How To Increase Pitching Velocity

Maximizing pitching velocity requires not only good pitching mechanics but also the strength and flexibility to perform those mechanics well/maximally.

You should be conditioning the arm/shoulder, and strengthening the core (including the low back) and legs. You also need to be working on flexibility in areas like the hamstrings, core (including the low back), and upper back/scaps (think pinching the shoulder blades together). Learn more about pitching workouts here.