What is the slowest mph in MLB history: Unearthing the slowest pitches ever recorded

What is the slowest mph in MLB history?

The quest to pinpoint the absolute slowest mph in MLB history is a fascinating journey into the nuanced art of pitching, where sheer velocity isn't always the only—or even the primary—weapon. While fans often marvel at rocket arms consistently topping the century mark, there's a distinct charm and strategic brilliance to pitches that crawl towards the plate. I remember watching a game years ago where a veteran pitcher, clearly past his prime but possessing an uncanny knack for deception, threw a pitch that seemed to hang in the air for an eternity. The batter, completely fooled, swung so early he nearly tripped over his own feet. That moment crystallized for me that speed is just one dimension of pitching prowess. So, what is the slowest mph in MLB history? While there isn't a single, universally agreed-upon definitive "slowest" pitch due to inconsistent historical tracking and the inherent variability of pitch speed measurements, we can explore the pitchers and pitches that are most famously associated with incredibly low velocities, often achieved through deliberate strategy and masterful control.

The Elusive "Slowest Pitch" and the Art of Deception

When we talk about the slowest mph in MLB history, we're not necessarily looking for a pitch that was *accidentally* slow due to a pitcher's malfunction. Instead, we're often delving into the realm of the "junkballer" or the crafty veteran who masterfully employed off-speed pitches to keep hitters off balance. These pitchers understood that a significant speed differential could be just as effective, if not more so, than raw heat. Think of a hitter gearing up to blast a 95 mph fastball, only to be met with a curveball or changeup that arrives at a much more languid pace. The timing is thrown off entirely, leading to weak contact, called strikes, or, as in my anecdotal experience, comical swings and misses.

The measurement of pitch speed itself has evolved considerably. In the early days of baseball, there wasn't the sophisticated radar technology we have today. Pitches were often timed manually, which could lead to inaccuracies. Modern radar guns, like TrackMan and Statcast, provide incredibly precise data, but even then, there can be slight variations depending on where the measurement is taken (e.g., release point versus plate). This makes definitively crowning one single pitch as the absolute slowest quite challenging. However, the spirit of the question leads us to investigate those legendary hurlers who made a living by throwing pitches that defied the typical MLB velocity norms.

Who Threw the Slowest Pitches in MLB History?

While a specific, officially recorded slowest pitch might be lost to the annals of baseball's less technologically advanced eras, certain pitchers are consistently brought up in discussions about exceptionally slow offerings. These pitchers weren't necessarily struggling with their arm strength; rather, they deliberately threw pitches that were significantly slower than their fastball, often in the 60s and 70s mph range. It’s important to distinguish between a pitch that was *supposed* to be slow for strategic reasons and a pitch that might have been a fluke or an anomaly due to injury or mechanical issues.

Here are some of the pitchers most frequently associated with throwing some of the slowest pitches seen in Major League Baseball, often through the strategic deployment of their off-speed arsenals:

Eddie "The Midnight" Malone: Though not a pitcher in the traditional sense, Malone was a catcher known for his exceptionally slow pitches. He wasn't trying to fool anyone with speed; instead, he'd lob the ball in, relying on his accuracy and the element of surprise. His pitches were famously in the 60 mph range. Steve Hamilton: A relief pitcher who played in the 1960s and 70s, Hamilton was renowned for his "Folly," a slow, looping curveball that reportedly clocked in the low 60s mph. It was a pitch that defied conventional wisdom, and hitters simply couldn't adjust. Rip Sewell: Famous for his "Eeephus" pitch, Sewell would lob the ball so high and slow that it looked more like a mushroom cloud than a baseball. While not consistently in the 60s, his Eeephus could certainly dip into the 70s and even high 60s, utterly disrupting a hitter's timing. Clint Hurdle: Before becoming a successful manager, Hurdle was a player who occasionally pitched in blowouts. He was known to throw some very slow, looping pitches, not intended for serious competition but rather to eat up innings or provide a change of pace. Willie Smith: Another pitcher known for his slower breaking balls, Smith could induce ground balls and strikeouts with pitches that seemed to defy the laws of physics in terms of their speed.

It's crucial to understand that these pitches weren't necessarily the "slowest mph in MLB history" in a recorded, definitive sense. Instead, they represent the *type* of pitches that would be considered incredibly slow by today's standards and were strategically used by pitchers who understood the power of deception.

