top of page




Grandmaster C. Jeffery Hardwick


Grandmaster C. Jeffery Hardwick is an 9th Degree Black Belt and current Grandmaster of the Coszacks School of Self-Defense. He has studied Martial Arts under Master Jeffery L. Moore for over 30 years with teaching experience since the age of 15. On the competitive level he has been awarded trophies and medals for accomplishments in Karate tournaments in both Black Belt and under Black Belt competitions and has placed in over 90% of the Black Belt competitions he has entered. He has competed on both the State and Regional levels with a first place award in a regional tournament which earned him honorable mention in "Karate Illustrated" Magazine.

Master Hardwick has personally trained thousands of students, many who have won state, regional and national tournaments. He also has several Black Belt Assistant Instructors to aid in the individual training of students. Master Hardwick would like to extend a warm welcome to all perspective students and hope they will be able to find enjoyment and self-fulfillment in training with him and his assistant instructors.

CURRENTLY-Master Hardwick has been training for over 48 years, having taught three generations of students.  Previously he taught at the YMCA & Ohio University College. He is married to Dena Findeiss Hardwick.  He has three adult children, Chase, Megan and Jenna.  Master Hardwick's full time profession is Managing Partner of the Bryan & Hardwick Funeral Home and has been in the funeral business since 1979. See his professional business website here. Bryan & Hardwick Funeral Home

Sensei James Rinehart


Sensei James Rinehart is a  1st Degree Black Belt and Ranking Master Instructor at the Club. Sensei Rinehart runs the day to day operations of the School & carries on the founding traditions that were instilled by Grand Master Moore & Grand Master Jeff Hardwick. Sensei Rinehart has also competed in many tournaments and has numerous trophies & Awards. 


Coszacks Blackbelts Present & Past

Founder: Grandmaster Jeff Moore (dec)

Grandmaster Jeff Hardwick

Master Butch Morgan

Master Larry Allen (dec)

Master Greg Potts


Nettie Allen Adkins

Helena Bednarzuck

Vince Bednarczuk

Trenton Burrows

Dakota Burtnett

Bob "Bull" Carmichel

Rick Dressler

Mike Emmert

Larry Foster

Bob Hall

Paul Higgins

Mike Hoskinson

Rick Huffine

Luke Kozlowski

Ian Lauer

Bill Lentz

Jennifer Mann

Cole McWhorter

Dave Mohler

Sandee Moore

Chris Paynter

Mary Pfeifer

Lisa Potts

James Rinehart

Doug Ross

Joe Schaumleffel

Brad Seward

Foulon Sheppard

Don Smith

Jordan Smith

Ron Smith

Steven Smith

Tom Tomson

Tim Tracey (dec)

Darrell Uphole

Gregory Williams

Pablo Zamora

James Rinehart.jpg
bottom of page