Assertion: pitcher | /r/HasProperty | earned run average
Facets:
Source sentences:
text: Will White's 1879 record of 680 innings pitched, Charles Radbourn's 1884 record of 59 wins, and Pud Galvin's 1883 record for 75 games started, but does not recognize Keefe as the pitcher having the all-time lowest single season earned run average.