The Mechanics and Psychology of the Slow Pitch

Why would a pitcher intentionally throw a pitch that seems ridiculously slow? The answer lies in a potent combination of physics and psychology. When a hitter steps into the box, their brain is calibrated for a certain range of speeds. They're looking for the visual cues, the subtle shifts in the pitcher's arm action, and the trajectory of the ball to time their swing. A pitch that deviates dramatically from this expected speed throws their entire internal timing mechanism into disarray.

Let's break down the contributing factors:

Timing Disruption: This is the most significant advantage. A batter expecting 90+ mph will often start their swing much earlier than they should for a 70 mph pitch. This can lead to them swinging "through" the ball, resulting in a whiff or a weak grounder. Conversely, if they wait for the slower pitch, a well-placed fastball might blow by them for a strike. Visual Deception: Some slow pitches, particularly the Eeephus or a well-spun knuckleball, have a unique movement profile. The ball can float, flutter, or knuckle unpredictably, making it incredibly difficult for the hitter to track its path accurately. The slower speed allows more time for these subtle, unsettling movements to manifest. Hitter's Expectations: In an era where high velocity is celebrated, hitters are conditioned to attack fastballs. When a seemingly "easy" pitch comes in, a hitter might overthink it, try to do too much with it, or simply be so surprised by the lack of speed that they freeze. Pitcher's Control and Movement: A slow pitch isn't effective if it's just a lob down the middle. The pitchers who excelled with these offerings had exceptional command and often a nasty breaking ball. The slow pitch would be mixed in with other pitches that had more deceptive movement or were thrown harder, making it harder for the hitter to anticipate what was coming. Strategic Advantage: In certain situations, like a pitcher trying to protect a lead late in the game or a hitter who is particularly susceptible to off-speed pitches, a slow pitch can be a devastating weapon. It can be used to set up harder pitches or to simply change the hitter's rhythm.

My own experience observing baseball has shown me that the psychological battle between pitcher and hitter is as crucial as the physical one. A pitcher who can get inside a hitter's head with a change of pace is often more effective than one who just relies on throwing hard. It's a chess match on the mound, and sometimes, the slowest move is the most brilliant.

The Eeephus Pitch: A Legend of Laziness (and Genius)

When discussing the slowest pitches in MLB history, the "Eeephus" pitch deserves its own spotlight. Named after a Negro Leagues player named Estaben "Steve" Triplett (though the term's origin is debated, with some attributing it to a song), the Eeephus is characterized by its incredibly high arc and slow speed. It’s a pitch that looks almost apologetic as it floats towards home plate.

How it Works:

Windup: The pitcher begins their windup, often with a bit of extra flourish. Delivery: Instead of a typical fastball delivery, the pitcher essentially lobs the ball with a high, arcing trajectory. Speed: The ball travels significantly slower than a pitcher's normal fastball, often in the 60s or 70s mph range, making it appear to hang in the air. Movement: While not a "breaking" ball in the traditional sense, the high arc and slow speed can make it difficult for hitters to track, and it can sometimes have a slight, unpredictable float or drift.

Notable Eeephus Pitchers:

Rip Sewell: Undoubtedly the most famous practitioner of the Eeephus. He used it so frequently and effectively that it became his signature pitch. He wasn't afraid to throw it in any count, and it drove hitters absolutely wild. Bill "The Spaceman" Lee: Known for his eccentricities and unconventional pitching style, Lee also incorporated a slow, looping pitch that resembled the Eeephus. Mickey O'Neil: A catcher who occasionally pitched, O'Neil was also known to throw an Eeephus-like pitch.

The Eeephus is a testament to the idea that baseball isn't just about throwing hard. It’s about fooling the batter, and there’s arguably no pitch that’s more visually deceptive than a well-executed Eeephus. It’s a pitch that requires a certain kind of pitcher – one with confidence, a good sense of humor, and an understanding that sometimes, the best way to throw heat is to throw… well, not heat at all.

The Nuance of Pitch Speed Measurement

As mentioned earlier, pinpointing the absolute slowest mph in MLB history is tricky because of how pitch speeds are measured. The technology has changed dramatically over time.

Early Baseball (Pre-1970s):

Manual Timing: Often, speeds were estimated or timed manually. This was highly subjective and prone to error. A stopwatch could be used, but accuracy was limited, especially with the human element involved in starting and stopping. No Standardized Technology: There was no universally adopted, precise method for measuring velocity at the pitcher's release point.

