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Mighty River Classic Registration/ Event passes

Quick and easy online registration and event passes are now available! Register for an event, purchase coach and guest passes as well as Warehouse 23 tickets all in one place. Just click the button to begin!


Book your hotel room by October 4th for a special rate . Courtesy of the Hotel Marriott

For assistance please contact Stephany Browning: Telephone: (503)943-3704
Email: stephany.browning@marriott.com

Upcoming Events



My 7-1/2 year old son has been here since he was 6 years old twice a week for an hour every week. The level of dedication and attention is nothing short of amazing. Small classes and one on one time being a smaller school is a plus. Rick is very easy going but strict, which is what I wanted for my son. Teaching my son respect and self confidence seems to be top goals at the school.

I would highly recommend without a a doubt for any parent who is looking for an activity for their kid that pays back so much.
— Teera K.
I have been a student at the Stark Street Academy of Kung Fu for the past 14 years and I am now training to be a student teacher. Sifu Cropper has a deep understanding and appreciation for the art that he teaches and passes onto his students. Sifu Cropper is a strict but compassionate teacher that fosters the talents of each individual student so that they may grow and better themselves in a safe environment. Without a doubt, I would recommend this school to anyone who wants to have a rich and fulfilling martial arts experience in an environment where they are accepted as part of a large martial arts family. The new name of the business is the Rick Cropper Martial Arts Center located at 8040 SE Stark Street Suite B Portland Oregon.
— Enrika C.
By far the best. Sifu Cropper and his staff make sure that each student is up to speed. I have known him for thirty years. we would not want to take our beloved daughters anywhere else for instruction.
— Tim M.
Our family has driven 20 miles, twice a week, over eight years, to study and practice Kajukenbo karate under the kind and compassionate guidance of Sifu Rick Cropper. He’s one of the few seventh degree black belts in this precise martial art. Cropper takes this art seriously, trains his students hard, and teaches them this life skill in an uncompromising fashion with emphasis on sparring, forms and general mental and physical fitness. We’ve encouraged friends and family to study under him as well. If searching for a martial arts academy, look no further.
— William F.

For further Information on class times and other details please contact Professor Rick Cropper at:
Telephone: (360)721-5602

Testimonials Courtesy of Thumbtack.