In MLB, 1.22 by the 1876 St. Louis Brown Stockings of the National League.
Whitey Ford was one of the greatest pitchers of all time. Among pitchers with at least 300 career decisions, Ford ranks first with a winning percentage of .690, the all-time highest percentage in modern baseball history. Ford's 2.75 earned run average is the lowest among starting pitchers whose careers began after the advent of the Live Ball era in 1920.
his era does not exist.
The man on the Yankees with the lowest ERA ever is Spud Chandler in 1943. He had a 1.64 ERA.
Yes, he was considered one of the best lefthanded pitchers, if not THE best, in the American League. He won 23 games in 1916 and 24 games in 1917 and led the AL in ERA in 1916 at 1.75. Babe's record as a Red Sox pitcher was 89-46 with a 2.19 ERA. He pitched in 2 World Series (1916, 1918) for the Red Sox and had a record of 3-0 with a 0.87 ERA. Ruth still holds the MLB record for longest complete game in World Series history ... a 14 inning, 6 hit, one run allowed effort against the Brooklyn Robins in Game 2 of the 1916 World Series.
Tim Keefe of the 1880 Troy Trojans had a 0.86 ERA in 105 innings and is generally considered as having the lowest ERA in an MLB season as the 1880 season was only 84 games long. Since 1900, the lowest ERA belongs to Dutch Leonard of the 1914 Boston Red Sox at 0.96. He had a 19-5 record and threw 224 2/3 innings.
It's no surprise that the best career ERAs belong to pitchers who played during the so-called "dead ball era". Ed Walsh had a career ERA of 1.82, the lowest of all pitchers with a minimum of 1000 innings pitched; he played from 1904 to 1917. Addie Joss had a career ERA of 1.89 compiled from 1902 to 1910; he is the only other major league pitcher with a career ERA below 2.00 (with at least 1000 IP).
ERA is known as earned run average, a stat used for pitchers. The lower the number, the better he is.
5.14
Seaver Gooden Friend
There are several ways that Walter Johnson was influential in baseball history. He was one of the first power pitchers of his era. He won 417 games which is the 2nd highest pitcher in history (after Cy Young's 511 winning games)
Mariano Rivera's lowest ERA in a single season was 1.38 in 2005.