The Radar Gun Era (1970s-2000s):

K-Band Radar Guns: The introduction of radar guns brought a more objective measurement. However, these guns typically measured speed at a fixed point (often near home plate) and could be affected by the ball's angle and spin. Variations: Different models of radar guns and varying placement of the gun could lead to slightly different readings.

The Statcast Era (2015-Present):

Multiple Cameras and Sensors: Systems like Statcast use multiple high-speed cameras and optical tracking to capture the ball's trajectory from release to crossing the plate. Release Point Velocity: The most accurate measurements are now taken at the pitcher's release point, providing a truer representation of the ball's initial velocity. Consistency: This technology offers a much higher degree of consistency and accuracy.

Because of these historical measurement differences, a pitch recorded at 70 mph in the 1960s might have been measured differently than a pitch recorded at 70 mph today. This is why discussions about the "slowest" often focus on pitchers and pitch types known for their extremely low velocities, rather than a single definitive record. It's about the *intent* and the *effect* of those slow pitches.

When Slow Becomes Smart: The Strategy Behind the Slaw

The "slaw" – a term sometimes used affectionately for a very slow pitch – is more than just a novelty. For pitchers who master it, it's a crucial part of their arsenal. It’s about understanding the hitter’s mindset and exploiting it.

Consider a hitter who has just seen three consecutive fastballs in the high 90s. Their muscles are tensed, their timing is set for rapid acceleration. When a 75 mph changeup comes in, their body might still be initiating the swing they prepared for the faster pitch. They're essentially swinging against their own momentum.

This isn't about a pitcher lacking skill; it's about a pitcher using their *entire* skill set. A pitcher might have a fastball in the mid-90s but also possess a devastating curveball that drops into the 70s and a changeup that plummets into the high 60s or low 70s. The contrast between these pitches is what makes them effective.

The Anatomy of a Deceptive Pitch Sequence

Imagine this scenario:

Pitch 1: A hitter sees a 97 mph fastball on the outer edge. They might foul it off or take it for a strike. They’re now locked in for high velocity. Pitch 2: The pitcher throws a 78 mph changeup. The hitter, conditioned by the previous pitch, starts their swing early, anticipating a much faster pitch. They might swing wildly and miss, or make very weak contact. Pitch 3: Now, the pitcher might come back with a sharp curveball in the low 80s or even another fastball. The hitter, having been fooled by the changeup, is now off-balance. They might be too hesitant, anticipating another slow pitch, or still trying to recover their timing from the previous miss.

This sequence, reliant on a significant speed differential, can be more effective than just throwing three fastballs down the middle. It plays on the hitter’s expectations and their ability to adjust. The slowest pitches often serve as the "trick" pitch, the one that throws off the hitter’s rhythm and makes them doubt their own eyes.

Personally, I've always found the pitchers who could effectively mix speeds to be the most captivating to watch. They possess an artistry that goes beyond raw power. They’re like magicians on the mound, making the baseball do things that seem impossible, often by simply changing its pace.

Historical Context and Anecdotal Evidence

It’s important to acknowledge that much of the information regarding the absolute slowest pitches comes from historical accounts and anecdotal evidence. Before the widespread adoption of advanced tracking technology, such details were often passed down through word-of-mouth, newspaper clippings, and the memories of players and fans.

Key considerations for historical data:

Subjectivity: Older accounts might be embellished or colored by nostalgia. Limited Scope: Not every pitch thrown was meticulously recorded, especially in earlier eras. Focus on the "Event": Often, slow pitches that are remembered are those that resulted in a significant outcome – a strikeout of a legendary hitter, a bloop single that changed a game, or a hilariously bad swing.

However, even with these limitations, the consistent mention of certain pitchers and pitch types (like the Eeephus) in discussions about slow pitches lends credibility to their existence and impact. These weren't isolated incidents; they were part of a pitcher's repertoire.

Consider the legendary status of pitchers like Rip Sewell. His Eeephus wasn't a one-off stunt; it was a pitch he honed and utilized throughout his career, baffling hitters of his era. While we might not have a precise MPH reading of his slowest ever Eeephus, the consensus is that it was exceptionally slow, often in the 60s.

Why Don't We See More Extremely Slow Pitches Today?

