I just recovered from a tendon injury from over pitching. Currently I am only pitching mid seventies while I try and build up my arm, especially endurance.
I Throw a 4s fastball, slider, and a circle change with a sinker under development. My fastball has slight movement to it and I have very good placement with it. I am a junior in highschool and I expect to be hitting 80 atleast once I fully recover.
I've never relied on speed to strike anyone or get the groundout. I simply out think the batter and have him guessing.