: 28.1%
• Flare/Burner%: 19.8%
• Barrel%: 10.4%
• Barrel/PA: 6.3%

He is still capable of barreling the ball, but he is getting under the ball far more often and producing fewer useful line-drive/flare/burner outcomes.

That fits perfectly with the higher attack angle and pull-side air-ball approach. He is trying to lift and pull, but the contact quality is not as complete as it was in 2024.

Scouting Assessment

Gunnar Henderson doesn’t have a physical problem, he has an approach problem. He has not lost the ability to hit fastballs. He still has above-average bat speed, still has power, and still shows impact ability when he gets the right pitch.

But compared to 2024, several things have changed:

1. Pitchers are giving him fewer fastballs and more secondary pitches.
2. His 2024 breaking-ball damage has not carried over.
3. Offspeed pitches have become a major problem in 2026.
4. He is chasing way too much.
5. His swing is more uphill and more pull-oriented.
6. He is making contact farther out front.
7. He is producing far more pull-side air contact, but not enough squared-up damage.
8. His bat speed is down some, but the bigger issue is barrel accuracy and swing decision quality.

The 2024 version of Gunnar looked like a hitter who could damage almost anything, especially breaking balls. The current version looks more like a hitter trying to force damage. He is still hitting the ball hard enough and still has the raw tools, but the approach and swing shape have made him easier to game-plan against.

Right now, pitchers do not have to challenge him with fastballs. They can expand with offspeed, work him on the edges, and let his pull/uphill approach create outs.

How does he get back?

So how does he get back to being the impact hitter the Orioles had in 2024? My suggestion would be an approach change, relaxing a bit, and letting his talent take back over.

He needs to get back to controlling the strike zone, especially against secondaries. He has to cut the chase rate down. He has to stop giving pitchers outs off the plate. He has to punish mistakes when he gets them. And most importantly, he has to get back to using the whole field instead of trying to yank everything in the air.

That doesn’t mean taking away his pull-side power. His pull-side power is part of what makes him dangerous. Gunnar can still drive the ball to the opposite field. Sometimes it’s about letting the ball travel, seeing it longer, and start making consistent loud contact.

But right now, the swing looks too geared toward forced damage. More lift. More pull. More out-front contact. More chase.

Conclusion

The 2024 version of Gunnar Henderson was a complete impact hitter. The current version looks more like a hitter trying to hit like an impact hitter.

There is a difference.

The talent is still there. The bat speed is still above average. The power is still real. But until Gunnar gets back to controlling the zone, staying back on secondaries, and using the whole field, pitchers are going to keep attacking him the same way.

Right now, they do not have to come to him.

He is going to them.