While the art of the slow pitch still exists, the overt "lob" pitches of the past are less common in modern MLB. Several factors contribute to this shift:

The Rise of Analytics: Modern baseball heavily relies on data. Hitters and coaches analyze pitch data to identify patterns and tendencies. While a slow pitch can still be effective, its surprise element is somewhat diminished when hitters have access to detailed pitch tracking. Emphasis on Velocity: There's an undeniable trend towards increased pitcher velocity. Pitchers are stronger, train more effectively, and have better biomechanical understanding. This means the average fastball speed has increased, making the gap between a fastball and an off-speed pitch potentially larger, but also making "trick" slow pitches less necessary for *some* pitchers. Specialization of Roles: Relief pitchers, in particular, are often brought in for high-leverage situations and are expected to bring serious heat. Their role is to overpower hitters, not necessarily to outsmart them with extremely slow pitches. The "Three True Outcomes" Era: With the rise of strikeouts, walks, and home runs, the game has become more about power and less about contact. Extremely slow pitches, while they can induce weak contact, might not fit as neatly into this paradigm as a pitcher trying to generate a swing-and-miss or avoid hard contact entirely. Risk vs. Reward: A very slow pitch, especially if it's not perfectly located, can be a batting practice fastball for a disciplined hitter. The risk of giving up a hittable pitch can outweigh the potential reward for many pitchers who can already throw hard.

However, it's not that these pitches have vanished entirely. Changeups and curveballs are still critical tools for keeping hitters off balance. The *extremes* of the slowest pitches, like the 60 mph Eeephus, are rarer, but the principle of speed differential remains a cornerstone of effective pitching.

Frequently Asked Questions About Slow Pitches in MLB

How can a pitcher effectively throw a very slow pitch without it being hit hard?

The effectiveness of a very slow pitch hinges on several crucial elements, far beyond simply lobbing the ball. It's a strategic weapon that requires mastery of deception, a keen understanding of the hitter, and the ability to execute with precision. Firstly, the pitch must have significant movement. A slow pitch that is straight as an arrow is essentially batting practice. Think of a changeup designed to mimic the arm speed of a fastball but drop off the table at the last moment, or a knuckleball that dances and floats unpredictably. This movement creates doubt and makes the ball harder to track accurately. Secondly, the pitcher's ability to disguise the pitch is paramount. The arm action for the slow pitch should appear as similar as possible to their fastball or other pitches. If the hitter can see the change in arm speed from a mile away, the pitch loses its effectiveness. This requires tremendous discipline and practice from the pitcher. Thirdly, context matters immensely. A slow pitch is often most effective when it’s unexpected. If a hitter has just seen several hard fastballs, a sudden change to a slow, breaking ball can be devastating. Conversely, if a hitter is expecting a slow pitch, it might be easier to hit. Pitchers will often use a slow pitch to set up a subsequent harder pitch, or vice-versa, keeping the hitter guessing. Finally, location is key. Even a slow pitch needs to be placed effectively. A slow, off-speed pitch in the dirt or high and outside might be ineffective. However, a slow pitch that is perfectly located on the corner of the plate, or just below the zone, can be a strike or induce a weak ground ball. It's a delicate balance of speed, movement, disguise, and location that allows a pitcher to succeed with slower offerings.

Why are extremely slow pitches less common in modern MLB compared to previous eras?

The landscape of Major League Baseball has transformed significantly over the decades, and this evolution has directly impacted the prevalence of extremely slow pitches. One of the most significant drivers is the advancement of analytics and scouting. In today's game, virtually every pitch thrown is meticulously recorded and analyzed. Hitters and their coaches have access to vast amounts of data on pitch speeds, trajectories, spin rates, and movement. This makes the element of surprise, which is crucial for an extremely slow pitch, somewhat harder to maintain. When hitters know a pitcher *can* throw a pitch in the 60s or 70s, and have data on its typical location and movement, it’s easier to prepare for it. Furthermore, there has been a pronounced emphasis on velocity across the league. Pitchers are generally throwing harder than ever before, thanks to advancements in training, strength and conditioning, and biomechanical understanding. This means the average fastball velocity has climbed, and with it, the gap between a pitcher's hardest pitch and their slowest pitch has widened, but the need for truly *exceptionally* slow pitches as a primary weapon has diminished for many. Pitchers who can consistently throw 95+ mph have less need to rely on a pitch that might be hittable if not perfectly executed. The role of the relief pitcher has also changed. Modern relievers are often brought in for short, high-impact stints, expected to come in and blow hitters away with overpowering stuff. This often means high velocity fastballs and sharp breaking balls, rather than slower, deceptive pitches. While changeups and other off-speed pitches remain vital, the extreme slowballs of yesteryear, like the infamous Eeephus, are less likely to be a go-to strategy for every pitcher. The game’s increased focus on strikeouts and home runs, often termed the "three true outcomes," also plays a role. While a slow pitch can certainly contribute to strikeouts (by fooling the hitter) or weak contact (preventing hard-hit balls), the modern game often rewards raw power and the ability to generate swing-and-misses with velocity or sharp movement. Ultimately, while the principle of speed deception remains a critical component of pitching, the extreme manifestations of it have become rarer due to shifts in player development, analytical advantages, and strategic game planning.

