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Inner Strength Martial Arts
Duluth, Minnesota
Open Mat Locator

Browse-first BJJ event discovery focused on helping practitioners find nearby open mats quickly and helping gyms publish clearly.

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About Inner Strength Martial Arts

At Inner Strength Martial Arts, we provide unparalleled martial arts training aimed at building skills, confidence, and a sense of community.

Head Instructor

PM

Professor Robert Mrotek

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(920) 475-7022@innerstrengthmaWebsiteClass schedule

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Last updated Aug 10, 2026

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