List of Major League Baseball annual ERA leaders

Tommy Bond won the triple crown in 1877, leading the National League in wins, strikeouts, and ERA.
Christy Mathewson's career ERA of 2.13 is eighth on the all-time list; he led the National League in ERA five times during his career.
Grover Cleveland Alexander won the National League ERA title four times with two different teams (the Philadelphia Phillies and the Chicago Cubs).
Mordecai "Three-Finger" Brown led the league in ERA in 1906 and finished second three times.
Amos Rusie led the National League in ERA in 1894 and 1897, and finished second to Ted Breitenstein in 1893.
Sandy Koufax' five consecutive seasons leading the National League in ERA is a Major League Baseball record.
Jake Peavy's 2007 ERA of 2.54 led all National League pitchers.
Johan Santana won the ERA title in his first National League season after eight years with the Minnesota Twins.
Chris Carpenter had the lowest ERA in the National League in 2009.
Clayton Kershaw is the first pitcher in history to lead MLB in ERA for 4 consecutive years (2011–2014).
Addie Joss led the American League in ERA in 1904 and 1908.
In addition to leading the American League in ERA five times in his career and winning three triple crowns, Walter Johnson was one of the five charter members of the Baseball Hall of Fame.
"Smoky" Joe Wood won 15 games in 1915 when he won the ERA title; he is one of thirteen pitchers who have won 30 games in a single season since 1900.
Babe Ruth led the league in ERA in 1916; he began his Major League Baseball career as a pitcher with the Boston Red Sox before converting to the outfield.
Roger Clemens' seven ERA championships are the second-most by any player in Major League Baseball history, behind Lefty Grove's nine.
Pedro Martínez won five ERA titles across both leagues; his 2000 margin of victory over Clemens for the ERA title is the largest in Major League Baseball history.
John Lackey's 3.01 ERA in 2007 led the American League.
Cliff Lee won the Cy Young Award in 2008 in addition to the ERA title.
Zack Greinke, pitching for the Kansas City Royals, became the second consecutive pitcher to win the Cy Young Award and lead the American League in ERA in the same season.

Statistic used to evaluate pitchers, calculated as the mean of earned runs given up by a pitcher per nine innings pitched.

- List of Major League Baseball annual ERA leaders

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Clayton Kershaw

American professional baseball pitcher for the Los Angeles Dodgers of Major League Baseball (MLB).

Kershaw with the Los Angeles Dodgers in 2015
Kershaw at spring training in 2008
Kershaw won numerous awards for his 2011 campaign
Kershaw during his 20th victory in 2014
Kershaw with the Dodgers in 2015
Kershaw delivers a pitch during Game 6 of the 2016 NLCS against the Chicago Cubs
Example of Kershaw's stride and deception
Kershaw (far left) with Joe Biden, Kamala Harris and the Dodgers at the White House in 2021

He has led MLB in ERA five times, and was the first major league pitcher to do so in four consecutive years (2011–2014).

Dave Stieb

Former Major League Baseball right-handed starting pitcher for the Toronto Blue Jays.

Dave Stieb pitching in 1985
Dave Stieb's name is honored by the Toronto Blue Jays in the Rogers Centre.

AL ERA leader (1985)

Diego Seguí

Cuban former professional baseball player.

Diego Seguí in 1969
Seguí with the Hawaii Islanders in 1961

Seguí was a forkball specialist who was the 1970 American League ERA leader.

Carlos Silva (baseball)

Venezuelan former professional baseball pitcher, who played in Major League Baseball (MLB) for the Philadelphia Phillies (–), Minnesota Twins (–), Seattle Mariners (–), and Chicago Cubs.

Silva with the Minnesota Twins.
Silva with the Seattle Mariners in.
Silva pitching for the Trenton Thunder, Double-A affiliates of the New York Yankees, in.

These two seasons make up only 15 full all-time seasons in which a pitcher qualifies for the ERA title while giving up more home runs than walks.

John Lackey

American former professional baseball starting pitcher who played in Major League Baseball from 2002 through 2017 for the Los Angeles Angels of Anaheim, Boston Red Sox, St. Louis Cardinals and Chicago Cubs.

Lackey with the Chicago Cubs in 2016
Lackey pitching for the Los Angeles Angels of Anaheim in 2006
Lackey on April 18,
Lackey with the Boston Red Sox in 2011
Lackey pitching for the St. Louis Cardinals in 2015
Lackey pitching for the Chicago Cubs in 2016

Selected to the MLB All-Star Game in 2007, he won that year's American League (AL) earned run average (ERA) title.

Dizzy Trout

American professional baseball player.

The two-time All-Star player was the American League wins leader in 1943 and, was the league ERA leader in 1944.

Hank Aguirre

American professional baseball player and business entrepreneur.

Aguirre in 1969
Aguirre, circa 1966

He played in Major League Baseball (MLB) as a left-handed pitcher from 1955 to 1970, most prominently for the Detroit Tigers where he was a two-time All-Star player and, was the American League ERA leader in 1962.

Monte Pearson

American baseball pitcher who played ten seasons in Major League Baseball (MLB).

Pearson was the first pitcher to throw a no-hitter at the original Yankee Stadium.

He continued to pitch well in the majors and finished the season with a 10–5 record; his 2.33 ERA was the lowest in the American League (AL) that year and although he pitched only 135 1⁄3 innings, he is recognized as the AL ERA champion by

Houston Astros award winners and league leaders

List of award winners and league leaders for the Houston Astros, an American professional baseball team based in Houston.

Two players have won an annual batting championship, while eight pitchers have led the league in earned run average (ERA).

Jake Peavy

American former professional baseball pitcher.

Peavy with the Giants in 2015
Peavy pitching for the San Diego Padres in 2007
Peavy with Michael Mullen, 17th Chairman of the Joint Chiefs of Staff

NL ERA Champion (2004, 2007)