Kari Mullen

Karialyssam@gmail.com, TrainerKari.com

Director of Adult Fitness

Certified Personal Trainer, Nutrition Specialist

ACE Sports Conditioning Specialist 

Kari specializes in general fitness, group training, and high intensity circuit training.  She also loves to work with endurance athletes and has placed in several sprint and olympic distance triathlons in the Boulder area.  Kari is currently training for century distance cycling and half ironman triathlon.  


Spencer Goodding


Certified Strength and Conditioning Specialist

Spencer recently graduated from the University of Colorado at Boulder with a degree in Integrative Physiology. With a background in rugby and strength sports, he specializes in weight training techniques to achieve high levels of strength. Spencer also trains athletes of various sports as a Performance Coach for Impact Sports.


Tyler Porter


Certified Personal Trainer, Cycling Instructor

Tyler is an expert in bodyweight and calisthenic human movement with extensive experience in hypertrophy training, body building and competition preparation.  He is also a published fitness model and former semi-professional cyclist in Road, Cross-Country and Cyclocross.  


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Impact Sports Performance 

One Superior Drive Unit B
Superior, CO 80027

Hours of Operation                      
MON – FRI:  5:00 am  –  9:00 pm

​SAT & SUN:  7:00 am  –  7:00 pm

Phone Number: (303) 467 - 2288