Best MLB Pitchers of All Time: Top 5 Ranked

Everyone has their Top 5. Whats your top 5 pitchers of all time?

Walter Johnson is arguably the best MLB pitcher of all time based on his combination of dominance, longevity, workload and performance relative to his era. Let us explain...

Our ranking of the top five MLB pitchers of all time is:

1. Walter Johnson

2. Cy Young

3. Roger Clemens

4. Randy Johnson

5. Greg Maddux

There’s no perfect formula for ranking pitchers from completely different generations. A list based only on wins would favour older pitchers. A ranking built around peak performance would push Pedro Martínez and Sandy Koufax much higher.

That’s why this list considers the complete picture: career value, peak dominance, durability, era-adjusted performance, command, strikeouts and postseason impact.

Who Are the Top 5 MLB Pitchers of All Time?

Johnson finished with a record 110 shutouts, while Young remains MLB’s career leader in wins, starts, complete games and innings pitched. Clemens won a record seven Cy Young Awards, Randy Johnson recorded 4,875 strikeouts, and Maddux combined 355 wins with four consecutive Cy Young Awards.

Who Is the Best MLB Pitcher of All Time?

Walter Johnson is our choice as the greatest MLB pitcher of all time.

“The Big Train” finished his 21-year career with 417 wins, a 2.17 ERA, 3,509 strikeouts, 531 complete games and 110 shutouts. His 147 career ERA+ means he prevented earned runs approximately 47 percent better than league average after adjusting for league and ballpark conditions.

Those numbers become even more impressive when you look at the workload behind them. Johnson threw 5,914 innings and completed nearly 80 percent of his career starts.

Cy Young produced more total career value and Roger Clemens dominated stronger modern competition. Pedro Martínez had a better rate-based peak.

Johnson gets the top spot because he gives us the strongest balance of dominance, durability, longevity and performance relative to his era.

What Makes a Pitcher One of the Greatest Ever?

Being one of the best pitchers of all time requires more than one impressive statistic.

Wins can reflect durability and team quality, but they don’t tell us how well a pitcher actually performed. ERA measures run prevention, but scoring conditions have changed dramatically across baseball history. Strikeouts show dominance, yet pitchers can still succeed through movement, command and weak contact.

A fair ranking should consider:

• Career performance

• Peak dominance

• ERA and ERA+

• Workload and durability

• Strikeout and walk performance

• Awards and league leadership

• Postseason success

• Quality of competition

ERA+ is especially useful because it adjusts ERA for league and ballpark conditions. A score of 100 represents league-average performance. A 150 ERA+ means a pitcher performed 50 percent better than the league average at preventing earned runs.

Even ERA+ isn’t a complete answer, though. It doesn’t fully account for differences in workload, training, integration, travel, bullpen usage or the depth of the available talent pool.

That’s why all-time rankings need context—not just a spreadsheet.

Who Was the Most Dominant Pitcher at His Peak?

Pedro Martínez produced the greatest modern pitching peak.

From 1997 through 2000, Martínez won three Cy Young Awards and dominated during one of the most hitter-friendly periods in MLB history.

His 2000 season stands out:

• 1.74 ERA

• 284 strikeouts

• 0.737 WHIP

• 217 innings pitched

That 0.737 WHIP remains the lowest single-season mark among pitchers who qualified for an ERA title.

Martínez doesn’t make our top five because his career workload was lower than the pitchers ahead of him. He threw 2,827⅓ innings, while every pitcher in the top five exceeded 4,100.

But for one season—or even one four-year stretch—Pedro has a serious argument against anyone.

Who Is the Greatest Left-Handed Pitcher of All Time?

Randy Johnson is the greatest left-handed pitcher in MLB history.

Johnson combined elite velocity, an overpowering slider and an unusually difficult release angle. He finished with 303 wins and 4,875 strikeouts, placing him second behind Nolan Ryan on the career strikeout list.

He also won five Cy Young Awards, including four consecutive awards from 1999 through 2002.

Sandy Koufax had a shorter but more concentrated peak. Clayton Kershaw produced better career rate statistics. Warren Spahn recorded more wins.

Johnson ranks first among left-handers because he combined peak dominance with longevity, strikeout ability and sustained performance deep into his career.

Where Does Nolan Ryan Rank All Time?

Nolan Ryan belongs among the ten greatest pitchers of all time, but he falls outside our top five.

Ryan’s records are remarkable:

• 5,714 career strikeouts

• Seven no-hitters

• 324 wins

• 27 MLB seasons

His 5,714 strikeouts remain the most in MLB history, and his seven no-hitters are also an all-time record.

What keeps Ryan outside the top five is command.

He also holds the career record for walks, and his 1.247 WHIP was significantly higher than the marks produced by pitchers such as Walter Johnson, Greg Maddux and Clayton Kershaw.

Ryan may be the greatest pure strikeout pitcher baseball has ever seen. But strikeout totals alone don’t automatically make someone the greatest complete pitcher.

Is Clayton Kershaw a Top-Five Pitcher Ever?

Clayton Kershaw is close, but he finishes just outside our top five.

Kershaw completed his MLB career with:

• 223 wins

• 2.53 ERA

• 154 ERA+

• 3,052 strikeouts

• 1.018 WHIP

• Three Cy Young Awards

• One National League MVP Award

His 2.53 ERA is the lowest among qualified pitchers whose careers began in the Live Ball Era, and his 154 ERA+ places him among the strongest rate-based starting pitchers ever.

