Jeff Hoffman Throws Hard, So Why Isn’t His Fastball Enough?

This article was written prior to games on April 24, and prior to the announcement that Jeff Hoffman is no longer Toronto's closer.

There’s this annoying fiction in baseball that velocity is the end-all, be-all. If you're a pitcher who can fire it at 100 mph and you kind of know where it’s going, you’re set. You just need one decent off-speed or breaking pitch to keep guys honest, and you can dominate. 

For years, Jeff Hoffman has been stuck inside that narrative, even though his actual profile is a lot more complicated than the "triple-digit" fantasy suggests. Let’s be real, Hoffman doesn’t actually throw that hard. He’s above-average, but his fastball velocity sits around the 75th percentile for relievers. That puts him smack in the middle between "pretty good" and "elite."

The raw ingredients are there, but calling Hoffman a guy who just tries to survive on heat and a prayer is a mistake. This year, he’s been much more calculated. He’s leading with the slider against righties and leaning on the splitter against lefties.

On paper, that mix should be enough to anchor any bullpen. Instead, we’re seeing the same frustrating pattern: inconsistency, giving up damage at the worst possible times and a fastball that gets absolutely smoked when hitters find it.

This isn't about effort or trusting his stuff. It’s about physics. Specifically, it’s about why throwing hard without the right movement profile is basically a death wish at this level.

The real issue is that his heater doesn't behave like a modern power fastball should.

Hoffman’s fastball isn’t exactly a “straight fastball,” but it is awfully close. No big-league pitch is truly straight, but there’s a massive gap between "functional movement" and what a hitter perceives as straight.

When a hitter calls a pitch straight, they’re talking about a predictable plane and a spin axis that doesn’t fool the eye. Velocity without deception is just driving fast in a straight line on an empty highway. It looks cool, sure, but it doesn't actually test your skills. If you want a challenge, try off-roading.

The most dangerous heaters in the league are the ones that refuse to move the way a hitter’s brain expects. Effective movement comes from high-spin, back-spinning fastballs that stay in the air longer, forcing guys to swing underneath the ball.

People keep saying Hoffman has below-average ride, but that’s not technically true. The induced movement on his four-seam fastball is 0.7 inches below average (through games on April 23), basically a rounding error. His real issue is regression.

He’s lost about 2.5 inches of induced break compared to the 2024 and '25 seasons. That loss of vertical movement is the reason his pitches are getting squared up by batters with swings designed to hunt that flatter plane.

Most critics don’t give him credit for his fastball’s well-above-average horizontal break. Most analysts obsess over vertical movement, but Hoffman has this unique east-west shape on his fastball. It’s a different kind of deception, even if it lacks that "rising" effect.

Hard fastballs without vertical deception travel way further when they’re barreled. That’s just physics. When the barrel meets the ball squarely, the energy transfer is perfect. The result is a high exit velocity and a ball headed for the flight deck. If you add vertical movement or arm-side run, that contact point shifts by a fraction of an inch. In the majors, those fractions are the difference between a warning track out and a soul-crushing home run.

You can see it in his batted ball profile. Hoffman's home run-to-fly ball rate has fluctuated over the course of his career; the past two years, he's given up homers on 21% of his fly balls (per FanGraphs), almost twice the league-average rate. That number isn't a fluke. It illustrates how unforgiving his fastball is when his command is off. He’s in a weird gray zone. His 96-97 mph velocity is plenty fast, but it’s flat enough vertically that hitters can match the plane. Without the vertical break he used to have, the pitch offers zero forgiveness when it leaks over the heart of the plate.

Hoffman’s velocity and spin haven't really changed much since his strong 2024, yet the run value on his heater has swung wildly. Basically, it comes down to execution and pitch shape, not just velocity.

Modern hitters aren’t just guessing; they’re trained to recognize shapes. That’s why they’re always on those tablets in the dugout, and no, they aren’t playing Clash of Clans. They’re studying exactly how a pitch moves through the zone. A heater without movement is easy to time, even if it’s coming in hot. A normal human won't touch 98, but a big-leaguer isn't intimidated by it.

There are no easy solutions to Hoffman’s woes. You can’t simply change a fastball. A pitcher almost never reshapes their fastball in the middle of a season, and it hardly ever works. Messing with the grip or release point creates a ripple effect that can kill command or ruin secondary pitches.

A focus on secondary pitches is where Jordan Romano got into trouble when his slider started to hang. However, when hitters are guessing at what’s coming, velocity can play up even without movement.

For Hoffman, the goal right now has to be optimization, not reinvention. He has to survive by living on the edges of the zone, leaning even harder on the slider and splitter, and using that weird horizontal movement to mess with timing.

Every one of those strategies requires near-perfect execution. Fastballs without elite vertical ride don't give you a "get out of jail free" card when you miss your spot. That’s why Hoffman’s struggles feel so loud. They’re punctuated by home runs, not bloop singles.

Jeff Hoffman isn’t broken, and his fastball isn't useless, but he and the Jays are living on a narrow ledge where dominance and disaster are separated by about an inch of movement. It’s the physics of the game playing out in real time, and it’s a reminder that throwing hard is just the start of the conversation.