George McQuillan

George Watt McQuillan (May 1, 1885 – March 30, 1940), born in Brooklyn, New York, was a pitcher for the Philadelphia Phillies (1907–10 and 1915–16), Cincinnati Reds (1911), Pittsburgh Pirates (1913–15) and Cleveland Indians (1918).
In 1907 he set one of the longest-lived records in major league history when he pitched 25 innings before giving up the first earned run of his career. Although others have pitched more consecutive innings without an earned run, until July 2008 no one had gone longer without prior major league experience. The record stood for 101 years before being broken by Oakland Athletics reliever Brad Ziegler, who extended the record to 391⁄3 innings.
McQuillan's extraordinary success as a rookie was no fluke: he would go on to post a 1.69 ERA in his first four seasons, comprising more than 800 innings pitched; during those years his Adjusted ERA+ (the ratio of the league's ERA, adjusted to the pitcher's ballpark, to that of...