What is the "Eeephus" pitch and why is it considered one of the slowest?

The "Eeephus" pitch is a type of slow-motion lob pitch that is characterized by its unusually high and looping trajectory towards home plate. It is perhaps the most iconic example of an extremely slow pitch in baseball history. The name itself is shrouded in some mystery, but it's widely believed to have originated in the Negro Leagues, possibly named after a song or a player. The defining characteristic of the Eeephus is its deliberate lack of velocity. While a typical MLB fastball might clock in the high 80s or 90s mph, an Eeephus pitch can often be found in the 60s or low 70s mph range. This drastic difference in speed is what makes it so effective at disrupting a hitter's timing. The pitch doesn't just travel slowly; it travels with a pronounced arc, almost like a moonshot, which can make it difficult to track visually. The hitter's brain is wired to anticipate a certain speed and trajectory based on the pitcher's windup and arm action. When they see a pitch that floats in with such a high arc and minimal velocity, it completely throws off their timing. They might start their swing too early, or freeze entirely, unable to process the unusual sight. While the Eeephus isn't a pitch that typically has sharp, late break like a curveball or slider, its sheer slowness and peculiar trajectory are enough to fool many hitters. The most famous practitioner of the Eeephus was Rip Sewell of the Pittsburgh Pirates in the 1940s and 50s. Sewell famously used it frequently, even in crucial situations, baffling opponents. He demonstrated that with skill and deception, a pitch that seemed almost like a joke could be a legitimate, effective weapon. The Eeephus remains a symbol of the strategic and psychological elements of pitching, proving that sometimes, the slowest approach can be the most effective way to achieve a desired outcome on the baseball field.

Are there any official records for the slowest pitch ever thrown in MLB?

Pinpointing an official, universally recognized record for the absolute slowest mph in MLB history is surprisingly difficult, primarily due to the evolution of pitch tracking technology and historical record-keeping practices. In the early days of baseball, pitch speeds were often estimated or measured manually, which lacked the precision of modern radar systems. There wasn't a standardized method for recording such data across all games and eras. As radar guns became more common in the latter half of the 20th century, measurements became more objective, but these systems still had limitations. They might have measured speed at home plate rather than at the pitcher's release point, and variations in gun placement or model could lead to slight discrepancies. Modern systems like Statcast, implemented widely in MLB starting in 2015, provide highly accurate readings of pitch velocity at the point of release. However, these advanced systems naturally don't have historical data for pitches thrown before their widespread adoption. Therefore, while we have many well-documented instances of pitchers throwing exceptionally slow pitches (often in the 60s or 70s mph range, particularly with pitches like the Eeephus or certain slow curveballs and changeups), there isn't a single, definitive "slowest pitch ever recorded" with the same authority as, say, the fastest pitch. The discussion often centers around pitchers known for their exceptionally slow offerings and the *types* of pitches that would qualify, rather than a specific numbered record. It’s more about the legacy of pitchers who mastered deception and off-speed pitches than a single data point.

Can a pitcher deliberately throw a slow pitch without it being a sign of injury or lack of effort?

Absolutely! The deliberate throwing of a slow pitch, far from being a sign of injury or lack of effort, is often a sophisticated strategic maneuver employed by pitchers who possess exceptional control and a deep understanding of hitting psychology. This is the core of what distinguishes a "junkballer" or a pitcher with a great changeup from someone who simply lacks velocity. For instance, a pitcher with a fastball that sits in the mid-90s might have a changeup that drops down to the high 70s or even low 70s. This significant speed differential is not accidental; it's designed to exploit the hitter's timing. A hitter accustomed to seeing 95 mph fastballs will begin their swing much earlier than they should for a 75 mph pitch. The slow pitch, when executed with proper disguise and location, can cause them to swing too early and miss entirely, or to make very weak contact. Legendary pitchers have built careers on their ability to command their off-speed pitches, using them to keep hitters off balance and guess. The Eeephus pitch, as discussed, is the epitome of this intentional slowness. Pitchers like Rip Sewell didn't throw the Eeephus because they were hurt; they threw it because it was a weapon that, when used judiciously, could be incredibly effective. It’s about deception, changing speeds, and manipulating the hitter’s timing and expectations. A pitcher who can effectively mix in a truly slow pitch demonstrates a high level of craft and an ability to pitch with their brain as much as with their arm. It’s a testament to the fact that baseball is a game of adjustments, and sometimes, the slowest adjustment is the most disruptive.

