IronClad Martial Arts

IronClad Martial Arts Real Training. Real Standards. Unbreakable People. Led by Kru John Johnston. 3,000+ trained. Message us to try a class. I look forward to seeing you on the mats.
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Muay Thai, Krav Maga & No-Gi Jiu Jitsu for kids (4+), teens & adults — one standard, two schools: Wilmington, MA & Wells, ME. Martial Arts instructor Kru John Johnston's history is an extensive one. He began his Martial Arts lifestyle when he was 11 years old. He first started in Tang Soo Do under the late Grand Master Richard Byrne in Malden, MA until he was 18 years of age. During this time John gained the knowledge of how to live the life of a Martial Artist. Now for the past 14 years, he has trained and taught at the world famous Sityodtong Academy in Somerville, MA under the owner Kru Mark DelleGrotte, and the late Kru Eric Armington. Throughout these years, John trained extensively in Muay Thai, Brazilian Jiu Jitsu, Boxing, and Wrestling. Going from a student, to a head instructor in Muay Thai, to becoming the lead coach for the Sityodtong Fight Team - Kru John has had years of experience teaching many people the arts as well as bringing fighters to the highest level in MMA (mixed martial arts) so they could fulfill their dreams as a fighter in the UFC. Kru John's path in the Martial Arts has not ended there. He currently trains and holds a blue belt in Brazilian Jiu Jitsu under Professor Julianno (Banana) Coutino, Professor Daniel Gracie, and Professor Mike (loco lobo) Gresh. In March of 2015, John received his Black Belt under Grand Master Bill "Superfoot" Wallace in the Superfoot Systems, and for the past two years has been working extensively in Krav Maga under Sansei Chris Cole, and Master Corey Buzzel. In 2008, John began a journey in competing and fighting in Muay Thai. After only having three fights and going 3-0 with 2 knockouts, both of which were in the first round, he started a career as a Professional MMA fighter on June 17, 2011. Since then he has stayed undefeated going 7-0 in MMA with all 7 fights winning by way of knockout and 6 of them in the first round. Kru John's last fight was in October of 2014 at the age of 44 and he currently holds the CES Heavyweight Championship Belt and was ranked the #1 Heavyweight in the Region. Despite Kru John's extensive background in Professional MMA and Muay Thai fighting, Kru John displays a pleasant manner which lends itself perfectly to bestowing his knowledge onto others including children whom he is always a huge hit with. Having Kru John at the helm, children, teens, and adults will no doubt have an incredible experience learning the IronClad System of Self Defense, and understand how to live a life as a Martial Artist.

09/16/2026

🔥 Power Up Fitness: Why We’re Different

At Power Up Fitness, we’re not a traditional gym — we’re a coaching community built for people who want real results, real support, and real change.

No guessing.
No wandering around trying to make up your own workout.
No feeling lost in a sea of machines.

Here, you’re guided every step of the way.

Our team includes strength & conditioning coaches, Group X certified trainers, personal trainers, and passionate professionals who are dedicated to helping you move better, feel stronger, and stay consistent.

We coach.
We support.
We hold you accountable.
We celebrate your wins — big and small.

If you’re ready for a place where you don’t just “go to the gym,” but grow with a community, Power Up Fitness is where you belong.
Sign up for class:

https://www.supersaas.com/schedule/IroncladGroupX/Power_Up_Fitness_Schedule











🥋 WILMINGTON-AREA PARENTS: YOUR CHILD’S FIRST MARTIAL ARTS WORKSHOP IS FREE!Looking for something fun for your child to ...
09/15/2026

🥋 WILMINGTON-AREA PARENTS: YOUR CHILD’S FIRST MARTIAL ARTS WORKSHOP IS FREE!

Looking for something fun for your child to try this weekend? Join us at IronClad Martial Arts for a FREE kids’ workshop for ages 5–12 from Wilmington and surrounding communities.
If your child is nervous about trying something new, that’s okay. Our coaches guide them step by step, help them feel welcome, and give them small wins to build confidence.

They’ll learn beginner martial arts skills, practice focus, and break a board!

✅ FREE one-hour workshop
✅ FREE uniform
✅ Pizza included
✅ No experience or equipment needed
✅ No sparring—just learning, encouragement, and fun

Choose your day:
📅 Friday, September 18 · 6:30–7:30 PM
📅 Saturday, September 19 · 10:00–11:00 AM
Only 18 spots per workshop.

