Ed Stratton, the youngest player ever to play in the history of MLB, had a 0-3 win-loss record and an ERA of 8.33.
Having been born in 1858 (exact date unknown), Ed Stratton is the youngest player ever to play in the history of Major League Baseball, having debuted at most 15 years, 133 days of age. Ed Stratton 0-3 8.33 