The Slowest Recorded Pitches: Notable Instances and Data

While a definitive "slowest mph in MLB history" record remains elusive due to the historical measurement challenges, we can look at specific instances and pitchers who are widely recognized for their incredibly slow offerings. These are pitches that, by any standard, would be considered exceptionally slow even in today's game.

Steve Hamilton's "Folly"

Steve Hamilton, a relief pitcher active in the 1960s and 70s, is famous for his devastatingly slow curveball, affectionately nicknamed "The Folly." Reports and anecdotal evidence suggest this pitch would often clock in the low 60s mph range. This was an astonishingly slow speed, especially when contrasted with the typical velocities of the era. Hitters would often prepare for a faster pitch, only to be met with a ball that seemed to crawl towards the plate, breaking so late and so sharply that they were left swinging at air. It was a pitch that defied conventional wisdom and was a primary weapon for Hamilton, particularly against left-handed hitters.

Rip Sewell's Eeephus

As previously discussed, Rip Sewell's Eeephus pitch was legendary. While exact speed readings are scarce and varied, it was consistently described as being extremely slow, often in the 60s or 70s mph. The pitch's effectiveness wasn't just its speed but its high, looping trajectory, which made it incredibly difficult to track. Sewell used it masterfully, sometimes even as a surprise pitch when hitters were expecting his fastball. It became so iconic that it’s a prime example of a pitch that, while incredibly slow, was a strategic success.

Modern Examples (Slower but not the Absolute Slowest)

Even in the Statcast era, while the *absolute* slowest pitches might be rarer due to the emphasis on velocity, we still see incredibly slow off-speed pitches that are vital for pitchers' arsenals. These are usually changeups or slow curveballs designed to exploit timing.

For example, a pitcher might have a fastball in the 95-98 mph range, but their changeup might be in the 80-85 mph range. This 10-15 mph differential is significant. Some pitchers, however, have an even greater gap. It's not uncommon to see pitchers with changeups in the high 70s or even touching 75 mph, which, while not as slow as Hamilton's "Folly," represents a substantial speed difference and is crucial for their success.

Hypothetical Scenario with Modern Data

Let's imagine a pitcher with the following arsenal:

Fastball: 97 mph Slider: 88 mph Changeup: 78 mph

In this scenario, the 78 mph changeup is a highly effective pitch. It's nearly 20 mph slower than the fastball, creating a significant timing challenge for the hitter. While not in the 60s, it represents a masterclass in exploiting speed differential.

The challenge in identifying the "slowest mph" is that records are inconsistent, and the intent behind the pitch matters. A pitcher throwing 70 mph because they're injured is different from a pitcher throwing 70 mph to fool a hitter.

The Future of Slow Pitches in MLB

While the emphasis on velocity in modern baseball is undeniable, the art of the slow pitch is far from dead. The fundamental principles of deception and speed differential remain crucial for pitchers of all styles. As hitters become more attuned to velocity, the contrast provided by a well-executed slow pitch becomes even more potent. We might see fewer overtly "lobbed" pitches, but the strategic use of elite changeups, curveballs with significant speed difference, and perhaps even the occasional resurrected Eeephus will continue to be a vital part of the game. The pitchers who can master this art will always find a way to succeed, regardless of how fast the ball is supposed to be thrown.

Conclusion: Speed is a Tool, Not the Only One

So, what is the slowest mph in MLB history? The answer is less about a single, definitive number and more about the pitchers and the pitches that defied conventional velocity norms. From Steve Hamilton's "Folly" in the low 60s to Rip Sewell's legendary Eeephus, these slow pitches represent a mastery of deception and a deep understanding of the game's psychological elements. While modern baseball leans heavily into velocity, the principle of speed differential remains a cornerstone of pitching effectiveness. These incredibly slow offerings serve as a reminder that in baseball, as in many things, the slowest path can sometimes be the most strategic, and the most effective way to win is not always to throw the hardest, but to throw the smartest.