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Meet The Coaches

Our coaches help people of all different fitness levels. We train to enjoy life’s outdoor adventures as well as to get fit & live healthy lifestyles.

April DiGiannantonio - Gym Owner- CrossFit L2 Coach

- Gym Owner- CrossFit Coach -

April DiGiannantonio

April has been CrossFitting since 2011 and extremely active outside the gym whether running, biking, skiing, hiking, or golfing. Her love of coaching CrossFit is contagious which sets the tone for high energy and motivating classes. She has a competitive nature and enjoys competing individually and with a team in competitions around Colorado and at the regional level. She graduated from The Culinary Institute of America in New York and has worked in restaurants around the world. April offers Nutritional and Personal Programming to her clients to promote healthy eating and personal growth.

We strive to develop clients who want to improve strength, endurance, athleticism, lifestyle, and competitiveness. Whether you want to workout twice or six times a week, lose weight or gain strength through Olympic lifting we welcome anyone who has the passion to work hard and strive for greatness!


  • CrossFit Level 1
  • CrossFit Level 2
  • NCI Nutrition Coach Specialist, Level 1
  • Starting Strength Certification 
  • CrossFit Gymnastics
  • i99 Gymnastics Coach Certification 
  • USA Weightlifting Level 1 Sports Performance
  • CrossFit Powerlifting
  • CrossFit Kids
  • CrossFit Endurance
  • Opex CCP Level 1 – Program Design
  • Opex CCP Level 1 – Nutrition
  • CrossFit Kettlebell
  • Think Tank Energy Systems Program Design
  • Think Tank Energy & Strength Systems 
  • Bachelor's in Finance and Entrepreneurship
  • Masters in Business Administration
  • Exercise Science degree in progress 

• 2016 – 28th Place CrossFit Games South Regionals Team

• 2015 – 30th Place CrossFit Games South Regionals Individual

• 2014 – 7th Place The Crush Games Pro Division, Miami FL

• 2014 – 7th Place CrossFit Games South West Regionals Individual

• 2014 – 3rd Place The Fittest Games (Pro Division) Austin, TX

• 2013 – 1st Place Wyoming Open Pro-Division

• 2013 – 17th Place CrossFit Games South West Regional Team

Jake Eustrom Head Coach - Manager

- Head Coach - Manager -

 Jake Eustrom

Jake started coaching in 2012 after receiving his CrossFit Level 1 certification, he has also spent a good amount of time in the medical industry as a field and clinical EMT before becoming a full-time CrossFit coach. Jake's passion for fitness, nutrition, and teaching enables him to offer and extend his knowledge to those that have the desire to make a change in their lives. In Jake's opinion, CrossFit is not only about fitness and health but also a chance to challenge one's mental and emotional boundaries. If you have the desire to overcome physical, mental and emotional limitations then CrossFit 720 is definitely for you!

  • CrossFit Level 1

  • CrossFit Level 2

  • Starting Strength Certification 
  • Westside Barbell Special Strengths Certification
  • i99 Gymnastics Coach Certification 
  • CrossFit Kids 



  • 2016 28th Place CrossFit Games South Regionals Team


Griffin Zigrang - CrossFit Coach - Nutrition Coach New Member Coordinator

- CrossFit Coach -
Nutrition Coach
New Member Coordinator

Griffin Zigrang

Griffin was introduced to CrossFit in 2011 when she stumbled upon and started doing the WODs at her local globo gym. She was immediately hooked. After moving to CO in 2014 she joined her first affiliate at CrossFit Ken Caryl, and a few months later, found her place at CrossFit 720.

Griffin was a gymnast from the time she could toddle until she was a 14-year old Level 9/10. She was forced to quit due to scoliosis and the inevitable, spinal fusion surgery. After surgery, she moved on to power tumbling, competitive cheerleading, and competitive dance, but gymnastics was a passion that, years later, she still hasn't gotten over. You will see evidence of this in her classes as she focuses on movement, proper body positions, and strict strength.

