- Immediate Improvements -


Elite Performance Training

Hit Harder, Throw Faster, Kick Further, Jump Higher & Prevent Injuries



  • LIVE individual training with World-Class Instructors
  • LIVE FEEDBACK to improve technique, performance & prevent injuries
  • Get Better, Faster

Schedule Training

PC360 Online Coaches


  • PC360 Founder and Master Coach for All Sports (Baseball, Football, Disc-Golf and Golf, Lacrosse, Soccer, Softball, Tennis, Track & Field Throwing, Volleyball).
  • $79/30-min session.
  • National Director of Training for 12 Rehabilitation Centers for Nation's Largest Spine Center
  • Published Author: 1) Spine & Back Care Books & Articles, 2) Contributing Author Book: Back In Shape, 3) Consumer Guide Book: 50 Ways To Reduce Back Pain, 4) Articles on Back Strength in various magazines such as Shape and others.
  • Injury Prevention Consultant to fortune 500 companies such as General Motors, Shell, ExxonMobil, Texas Instruments, Target and others.
  • Strength & Conditioning and Power Hitting Consultant for Division I, II and Junior College NCAA Volleyball Programs, Front Range Volleyball Club, Northern Lights, Amarillo Elite.
  • Trained Club, Collegiate, Olympic & Professional Athletes, including State, National, & World Champions. Sports include: Baseball, Softball, Golf, Tennis, Hockey, Volleyball, Lacrosse, Football, Track & Field and others for over 20 years.
  • Developed Arm, Bat, Club Head, Stick and Racquet Speed & Vertical Jump Programs for Baseball, Softball, Golf, Lacrosse, Tennis, Hockey, Volleyball and others.
  • Has Trained Thousands of Explosive Athletes, from Youth to Professionals, including State, National & World Champions.

Schedule with Billy


"Since the stay at home order and all of the challenges of COVID-19, it has been very difficult to stay active and continue growing my skills as a young athlete. The progression and strength that I have gotten through these few weeks of training are phenomenal. The coaches are top of the line from across the country, who have either experienced and gone through pro volleyball, or have trained the best of the best athletes.


"The Powercore 360 sessions are a standout from any training sessions our daughter has ever participated in. The preparation and coaching she has gotten this far from these clinics has propelled her from being a good athlete to a standout athlete. The results are phenomenal!


"Thank you for providing training during our stay home time. My daughter has been very engaged and motivated, setting an alarm every day to get up and exercise all on her own. Your guidance, Physical Therapy & Injury Prevention information and hearing from a professional player has really motivated her to work towards her goals."


Improve Power & Speed

    See immediate improvements in skills and mechanics through our proven High-Level PC360 training.

Reduce Injury Risk

Re-adjust their mechanics to avoid common issues (shoulder, back) and common sports injuries (knees, ACL, ankles).

Strengthen Weaknesses

      Using our state of the art technology we will analyze their current skills and noticeably improve their areas of weakness to make them stronger, faster and more powerful, quickly.

Boost Confidence

      By stepping up their game and giving more support to their teammates, they will play stronger and feel more confident in all aspects.

Need More Information


Email Coach Billy at - billy@powercore360.com


or call 970-556-0435

  • A PC360 Master Coach for Volleyball Power Hitting
  • $69/30-min session & $129/60-min session.
  • A graduate of the University of Iowa College of Medicine, with a Masters of Physical Therapy. She has been in practice for over 20 years with specializations, in Manual Osteopathic Medicine, Myofascial Release, Functional Mechanics of Movement, Certified Strength and Conditioning, Pilates Reformer and Apparatus Certification, and Pediatric Orthopedics.
  • She is the owner of Prime Athletics, a company whose focus is to train, educate and empower young female athletes from ages 8-18 years of age. She is the Director of Athlete Development and Injury Prevention at ClevPRIME Volleyball Club.
  • She has spent the last 4 years as the 11-1 National team head coach at AVC, qualifying her team in 2018 (the first year the 11’s age group was invited to GJNC). Kelly Fieseler is recognized locally and nationally as a leader in developing techniques and coaching methods for the 13 and under age group.
  • Kelly has played an integral role in rehabbing many local players and getting them back on the court healthy and ready to play for their respective grade schools, high schools and colleges.

Schedule with Kelly