Career
He would play for the Cleveland Indians, Philadelphia Athletics, Boston Braves and Cincinnati Reds. Best known for his part in the only double no hitter in major league history. Kopf led off the 10th inning with a line drive single, breaking up a full 9 innings without a hit for either team
He later scored on a single by Jim Thorpe.
He was the brother of football coach Herbert M. Kopf.