Pre-CrossFit, Griffin earned her Bachelor of Science in Psychology from Longwood University and Master of Art in Organizational Behavior and Program Evaluation from Claremont Graduate University. She did program evaluation work in the public sector, both at the federal and local levels, for six years before acknowledging that the fitness world was where she needed to be.

  • CrossFit Level 1
  • NCI Nutrition Coaching Specialist, Level 1
  • i99 Gymnastics Coach Certification 
  • CrossFit Gymnastics
  • CrossFit Kids
  • USA Weightlifting Level 1 Sports Performance
  • Training Think Tank – Energy & Strength Systems
  • BS in Psychology
  • MA in Organizational Behavior and Program Evaluation
Crossfit Denver Coach

- Olympic Lifting Coach -

Savannah Fearns

Savannah found CrossFit in 2012 while attempting to shake off some weight. Having grown up playing soccer, swimming, snowboarding and being raised in the military, physical activity has always been a necessity. But even after joining the military herself, she still managed to fall into a funk. She dropped the weight, yet felt weak until she found a group of CrossFit inspired friends at the base gym. This gave her a new respect for strength and weight gain and from there she took it by storm. Realizing the liberating effect the iron therapy had on her life and many others, she proceeded to get her Level 1 in 2014 and could only hope to share the same joy that she’s had with her new found health.
Since then she has coached at 5 gyms over 2 states and regularly entered CrossFit and Weightlifting competitions. 
Her favorite lifts are the Snatch and the Deadlift; she has placed 2nd at the Colorado State Weightlifting Meet in the 69kg class. 
  • CrossFit Level 1
  • CrossFit Level 2
  • CrossFit Rowing
  • CrossFit Weightlifting 
  • CrossFit Anatomy
  • CrossFit Scaling
  • CPR AED 
  •  2nd Place Colorado State Weightlifting Meet - 69kg class

- CrossFit/Performance Coach -

Liz Austin

Liz Austin has always been passionate about health and fitness. She was introduced to CrossFit in New York City in the summer of 2016 while training for her third Spartan Race. Shortly thereafter, Liz moved to Colorado in February 2017 to pursue her love for the mountains and continued CrossFit at 720 Athletics. Always working to learn more and expand her knowledge of movement, as well as become a better CrossFit athlete, Liz receiving her CrossFit Level 1 Certification in January of 2018, as well as her ACE Group Fitness Certification in April 2018.

Liz received her Bachelor of Arts from the University of Connecticut in 2011, and currently works for StartUp Health, a global innovation company that invests in and supports over 400 digital health entrepreneurs around the world. When she’s not training at the gym, you can find Liz skiing the mountains of Colorado and exploring the outdoors with her golden retriever, Henri.

  • CrossFit Level 1
  • ACE Group Fitness
Jake Humphrey CrossFit 720 Denver Coach

- CrossFit/Performance Coach -

Jake Humphrey

Jake, or The Big Kat as he's affectionately referred to, has been coaching Strength and Conditioning, and has been a staple of the Denver CrossFit community for more than a decade.  A former Division 1 football player and All American Rugby player for Colorado State, Jake's specialty is Strength Training, Sports Performance and Weightlifting, having been a USAW Certified Coach since 2009.

He is currently the #1 ranked 96 kilogram Senior lifter in Colorado, and the #2 ranked 96 kg Master's (35+) lifter in the country.  Jake loves to "Coach Em' Up" in all things Barbell.

  • USAW Certified Coach
  • CrossFit Level 1 Trainer
  • CrossFit Level 2 Trainer 
  • Exercise Science Degree in Progress
Tommy Lee CrossFit 720 Denver Coach

- CrossFit/Performance Coach -

Tommy Lee


  • CF-L2
  • SPC-Holistic Nutrition Cert
  • SPC-Sport & Exercise Science AAS