Cerus Fitness

Cerus Fitness

Frederick, Colorado | 5.0
5.0 (183 reviews)

Cerus Fitness is a boxing gym located in Frederick, Colorado. Specializing in Fitness Boxing. Rated 5.0 out of 5 by community members.

Specialties

Reviews

Jason Collins
Jason Collins 3 months ago

Our daughter's softball team trained there on the off-season. It was an awesome experience for them. Coach Darnelle was the very best at motivating and pushing them to be the very best version of themselves.

Kyle
Kyle 3 months ago

We signed up our competitive 12U fastpitch softball team for a 16-week agility and strength program, and the experience exceeded expectations. The facility itself is impressive — clean, organized, and built for serious athletic development. The staff is top-notch, and a huge shoutout to Coach Darnelle. He knows exactly how to push the girls to their limits while keeping the energy positive and motivating. His coaching style builds confidence, discipline, and real results. The girls genuinely looked forward to every session and you could see their growth week after week — both physically and mentally. If you’re serious about developing young athletes the right way, Cerus Fitness delivers.

Jessica Payne
Jessica Payne 3 months ago

Our daughter's competitive softball team has been going here for the last several weeks and I just have to leave a review with how impressed I am with Cerus Fitness! They are so good to the girls and the team in general, they offer positive and constructive feedback, and the girls always leave with a smile on their faces. I'm very happy to have experienced this and had the opportunity to be a part of Cerus!

Owner Response · 2026-02-11T15:25:15.000Z

Thank you so much for your wonderful review, Jessica — we’re thrilled your daughter’s team has had such a positive experience at Cerus Fitness. We pride ourselves on delivering encouraging, constructive coaching and it means a lot to hear the girls leave smiling. We look forward to continuing to support the team and helping them grow. The Cerus Team

Adam Bappe
Adam Bappe 7 months ago

I've been a member of Cerus for right at a year and I wish I had joined long before I did. The workouts are challenging but really well thought out, and the coaches are awesome at meeting you where you’re at while still pushing you to get better. There’s a good mix of strength, conditioning, skill work and all the things to keep fitness fun and interesting. You actually feel like you’re progressing week to week. What I love most is the community—it’s such a welcoming group of people who genuinely support each other. The community motivates and challenges each other, while, most importantly, lifting each other up. Come join our community!

Owner Response · 2025-10-09T13:37:39.000Z

Thank you so much for your glowing review, Adam! We're thrilled to hear that you've had such a positive experience at Cerus and appreciate your commitment over the past year. Our coaches strive to create a supportive environment that challenges everyone, and it's fantastic to see that you feel that progress. We're especially glad you value the community spirit here, as it truly makes a difference in everyone's fitness journey. We look forward to continuing to support you in your goals! The Cerus Team

Ali Lommel
Ali Lommel 9 months ago

I’ve been going to gyms my entire life, Cerus Fitness is the best I’ve ever found. The programming is creative and challenging, the coaches genuinely care about your progress, and the community is incredibly welcoming. What really sets Cerus apart is the energy—it’s not just about fitness, it’s about building confidence, having fun, and connecting with others who push you to be your best. I've become my best self here and I will forever be grateful to Cerus. For me, Cerus isn’t just a gym, it’s home. Try the Athlete 2.0 program!

Owner Response · 2025-08-26T08:31:42.000Z

Thank you so much for your kind words! We're thrilled to hear that you've found a home at Cerus Fitness and that our programming, coaches, and community are helping you reach your best self. Your enthusiasm for the Athlete 2.0 program is appreciated, and we’re glad to have you as part of our team. We're committed to fostering an environment where everyone feels empowered and supported. Keep up the great work! The Cerus Team