📲 DM MAT with your child’s age and your preferred day to reserve their FREE spot or use this link https://sparkpages.io/?i=_TPHb

Every confident kid on our floor started with a first class. This could be your child’s.

IronClad Martial Arts
335 Main St, Wilmington, MA
ironcladmartialarts.com

09/14/2026

🔥 Happy Monday, Power Up crew — let’s set the tone for an unstoppable week.

New week. Fresh energy. Clean slate.

Today is your chance to step in with intention, shake off whatever last week held, and decide exactly how you want this one to feel. Momentum doesn’t just show up — you create it the moment you choose to move.

And we’ve got even more to fuel that fire…

💪 Our brand‑new schedule goes into effect next week!

We’ve been working hard behind the scenes to build a lineup that supports your goals, your life, and your consistency.

The finalized schedule will be released in just a few days, so keep an eye out — it’s coming in hot.

Let’s make this Monday the spark that carries you through the week.

Show up. Move with purpose. Build your momentum.

Power Up is with you every step of the way.

❤️🖤

09/13/2026

Consistency
Heart
No quit mentality

Let’s go!

September 14th -20th💥 Teacher Appreciation Week at Power‑Up Fitness! Train for FREE in our Fitness Program! Power Up Fit...
09/13/2026

September 14th -20th

💥 Teacher Appreciation Week at Power‑Up Fitness! Train for FREE in our Fitness Program!

Power Up Fitness
335 Main Street
Wilmington, MA

Teachers give their all every day — now it’s your turn to recharge and train for free!

Join us September 14 through the 20th, for a week of sweat, strength, and celebration.

You inspire minds — we’ll help you power up your body. 🔥

Reserve your class here:

https://www.supersaas.com/schedule/IroncladGroupX/Power_Up_Fitness_Schedule










09/13/2026
IronClad Martial Arts is hiring a Sales & Marketing Manager for our Wilmington location. You're the first person a famil...
09/13/2026

IronClad Martial Arts is hiring a Sales & Marketing Manager for our Wilmington location.

You're the first person a family meets. You show them what's possible, you enroll them, and you get to watch them change over the next year.

WHAT YOU GET
• Salary plus Performance Bonus— strong performers land between $60K and $150K
• Free adult martial arts training
• A team that trains hard and backs each other up

WHAT WE'RE LOOKING FOR
• You love people and you're strong in a conversation
• You've sold before — gym memberships, fitness, retail, B2B, anything with a number to hit
• You show up early and you finish what you start
• Martial arts experience is a plus. We'll teach you everything you need.

INTERVIEWS ARE STARTING THIS WEDNESDAY, SEPTEMBER 16.

Comment INTERVIEW or send us a message and we'll get you the details today.

We Are IronClad — Forged, Unbreakable, and We Never Quit.

September 14th -20th💥 Teacher Appreciation Week at Power‑Up Fitness! Train for FREE Teachers give their all every day — ...
09/11/2026

September 14th -20th

💥 Teacher Appreciation Week at Power‑Up Fitness! Train for FREE

Teachers give their all every day — now it’s your turn to recharge and train for free!

Join us September 14 through the 20th, for a week of sweat, strength, and celebration.

You inspire minds — we’ll help you power up your body. 🔥










🇺🇸 Honoring September 11 — Ironclad Martial Arts & Power-Up FitnessToday, we pause to honor the lives lost, the families...
09/11/2026

🇺🇸 Honoring September 11 — Ironclad Martial Arts & Power-Up Fitness

Today, we pause to honor the lives lost, the families forever changed, and the heroes who stood up with courage on September 11.
We remember the strength, unity, and resilience that carried our nation forward — the same values we strive to build every day on our mats and in our fitness community.

At Ironclad Martial Arts and Power-Up Fitness, we believe in lifting one another up, showing up for each other, and choosing courage even when it’s hard. On this day of remembrance, we reflect on the power of community, compassion, and standing together.

To all who serve, protect, and support our communities — thank you.
To those remembering loved ones — our hearts are with you.
And to our members — thank you for being part of a community rooted in strength, respect, and unity.

We will never forget.

Address

335 Main Street
Wilmington, MA
01887

Opening Hours

Monday 8:30am - 11am
3pm - 9pm
Tuesday 8am - 11am
3pm - 9pm
Wednesday 8am - 11am
3pm - 9pm
Thursday 8am - 11am
3pm - 9pm
Friday 8:30am - 11am
Saturday 8am - 11:30am

Telephone

+19784471225

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