BJJ Black Belt — Jungle BJJ Praha

RAGNAR
ACADEMY

Daniel Holý — black belt, IBJJF European medalist. Full-length instructionals: leg locks, no-gi and the details that decide matches. What I wish I'd had in my hands fifteen years ago.

What the Patreon membership will include:
  • Full-length instructionals — the whole technique, not a 30-second reel
  • Leg locks and no-gi the way I teach them at seminars
  • Entry, control, finish and the most common mistakes — step by step

Membership via Patreon  ·  Leg locks and no-gi  ·  Cancel anytime

Daniel Holý (Ragnar BJJ) holding IBJJF European Championship medals — BJJ black belt leg lock specialist from Prague
IBJJF Europeans
Multiple Medals
500K+ global reach
500K+
Global Community
5
IBJJF Medals
200+
Free techniques on Instagram
10+
Years on the Mats
Getting Started

3 Steps to Join

1

Join the newsletter

The membership opens on Patreon in autumn 2026 at $9.90 a month. I'll announce the exact date in the newsletter — you'll hear it first.

2

Join on Patreon

Once it opens, the membership runs on patreon.com/ragnarbjj. You pay there, you cancel there — no extra app, no sign-up on this site.

3

Train smarter

Watch. Drill. Train. Take the videos straight to the mats — no guessing what to work on next.

In preparation

Patreon membership

Opening autumn 2026
$9.90 / month

Membership isn't open yet — opening autumn 2026. Join the newsletter and you'll hear the date first.

One tier on Patreon (patreon.com/ragnarbjj), monthly billing, cancel anytime. On opening day you get the whole library at once — I'm planning 8–10 full-length videos — and more are added on an ongoing basis.

  • Full-length instructionals — the whole technique, not a 30-second reel
  • Leg locks and no-gi the way I teach them at seminars
  • The whole library from day one, no drip-feeding
  • New videos added on an ongoing basis
Tell me when it opens

Ragnar Monthly

Monthly no-gi newsletter: drills, breakdowns, and what I'm working on. One email, no spam.

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Follow Everywhere

Free content daily. Technique clips, behind the scenes, and competition prep.

Daniel Holý with family — Viking-themed portrait of Ragnar BJJ founder, Jungle BJJ Praha black belt
The Man Behind the Mats

Leg lock details that
change your game.

Daniel Holý is a Brazilian Jiu-Jitsu black belt, IBJJF European Championship medalist, leg lock specialist, and founder of Ragnar Academy.

Promoted to black belt by Fernando Araujo at Jungle BJJ Praha. Grappling coach for Karlos Vémola, Czech MMA champion and Oktagon headliner.

One of the most followed BJJ athletes in Europe with over 500K followers. Built everything from scratch — one mat session, one video, one honest breakdown at a time.

Inside Ragnar Academy: the same approach. No fluff. Just the leg lock details that actually change your game.

Belt
Black Belt
Academy
Jungle BJJ
Specialty
Leg Locks
Sponsor
Manto
Competition Record

Results

IBJJF European No-Gi — Silver (black belt)

Silver at the IBJJF European No-Gi Championship, Master 2 / Super-Heavy. Tapped in the final to an ankle lock that torqued the knee — which is exactly why I teach both attacking and defending the legs.

2024

IBJJF Europe — 3× Silver (brown belt)

Two silvers at the IBJJF European No-Gi Championship (Rome 2022 and 2023) and a gi silver at the IBJJF Master International Europe 2023. Master 2 / Super-Heavy.

2022–2023

IBJJF European No-Gi — Bronze (open class)

Bronze in the open-weight division at the IBJJF European No-Gi Championship, brown belt, Master 2.

2023

ADCC European Trials — Competitor

Represented Czech Republic at the most prestigious submission grappling qualifier in Europe.

2021

Grappling Coach — Karlos Vémola

Grappling preparation for one of the biggest stars in Czech MMA and Oktagon promotion.

Ongoing

Black Belt — Jungle BJJ Praha

Promoted by Fernando Araujo Nascimento (5th degree black belt). One of Jungle BJJ's five black belts.

November 2023
Fear is the thief of our dreams.
— Daniel Holý
Specialization

Leg Lock System

Heel Hook

Inside and outside heel hooks from saddle, 50/50 and outside ashi garami. The highest-percentage finish in modern no-gi grappling.

Toe Hold

IBJJF-legal at brown belt and above. Devastating as a secondary attack when combined with knee bar threats from ashi garami.

Knee Bar

Entries from top, bottom, and transitions. One of the most underrated submissions in modern grappling.

Saddle / Honeyhole

The control position that unlocks the entire leg lock game. Master this position first — everything else flows from here.

50/50 Guard

Offensive 50/50 with heel hook and ankle lock attacks. Not a stalling position — a finishing position.

Outside Ashi

The entry point to the entire leg lock system. Single leg X to outside ashi garami — from guard pull to heel hook finish.

Questions

FAQ

Ragnar Academy is my online BJJ instruction — no-gi grappling and leg locks. The paid videos run as a Patreon membership; this site is the hub: glossary, blog, interview and membership info. It's not a random pile of clips — every video is a whole technique: entry, control, finish and the most common mistakes.

Because random content won't teach you a system. YouTube gives you techniques. Here you get context — why this position leads to this submission, how to enter it from three different situations and what to do when things go wrong. The Instagram reels are a taste; the membership is the whole technique, the way I teach it at seminars.

Through Patreon (patreon.com/ragnarbjj) — in your browser or the Patreon mobile app. No sign-up on this site; you manage and cancel your membership directly on Patreon.

Depends how long you've been training. If you've been on the mats at least 6 months and know the basic positions (guard, side control, mount), the content will make sense right away. Complete newcomers should start with classes at a gym — without live sparring, online technique content has no real effect.

Two hours a week minimum: one for the video (watch + notes), one for drilling at training. The more you apply it live, the faster it sticks. It's not about collecting videos — it's about what you take home from training.

Part of the content (solo drilling, movement patterns, breakdowns) works without a partner. But honestly — grappling without live sparring is like learning to swim on dry land. If you don't have a gym, use the videos as a benchmark for choosing one.

The whole existing library the moment you join — I'm planning 8–10 full-length instructionals (the whole technique, not a reel) — plus new videos on an ongoing basis for as long as you're a member. I'll confirm the exact day-one count and the pace of new videos at launch — I don't promise anything I can't keep.

$9.90 a month — one tier, monthly billing through Patreon, no hidden fees. Patreon shows you the amount in your currency before you confirm. Newsletter subscribers hear the opening date first.

Primarily intermediate to advanced grapplers — blue belts and up who already understand the basic positions. The leg lock system needs some fundamentals. If you've trained regularly for at least 6 months, you'll benefit right away.

The videos are recorded in Czech. Subtitles are in the works — I'll announce which languages are available at launch. BJJ technique names are in English anyway.

The Patreon membership opens in autumn 2026. I'll announce the exact date in the newsletter and on Instagram — better later and complete than early and half-empty.

Yes. The Patreon membership renews monthly and you can cancel anytime directly on Patreon, no fees. Access stays until the end of the paid period.

Payments are processed by Patreon. I'll list the price in USD; what Patreon charges in your currency is shown before you confirm.