
Our Team
Meet the coaches who make Monument Fitness Charlestown's home for functional fitness.
Meet Your Coaches
Our award-winning coaching staff brings decades of combined experience working with clients of all fitness levels, ages, and goals.

Stacey Kroon
Co-Owner & Head of Coaching
Two-time top-12 finisher at the CrossFit Games and nine-time consecutive CrossFit Regionals competitor, Stacey brings elite-level experience to every class she coaches.
Through the OLO Method, she has guided hundreds of clients to create healthier relationships with food, lifestyle, and fitness. She also co-owns Vivolo Wellness Club, serving as Head of Wellness.
Stacey lives in Charlestown with Aaron, their son Odin, and their dog Thor.
Education
BA, Keene State University, summa cum laude
Certifications
Precision Nutrition Certified Nutrition Specialist
CrossFit Level 1, Gymnastics & Advanced Gymnastics
CrossFit Nutrition & Olympic Lifting
Certified Strength and Conditioning Specialist (NSCA)

Aaron Landes
Founder & Co-Owner, Head of Programming
Aaron has been coaching for almost 20 years, starting as a college baseball coach before moving to fitness. He has owned Monument Fitness for 15 years, building it into Charlestown's premier functional fitness destination.
Education
MBA, University of Michigan, Ann Arbor
MA, Education, Boston University
BA, Brandeis University
Certifications
CrossFit Level 1
CrossFit Powerlifting
USAW Weightlifting

Annie Yonker
Coach
Annie's athletic journey began with gymnastics, swimming, and soccer before discovering ice hockey at age 10. She excelled as a collegiate rugby flyhalf, team captain, and executive board president with the Beantown Women's Premiere League Rugby Team.
Outside the gym, she works as a professional dog trainer specializing in aggressive dog behavior and enjoys snowboarding and hiking with her pup.
Education
BS, Applied Mathematics, Wentworth Institute of Technology

Melissa Shaw
Coach
With more than a decade of fitness industry experience, Melissa co-owns Vivolo Wellness Club where she serves as Head of Clinical Services. She has been a Monument member since 2018 and coach since 2020.
Her athletic background spans baseball, basketball, national championship cheerleading, and 15 years of dance. Known for her fire playlists, she creates an energetic, supportive environment every class.
Melissa also works as a Registered Nurse at Massachusetts General Hospital.
Education
BS, Nursing, Bay State College
BS, Health Sciences & Psychology, Fitchburg State University

Erin Pustarfi
Coach
Erin started CrossFit in 2020 and began coaching in 2021. With a strong background in team sports like softball and club soccer, she competes in local CrossFit competitions across New England.
She brings a creative background in art and design alongside her pursuit of a degree in Clinical Mental Health Counseling. She enjoys baking and spending time with her French Bulldog, Toast.
Education
MA, Clinical Mental Health Counseling, Lesley University
BA, Photography, Savannah College of Art and Design
Certifications
CrossFit Level 1
Precision Nutrition Level 1
Adaptive Trainer
Trauma Informed Coach

Taylor Landes
Coach
A longtime member of the Monument community, Taylor balances pursuing her MBA with maintaining an active training routine. She has been an avid CrossFitter since the mid-2010s and recently found her passion for coaching.
Often found walking her dog around Charlestown, Taylor also enjoys serving as a Dungeons and Dragons game master.

Olga Akselrod
Coach
A competitive CrossFitter with years of experience training and performing at a high level, Olga has a sharp eye for movement and a passion for helping athletes move better, safely, and efficiently.
Her coaching emphasizes proper form, safe progression, and results-oriented training for all levels. Beyond the gym, she is an animal lover and rescue advocate, entrepreneur, and pickleball enthusiast.
Our Facility
5,000 square feet of dedicated training space in the heart of Charlestown.



Train with the Best
Book your free trial class and experience our award-winning coaching.
Book a Free Trial