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.
Gym Owner - 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!
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!
Assistant Sports Performance Coach
Griffin Zigrang
Griffin was introduced to CrossFit in 2011 when she stumbled upon crossfit.com 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.
Assistant Sports Performance Coach
Kathleen Kavanagh
Kathleen was introduced to CrossFit in 2012 as a college student studying exercise science at Grand Valley State University. She was immediately drawn to the community and varied exercise movements and intensities that CrossFit offers to enhance overall fitness. After graduating from GVSU, she moved home to northern Indiana where she pursued her passion for fitness at a medically based fitness facility. She worked with a range of individuals including those with chronic disease, the general population, and athletes.
In addition to Kathleen’s education and 5+ years of coaching, her fitness experiences come from years of testing her physical and mental abilities in sport, CrossFit, Weightlifting, and obstacle course racing. After moving to Denver, CO in October of 2020, she found 720 Athletics to be a distinguished fitness community that uses evidence-based methods and intentional programming. Kathleen began coaching at 720 Athletics in 2021 excited to share her passion for fitness with others!
Olympic Lifting/Fitness Coach
Justin Biays
Justin is a combat veteran serving four years as an 11B (Infantry). After leaving the Army in 2013 he pursued a career as a full time Strength and Conditioning coach, earning his Bachelor's and Master’s degree in Exercise Science.
Justin Found his love for fitness in 2011 while deployed in Afghanistan, and has dedicated his life to helping others achieve their athletic goals. He has a strong interest in developing Strength and Conditioning programs geared towards improving performance in all areas of fitness while reducing and mitigating injury.
Olympic Lifting/Fitness Coach
Savannah Fearns
Olympic Lifting/Fitness 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.
Olympic Lifting/Fitness Coach
Zach Lemis
Zach went to the University of Michigan to pursue a degree in Architecture, however, it was here where he developed a passion for athletics. In 2008, Zach took over the S&C program for the Men's Ultimate team, which he continued to coach upon graduating. During this time, he discovered CrossFit and eventually developed a CrossFit for Ultimate program that helped elevate the team to compete at a higher level. Zach eventually left his architecture career to pursue coaching full-time. Zach has been coaching a combination of Strength and Conditioning, CrossFit and Olympic Weightlifting for over 10 years.
Since then Zach has coached in multiple gyms across Michigan, California, and Colorado. He enjoys competing on a regular basis and was the Pacific Weightlifting Association 85kg Champion in 2017. Zach specializes in Olympic Weightlifting, Functional Bodybuilding, and Strength Training. He continues to work with athletes of all skill levels in person and online, and enjoys helping them reach their health and fitness goals.