Contact Us National Karate - Academy of Martial Arts


Central Park Square
1422 Mainstreet
Hopkins, MN 55343
United States
School Owner: Mr. Jeff Sidner, 6th Degree Black Belt
School Manager/Head Instructor: Mr. Barry Maxwell, 3rd Degree Black Belt
Instructors: Mr. Tim Fruth, 3rd Degree Black Belt
Mr. Justin Wilson, 2nd Degree Black Belt
Mr. Matt Larson, 1st Degree Black Belt
Office Manager: Ms. Tammy Goodwater.
About Hopkins National Karate

Since 1973, the National Karate Academy has been dedicated to helping men, women and children discover the benefits of martial arts training.

Physical strength, flexibility and weight control are developed through high repetition natural body exercises.

Mental confidence is achieved from time-tested & effective self-defense skill.

NK training teaches respect, self-discipline and perseverance.

NK’s black belt professional instructors are highly trained and dedicated to help all students achieve their life goals.

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About Mr. Jeff Sidner

Jeff Sidner began his martial arts training in 1989. After trying several schools, he found the Maplewood National Karate School in 1992 and immediately knew he’d found his martial arts home. He was promoted to 1st Degree Black Belt in 1995 and currently holds the rank of 6th Degree Black Belt.


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23 hours ago

Hopkins National Karate


We have received permission to start doing outdoor classes (weather permitting)! In person and Zoom classes will follow the new schedule posted previously. (Private message or email the school for more information).

We will be adhering to social distancing (6 feet apart) guidelines and students will need to wear masks (as well as following a formal health and safety regimen).

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Getting ready for classes again (JUNE 1)!

Step 1 - New Schedule! (ZOOM Classes for now, face-to-face once permitted)

While we are not sure when we will be permitted to open for in-school classes, we have been preparing for the safety and well being of our students, our staff, and our families.

New student and instructor procedures that conform to health organization guidelines have been developed and are being implemented.

To accommodate class size, social distancing, and between class cleaning/sanitizing, we have updated our class schedule. Below is our overall schedule. Simplified schedules by age and belt are also posted here.

Zoom Meeting information has been distributed to our students via email, Remind, and our App. Please contact the office for more information.
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Hello Everyone, in light of the holiday there will be no ZOOM classes today. We will have Wednesday and Friday classes and will let you know once we get the June schedule put together. Enjoy the holiday and Thank You to all those who have served and continue to serve!! ... See MoreSee Less

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NK Masks now available for $10!! Be safe AND represent your school 👊🏾 Email your order to the school and we will arrange either a pickup time or delivery. ... See MoreSee Less

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Hot off the press! Order yours today!
$25- Sm, Med, Lg. XL, XXL
$27-XXL ( cost includes shipping)
Send your name, phone #, size,qty,and address to
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