The argument against placing him in the top five is workload. Kershaw threw 2,855⅓ innings, well below the career totals of Johnson, Young, Clemens, Randy Johnson and Maddux.

That difference is partly a result of modern pitcher usage. Today’s starters receive more rest, make fewer complete games and are removed earlier from games.

A ranking focused more heavily on peak performance and rate statistics could place Kershaw in the top five. A ranking that gives greater weight to total innings and career value places him just outside it.

Should Roger Clemens Be Included Among the Best Pitchers Ever?

Yes—when the ranking is based on documented on-field performance.

Clemens won a record seven Cy Young Awards and finished with 354 wins, 4,672 strikeouts and a 143 ERA+. He also won the pitching Triple Crown twice and remained an elite starter across multiple generations of hitters.

His legacy is complicated by allegations involving performance-enhancing drugs. That controversy has also affected his Hall of Fame candidacy.

For this ranking, we’ve separated statistical performance from Hall of Fame voting and character considerations.

Readers who exclude players associated with the steroid era could move Randy Johnson and Greg Maddux up one position, with Pedro Martínez entering the top five.

Can Pitchers From Different Eras Be Compared Fairly?

Not perfectly.

A starting pitcher in 1905 worked under completely different conditions from a starter in 2005.

Earlier pitchers:

• Started more often

• Threw more innings

• Completed more games

• Faced different equipment and playing conditions

• Worked before modern bullpen specialisation

• Competed within a smaller and, for many years, segregated talent pool

Modern pitchers face deeper international competition, advanced scouting, pitch tracking, video analysis and hitters trained specifically to handle high velocity.

That’s why raw totals need context. ERA+ helps adjust for the scoring environment, while WAR attempts to estimate total value and workload. Neither statistic removes every difference between eras.

The historical record is also still evolving. In 2024, MLB incorporated available Negro Leagues statistics from 1920 through 1948 into its official records, bringing thousands of previously excluded players into Major League leaderboards.

There’s no calculation that can make every era identical. The fairest method is to use several statistics, recognise their limitations and explain the reasoning behind the ranking.

Greatest MLB Pitchers by Category

Mariano Rivera’s 652 regular-season saves remain the MLB record. He also recorded 42 postseason saves with a 0.70 ERA across 96 playoff appearances.

What Made the Greatest Pitchers So Effective?

The best MLB pitchers of all time didn’t succeed through one universal delivery or one perfect pitch.

Walter Johnson overwhelmed hitters with velocity. Greg Maddux controlled location and movement. Randy Johnson combined an extreme release angle with an upper-90s fastball and high-velocity slider. Pedro Martínez paired explosive fastball characteristics with one of baseball’s most deceptive changeups.

Their styles were different. The underlying traits were surprisingly similar.

Repeatable Mechanics

Elite pitchers consistently recreate the release conditions needed for their pitches to move as intended.

That doesn’t mean every delivery must look identical. It means the pitcher can organise the lower body, trunk and throwing arm well enough to produce reliable timing and direction.

Pitches That Work Together

A strong arsenal isn’t just a collection of good pitches.

The pitches should create uncertainty.

A changeup becomes more effective when it looks like the fastball early in flight. A slider becomes harder to recognise when it begins on a similar path. A sinker plays better when the pitcher can attack a different movement plane.

Great pitchers understand how each pitch affects the hitter’s expectation for the next one.

Command With Purpose

Throwing the ball somewhere inside the strike zone isn’t the same as executing a pitch.

True command means placing a specific pitch in a specific location while creating the intended movement. It also means understanding when that location makes sense within the count and the larger sequence.

Adaptability

Hitters adjust. Bodies change. Velocity fluctuates.

The greatest pitchers evolve instead of trying to preserve the exact same version of themselves forever. They change pitch usage, refine grips, adjust locations and develop new ways to get outs.

Sustainable Performance

A radar-gun peak or dominant bullpen doesn’t define an entire career.

Greatness requires the ability to prepare, compete, recover and repeat performance across a season—and eventually across many seasons.

What Developing Pitchers Can Learn From MLB’s Greatest Arms

Young pitchers should study great MLB pitchers, but they shouldn’t copy them frame by frame.

Randy Johnson’s mechanics fit his 6-foot-10 frame. Maddux’s approach matched his movement profile and command. Pedro’s changeup worked because it played directly off his fastball release and intent.

Those solutions were effective because they fit the individual pitcher.

The better development process is to:

1. Understand your current movement pattern.

2. Identify the pitches that fit your release characteristics.

3. Build command alongside velocity.

4. Develop pitches that complement one another.

5. Increase throwing workload gradually.

6. Track recovery and performance.

7. Adjust the programme when the data changes.

A biomechanics assessment can help identify how a pitcher creates and transfers force. Remote pitching training can provide individual programming and ongoing feedback, while in-person pitching training allows for direct mechanical evaluation.

The goal isn’t to make every athlete throw like Walter Johnson, Randy Johnson or Greg Maddux.

It’s to determine what that individual pitcher does well—and build a sustainable approach around it.

Greatness Is More Than One Statistic

Walter Johnson is our choice as the best MLB pitcher of all time.

But the answer changes depending on what you value most.

Cy Young produced the greatest workload. Roger Clemens built one of the strongest modern career résumés. Randy Johnson was the most overpowering left-hander. Greg Maddux showed what elite command and sequencing could accomplish. Pedro Martínez may have reached the highest modern peak.

That’s what makes the debate worth having.

Pitching greatness can come from velocity, movement, command, deception, durability or adaptation. The very best pitchers combine several of those qualities—and sustain them long enough to change how baseball remembers them.