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Ryan Gemeinhardt 10th Planet Black Belt promotion.

Ryan Gemeinhardt 10th Planet Black Belt promotion.

From 10th Planet Newark Ohio

June 25, 2025

Ryan becomes 10th planet Newarks FIRST Black Belt!

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10th Planet Newark Ohio

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It's a mess, I know.

My goal is to build the most comprehensive BJJ encyclopedia anywhere — but good, accurate data is genuinely hard to come by. Records, gyms, belts and nationalities are pieced together from public and community sources, so some of it is incomplete, outdated, or flat-out wrong.

That's where you come in. If you spot something off, tell me and I'll fix it — every correction makes this better for everyone. This website wouldn't be possible without the community.