Please Note Our COVID-19 Return Policy



Billy Glisan - 9-Hour Clinics Only

  • Billy is the founder & owner of Powercore 360.

He has trained volleyball athletes for the past 21 years, from club to professionals and has worked with numerous Division 1 athletes, coaches & programs. Billy developed the Powercore 360 training products and Volleyball Power Hitting Programs & Clinics.


Jillian Humphrey - Lead Coach Denver Only

  • AVCA All-American & NCAA All-Conference First Team

Jillian was a standout player at Rice University where she was named All-Conference USA Freshman Team, selected as Newcomer of the year, was selected to the All-Conference First Team, and earned AVCA All-American honors.

She finished her career ranked third all-time in sets played, third in career block/assists, fourth in blocks per set, and 13th in career kills. Jillian has coached Varsity High School volleyball for 2 years and is coming up on her fifth year of coaching club volleyball.

Register Below for 9-Hour Clinics


These clinics only allow 20 athletes maximum...they will fill up quickly!

Followup Training Options After Introductory Session

Sessions are 90 minutes

(for any pack or session)

Yearly Package

24 Total Sessions

*$83.25 billed per month

$41 per session

8 Pack

8 Total Sessions

$399 per 8 sessions

$50 per session

Single Session

1 Session

$65 Single Session