What are the opening hours?

Monday 9am - 10am 5pm - 8:30pm Tuesday 9am - 10am 5pm - 8:30pm Wednesday 9am - 10am 5pm - 8:30pm Thursday 9am - 10am 5pm - 8:30pm Friday 9am - 10am 5pm - 8:30pm Saturday 10am - 1pm

MMA Underground

Directions Website Contact the business

MMA, Kettlebells, and full-body conditioning MMA UNDERGROUND INC. Along with kettlebell and Xtreme Cage Fighter Workout classes
(498)

is a training ground and fitness facilty for students who want to get into the best possible physical shape. The center is helmed by head coach Oscar Olivares Sensei, who brings with him a long list of achievements and venerable lineages in both stand-up fighting and ground fighting. Oscar Sensei believes that anyone can achieve their fitness goals, be they weight loss, muscle gain, or competitive fighting readiness, if the drive to succeed is there. So, he fuel this drive in a spacious Mixed Martial Arts facility, where clients will find a padded floor, hanging bags, and dummies waiting to punched, kicked, and jabbed during group classes or personal training sessions.

11/06/2026

4. THE MASTER'S PATH

The Master's Path is a test of the soul. Build the warrior's mind and remember: DISCIPLINE BEATS MOTIVATION. Feelings fade, but discipline carries you forward.

Master your fundamentals. Timing beats strength, and power is useless when your opponent is no longer there.

🥊 BOXING: Keep your eyes open. The punch that knocks you out is the one you never saw coming.

🥋 MUAY THAI: Relax, flow like water, and strike without unnecessary tension.

🤼 WRESTLING: Never accept a bad position. Fight for leverage and refuse to be broken.

⚔️ JU-JUTSU: When trapped, control your panic. Clarity is the key to survival and escape.

🔥 CONDITIONING: Build endurance and mobility. A rigid fighter is a brittle fighter.

🥋 SPARRING: Leave your ego outside. Train to improve, not to impress.

🏆 COMPETITION: Enter with a plan. Execute under pressure and adapt.

DEFEAT: Blame nobody. Take responsibility, learn, and return stronger.

VICTORY: Stay humble. Pride blinds, and the mats always humble the arrogant.

KARATE: Study the old masters. Respect tradition. Look backward to move forward.

Ultimately, a master's greatness is measured not by how many fighters he defeats, but by how many warriors he builds.

THE MASTER'S PATH IS NOT ABOUT BECOMING UNBEATABLE. IT IS ABOUT BECOMING UNBREAKABLE IN CHARACTER.

Train your body. Sharpen your mind. Discipline your ego. Strengthen your character.

🥋 SENSEI SAYS: THE REAL BLACK BELT IS WORN IN THE HEART.

10/26/2026

🥋 SENSEI SAYS: THE WISDOM OF A BEGINNER 🥋

A true martial artist never believes they know everything.

The moment you think you have nothing left to learn, you have already stopped growing. Your ego becomes your greatest opponent, and your pride becomes the wall standing between you and your potential.

Be like the sponge, not the brick.

The brick resists the water, allowing nothing to pe*****te its surface. The sponge remains open, absorbing what comes its way. Be willing to listen, to question, to make mistakes, and to learn from those who have walked the path before you.

Your rank does not define your wisdom. Your willingness to keep learning does.

You can be a black belt and still be a beginner in many things. You can be a champion and still have weaknesses to overcome. You can teach others and still have lessons left to learn yourself.

This is the way of the warrior: train your body, sharpen your mind, humble your ego, and strengthen your character.

Never let yesterday's achievements convince you that tomorrow has nothing more to teach you.

The moment you stop learning is the moment you stop growing.

Stay humble. Stay curious. Stay hungry to improve.

🥋 Sensei Says: Enter the dojo with the mind of a beginner, train with the heart of a warrior, and leave with the wisdom to know that your journey is never finished.

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10/24/2026

MMA UNDERGROUND SATURDAY SPARRING 🥊

10/23/2026

MMA UNDERGROUND THURSDAY ROLLING🥋

Address

835 Virginia Road Ste C
Crystal Lake, IL
60014

Opening Hours

Monday	9am - 10am
	5pm - 8:30pm
Tuesday	9am - 10am
	5pm - 8:30pm
Wednesday	9am - 10am
	5pm - 8:30pm
Thursday	9am - 10am
	5pm - 8:30pm
Friday	9am - 10am
	5pm - 8:30pm
Saturday	10am - 1pm

Website

http://mmaunderground.info/

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