Walter Johnson holds the American League record for most twenty (20) win seasons by a right-handed pitcher with twelve (12).
Did you know that Lefty Grove holds the American League record for most twenty (20) win seasons by a left-handed pitcher with eight (8)?
In 1911, Vean Gregg entered the big leagues and won twenty-three (23) games. He won more than twenty (20) the next two (2) consecutive seasons setting the American League record for consecutive twenty (20) win seasons from the start of a career with three.