Greatest Pitchers in Baseball History

Walter Johnson

The 'Big Train' terrorized dead-ball era hitters with a fastball nobody could see, racking up 110 shutouts, a record that will likely never fall. He anchored the Washington Senators for two decades and remains the gold standard for pure, sustained dominance from the mound.

Career Wins: 417Career ERA: 2.17Career Strikeouts: 3,509Career WAR: 165Active Years: 1907-1927

added by IJRin 4 rankings

Cy Young

The namesake of the sport's top pitching award threw more innings and won more games than anyone in history, a record so untouchable it's treated as a relic of a different game. His sheer durability across 22 seasons set the bar every pitcher since has been measured against.

Career Wins: 511Career ERA: 2.63Career Strikeouts: 2,803Career WAR: 163Active Years: 1890-1911

added by IJRin 2 rankings

Randy Johnson

The 'Big Unit' turned a 6'10" frame and a slider that hitters called unfair into 4,875 strikeouts, second all-time. His 2001 World Series co-MVP run with Arizona, capped by a relief win the day after starting, is one of the great postseason pitching feats ever.

Career Wins: 303Career ERA: 3.29Career Strikeouts: 4,875Career WAR: 101Active Years: 1988-2009

added by IJRin 5 rankings

Roger Clemens

'The Rocket' won a record seven Cy Young Awards spanning three decades, striking out 20 batters in a game twice, a decade apart. His legacy is forever tangled with PED allegations, but the raw numbers argue for a top-five all-time case.

Career Wins: 354Career ERA: 3.12Career Strikeouts: 4,672Career WAR: 139Active Years: 1984-2007

added by IJRin 2 rankingsRoger Clemens

Greg Maddux

Maddux proved you didn't need a 100-mph fastball to dominate, painting corners with surgical precision to win four straight Cy Youngs in the 1990s. His 1994-95 stretch, with ERAs under 1.80 amid the steroid era's offensive explosion, is arguably the most statistically absurd peak

Career Wins: 355Career ERA: 3.16Career Strikeouts: 3,371Career WAR: 106Active Years: 1986-2008

added by IJRin 3 rankingsGreg Maddux

Pedro Martinez

At his 1999-2000 peak, Pedro posted a 1.74 ERA in an era of juiced offense, a gap over league average statistically unmatched by any starter ever. Undersized and overpowering, he made the Fenway mound must-see theater every fifth day for Boston.

Career Wins: 219Career ERA: 2.93Career Strikeouts: 3,154Career WAR: 86Active Years: 1992-2009

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Christy Mathewson

The Giants' gentleman ace mastered the 'fadeaway' screwball and threw three shutouts in the 1905 World Series alone, a feat of postseason command still unmatched. He gave baseball a respectable, college-educated face during its rougher early decades.

Career Wins: 373Career ERA: 2.13Career Strikeouts: 2,507Career WAR: 103Active Years: 1900-1916

added by IJRChristy Mathewson

Lefty Grove

Grove led the American League in ERA nine times, an all-time record, powering through blistering velocity before reinventing himself as a control artist late in his career. His .680 career winning percentage remains the best of any 300-game winner.

Career Wins: 300Career ERA: 3.06Career Strikeouts: 2,266Career WAR: 113Active Years: 1925-1941

added by IJRLefty Grove

Bob Gibson

In 1968's 'Year of the Pitcher,' Gibson posted a jaw-dropping 1.12 ERA, so dominant MLB lowered the mound the following season. His intimidating glare and three World Series rings with St. Louis cemented him as the ultimate big-game competitor.

Career Wins: 251Career ERA: 2.91Career Strikeouts: 3,117Career WAR: 89Active Years: 1959-1975

added by IJR

Tom Seaver

'Tom Terrific' single-handedly legitimized the lowly Mets, leading the 1969 'Miracle Mets' to a shocking championship. Renowned for his textbook drop-and-drive mechanics, he became the model every pitching coach used to teach the craft for a generation.

Career Wins: 311Career ERA: 2.86Career Strikeouts: 3,640Career WAR: 110Active Years: 1967-1986

added by IJRTom Seaver

Sandy Koufax

Koufax burned brighter than anyone in history for a five-year stretch, throwing four no-hitters including a perfect game before arthritis forced retirement at just 30. What he lacked in longevity he made up for with maybe the single greatest peak any pitcher has produced.

Career Wins: 165Career ERA: 2.76Career Strikeouts: 2,396Career WAR: 49Active Years: 1955-1966

added by IJRin 3 rankingsSandy Koufax

Nolan Ryan

Ryan's fastball and sheer stubbornness produced a record seven no-hitters and an unfathomable 5,714 strikeouts, numbers no one has come remotely close to since. He pitched effectively into his mid-40s, a testament to freakish durability matched with pure stuff.

Career Wins: 324Career ERA: 3.19Career Strikeouts: 5,714Career WAR: 81Active Years: 1966-1993

added by IJRin 6 rankingsNolan Ryan

Warren Spahn

The winningest left-hander in history, Spahn lost four seasons to World War II combat yet still compiled 363 wins, suggesting a Hall of Fame case even richer had he pitched uninterrupted. He remained a workhorse ace for the Braves well into his 40s.

Career Wins: 363Career ERA: 3.09Career Strikeouts: 2,583Career WAR: 101Active Years: 1942-1965

added by IJRWarren Spahn

Steve Carlton

'Lefty' won 27 games for a last-place 1972 Phillies team, accounting for nearly half his club's total victories that season, one of the most singularly dominant campaigns ever. His devastating slider and four Cy Young Awards make him a fixture on every all-time list.

Career Wins: 329Career ERA: 3.22Career Strikeouts: 4,136Career WAR: 90Active Years: 1965-1988

added by IJRSteve Carlton

Bob Feller

'Rapid Robert' was already a strikeout sensation as a teenager before losing nearly four prime years to Navy service in World War II. Even with that gap, he threw three no-hitters and remained Cleveland's ace for two decades.

Career Wins: 266Career ERA: 3.25Career Strikeouts: 2,581Career WAR: 65Active Years: 1936-1956

added by IJRin 2 rankingsBob Feller

Justin Verlander

Verlander has spanned two decades of dominance, from his 2011 unanimous MVP/Cy Young season with Detroit to a late-career Astros title and continued Cy Young contention into his 40s. His fastball's late life, even deep into his career, defies typical pitcher aging curves.

Career Wins: 262Career ERA: 3.24Career Strikeouts: 3,400Career WAR: 81Active Years: 2005-present

added by IJRin 2 rankingsJustin Verlander

Clayton Kershaw

Kershaw's low-to-mid 2 ERA seasons throughout the 2010s, punctuated by a hellacious curveball, made him the most feared regular-season starter of his generation. Postseason struggles dogged his early reputation, but a 2020 championship with the Dodgers settled the argument for ma

Career Wins: 210Career ERA: 2.48Career Strikeouts: 3,000Career WAR: 78Active Years: 2008-present

added by IJRin 2 rankingsClayton Kershaw

Grover Cleveland Alexander

'Old Pete' won 30 or more games three straight seasons for the Phillies before returning from WWI combat, shell-shocked, to keep pitching at an elite level. His legendary bases-loaded strikeout of Tony Lazzeri in the 1926 World Series is one of baseball's iconic clutch moments.

Career Wins: 373Career ERA: 2.56Career Strikeouts: 2,198Career WAR: 119Active Years: 1911-1930

added by IJRGrover Cleveland Alexander