Grinders Fitness

Grinders Fitness Northglenn's #1 fitness facility offering Boxing, Kickboxing, BJJ, & MMA. Home of "Next Generation Denver” All levels are welcome to any of our classes.
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Grinders Fitness will help you reach all of your fitness goals no matter how big or how small. We offer cardio boxing and kickboxing classes along with boxing, kickboxing, BJJ and MMA classes for the more competitive minded individuals.

09/16/2026

😂 Yesterday’s theme was Anything But Gym Clothes, and this crew understood the assignment!

We had some laughs, a whole lot of fun, and outfits we don’t normally see at Grinders! 🤣

Grinders Fam, you make every day better! 🥊🔥

09/16/2026

The tired felt earned tonight.

That's the kind of tired we train for.

09/15/2026

Only competition that matters is the version of you from last Tuesday.

Beat them. Every single class.

Free trial class waiting for you in Northglenn — no commitment, just work. 💪

09/14/2026

Real community. Real sweat. Real results. That's the propaganda we're actually here for.

09/14/2026

That burn doesn't clock out when the class ends 🔥

Still feeling it hours later? That's the work sticking around.

They showed up and the energy was UNREAL 🔥 Grind Fam moments like this hit different.
09/13/2026

They showed up and the energy was UNREAL 🔥 Grind Fam moments like this hit different.

09/13/2026

🔥 GRINDERS ANNIVERSARY WEEK IS HERE! 🔥

10 YEARS. ONE GRINDERS FAM. 🥊

We’re celebrating all week with themed classes, big laughs, ridiculous outfits, and everything that makes Grinders special!

🎉 Fun all week long
🎰 Anniversary party Saturday
❤️ 10 years of community, memories, and showing up

From our very first day to the next chapter…

We’re just getting started.

Let’s celebrate 10 years of Grinders Fitness! 🔥

WHO’S READY?!

09/12/2026

No time? You have 30 minutes. Too sore? That's progress talking. Too tired? The grind fam is waiting for you.
Your excuse or your results. Pick one.

09/12/2026

⚡️ CHARGE YOUR SOUL. RECHARGE YOUR GRIND. 🥊

Sometimes you just need to put the gloves on, throw some punches, and leave it all on the bag.

More than a workout. It’s about clearing your mind, building confidence, and filling your cup.

Come charge your soul with us at Grinders. 🖤🥊

Address

455 W 115th Avenue
Northglenn, CO
80234

Telephone

(720) 749-4779

Website

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