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With 25 years of professional baseball experience—14 years as a player and 11 years as a pitching coach—we bring extensive expertise to our practice.

We are a Pitching Lab dedicated to biomechanics and pitch development. Our program focuses on helping athletes establish effective throwing routines to improve command and understand strategies for increasing velocity. Additionally, we incorporate shoulder and core strengthening exercises designed to prevent injury and promote proper throwing mechanics.

Mark DiFelice Pitching Lab

By booking with Mark DiFelice Pitching Lab, you agree to these Policies & Terms. Mark DiFelice Pitching Lab may cancel or reschedule a confirmed appointment if needed and will notify you as soon as reasonably possible. Please arrive on time; arriving late may shorten your service or require rescheduling. If you need to cancel or reschedule, please do so as early as possible; late cancellations and no-shows may incur a fee.

My 10U baseball team did pitching lessons with Mark.  He was fantastic with the boys and even signed a few autographs for them.  His instruction was excellent and the improvement of the boys' pitching mechanics was obvious.  We'll be using him for future lessons and I highly recommend him for others.

Mark is extremely knowledgeable and professional. He identified minor needs within the first 15 minutes of my son‘s workout and immediately started making adjustments. My son is so excited to see how far Mark’s expertise can take him! We couldn’t be happier.

Mark is an elite coach and trainer with a unique ability to connect with students of the game at all ages. 

Great start to focus on mechanics.  Thanks, Mark

My son Kieran attended Mark's pitching lab on 12/29/25.  I was very pleased with Mark's timely and insightful pitching feedback.  I have recommended Mark to others on Kieran's Whitpain 11u team.  

Always an amazing lesson with Mark. He is the best pitching coach!

My son loved it, I loved it! Very Professional,  also very welcoming! Coaching top notch. The work was very intentional,  and we left with an action plan to work on at home, as well we, video clips of our sons session/ progress, a diagram and video of home exercises for pitching. Thank you Mark! 

My son's pitching velocity and mechanics have greatly improved with consistent pitching sessions with Coach Mark.  I highly recommend for any pitcher looking to get stronger, improve his mobility, and become an overall more powerful pitcher.

Great experience my son loved it . Mark was awesome with him.

Great instructions. Clearly loves what he does and is very knowledgeable 

I  talked with my son who brought my grandson Frankie for the lesson.  Very encouraged with information provided by Mark, and will follow up with appointments in May

Everything was great should videos and exercises to strengthen his shoulder

Mark is a great resource for my son (10u). He works great with the athletes under his care and would recommend highly. 

Mark did a great job explaining all aspects of pitching and showing my son things he can do on his own to help with his form. Mark cares about the right things 

My son had a great time.  He enjoyed Mark's attention to detail about his mechanics.

Mark is an excellent instructor. He knows pitching mechanics and is very good helping the boys improve their skills. 

Miles had a great time at his first lesson and enjoyed learning from/ working with Mark. 

My son Brandon has been working with Mark for over a year.  Brandon has gained control, velocity, consistency, and confidence through Mark’s lessons.  In addition, he’s learned correct mechanics and different pitches.  Brandon’s success on the mound recently is directly related to his private lessons with Mark.  Mark is awesome and we are thankful for his expertise!  

Mark’s has a wealth of knowledge and experience plus, his teaching skills are top notch. Highly recommend him as a coach for any level of pitcher. 

My son has been getting lessons from Mark for 2 seasons now. In that time he has improved with his mechanics and control. Mark does a great job relating to my son and getting his message across. 

My grandson was so excited!  Mark was incredible and he was so comfortable working with him.  He learned so much in a short period of time. He wants to know if I can take him back every week!  Highly recommend!

Mark is an excellent coach and excels at teaching everything related to pitching including mechanics, arm health and velocity training. 

Easy to schedule a lesson. My son enjoys working with Mark. 

Excellent insight, caring approach and driven towards results.  

Mark is a great coach. His lessons are great. I’ve sent tremendous improvement in my son in a short amount of time

Mark DiFelice

Pitching Instruction 1/2hr. 

Pitching Instruction Hr. 

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