GridIron Fitness

Gridiron is a group fitness studio that focuses on the whole person.


From goals to needs, and fitness to nutrition, we’re in the business of creating a healthier lifestyle and happier you


Fitness for the rest of us.

Classes at Gridiron

Here at Gridiron we believe that everything you need for fitness you already possess!  We utilize your own body weight, dumbbells, ropes, rings, jump box stations and whatever else we can come with to give you an amazing yet effective fitness session. 

Strong (HIIT)

Our high intensity interval training (HIIT) includes cardio, strength and conditioning, and plyometric training, all in a short period of time. HIITs increase your metabolism causing more efficient fat burn-quick and convenient for busy people.

Sports Conditioning

We offer Sports Conditioning for our athletes – taught by athletes!  We teach injury prevention and education to help keep you on the field/court healthy and strong!

Dumbbell Club

Our Dumbbell Club focuses on sculpting and toning. No matter what your age or goal, everyone needs muscle to protect your body! We love body sculpting and know you will too!

Boot Camps

Our boot camps are total body workouts with cardio, strength and power training all rolled into one.


Carve out some time for YOU! Your body, mind and loved ones will thank you for it.

Box Fit

Boxing is the best full body workout you can get and it’s right here in Wellington. 

Stop in for a week of free classes to see if we are a good fit for your goals!

All fitness levels are welcome. We teach modifications for all of our classes, with experienced, certified training instructors.

Class Schedule

Please check our Facebook page for current class schedules.

Membership Pricing

Drop-In & Per-Class Pricing

Your first week is always free!
Ask us about personal training and nutrition services.

About Gridiron Fitness

Gridiron Fitness has been a labor of love, hard work and dedication to bring something different to our community. It is a place where ever-evolving fitness and fun can be accomplished under one roof without all of the traditional stereotypes of many big box gyms.

We believe in community, accountability, nutrition, perspiration, inspiration and a healthy lifestyle. We offer challenging and fun classes and programs that are customizable to every fitness level. Our members are real people with real goals and real desires to achieve those goals – rather than numbers in a crowd. 

At Gridiron, we get it! You bring the effort and the time and we will help you get there. “No Excuses” now lets go!

Kelly Carroll, Owner & Trainer

Hello, I am Kelly Carroll and I am the owner as well as a trainer here at Gridiron Fitness. I have had a passion for fitness and nutrition for over 35 years but had to first come full circle personally to make Gridiron a reality.

I grew up in a small town in upstate New York and, as early as 8th grade, I was leading aerobic classes in the lunch room after school with my friends. As I entered into my High School years I dealt with many of the struggles kids do today. I battled with an eating disorder which later led to body dysmorphia and low self esteem. I jumped from gym to gym and diet to diet never finding what I was looking for – a place where I fit in. I have spent years learning to overcome obstacles that I have struggled with.

In 2012 I began my own journey in fitness and nutrition and that has blossomed into a dream beyond dreams! It has given me the opportunity to heal personally and share my experiences and training here in Wellington – a town not so different from where I grew up! Giving people a choice and a place to overcome, and achieve goals they never thought were possible is an incredible opportunity and an honor. Thank you Wellington for being our home!

Education & Qualifications:
National Academy of Sports Medicine (NASM) Personal Trainer, Performance Enhancement Specialist (NASM), MMA Conditioning Specialist (NASM), Corrective Exercise Specialist (NASM), Fitness Nutrition Specialist (NASM), Sports Conditioning Specialist (NASM), Conditioning Specialist (NASM), Les Mills Body Combat Certified Instructor, Les Mills Body Pump Certified Instructor, Les Mills GRIT Certified Instructor, Precision Nutrition Coach, P90X Certified Instructor, Insanity Certified Instructor, PiYo Certified Instructor, AMPD Resistance Certified Instructor, Functional Movement Specialist, Sports Performance Trainer, Currently enrolled in the Dietetics Program at the University of Northern Colorado

Tyler Carroll, Owner & Trainer

Hello, I am Tyler and I am the co-owner of Gridiron Fitness. I am currently a student at University of Northern Colorado, studying sports medicine and exercise science. I am excited to see what the future holds for me in the world of fitness and healthy living.

Education & Qualifications:
Les Mills GRIT Certified Instructor, Functional Movement Specialist (PENDING)

Contact Gridiron Fitness


8925 Pieper Road
Building A, Suite A
Wellington, CO 80549


(970) 568-1118



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