What We Do
We help you get super fit and wicked happy.
Food is Fuel. Movement is Medicine. Sweat is Therapy.
CrossFit / Functional Fitness
Strength and Conditioning
Infinitely scalable, we offers an amazing array of movements and intensities designed to make you fitter and more resilient. A different workout every day, we deliver challenging, fun, and rewarding group workouts for an unparalleled level of fitness through daily group classes.
Just the two of us.
Not into the group thing, special requirements? No problem. You can book personal training sessions with our coaches.
Make the squad
Know a Middle or High School student looking to get fit and compete at a higher level? We help build a positive relationships with fitness and health in a challenging, but supportive environment. Whether you are a beginner or an elite school athlete, we can help.
Off-season endurance athletes use CrossFit to stay in shape and get stronger for their primary sport – runners, cyclists, multi-sport athletes and obstacle course racers. The strength, agility and speed gained via our training are directly transferable to any sport.
Food is fuel
We’re diet agnostic. Every body is different and has different goals. Our Precision Nutrition Certified coaches will work with you to dial in the right healthy eating plan to reach your goals – aesthetic, strength, conditioning – or all three.
The Questionable Depth Project
YF is proud to be the home of The Questionable Depth Project (QDP) - an on-going exploration of the three pillars of NUTRITION, RECOVERY and TRAINING as we mature and want to maintain activity levels. Check out the QDP Podcast
Massage and Self Care
Bodywork makes the body work
We partner with body work specialists on-site to help you stay flexible, healthy and feeling fine. We focus a lot on recovery as a critical part of staying fit, and bodywork is one component of that.
note: calendar view does not work on all mobile devices, please visit this site on a desktop to see our full class schedule
Meet the team accountable for helping you get super fit and wicked happy.
Head Coach, Co-owner
Kevin is a CF-L1 trainer, and PN-1 Certified Nutrition Coach. When Kevin isn't overseeing programming, coaching or training, he's reading about training and coaching, golfing with his wife and co-coach Karen, or hiking with Izzy the Wonder Dog.
Rooks is a CF-L2 trainer, CF Weightlifting, and PN-1 Certified Nutrition Coach. When he's not overseeing gym operations, coaching or training, he's either in the mountains or the ocean with Kate and new baby Oz (aka Boz).
Karen is a CF-L1 trainer. When Karen isn't coaching or training, she is exploring her new home in Maine (she is a Boulder, Colorado transplant), being an amazing stepmom and mom to 5 fierce young adults. To Karen, CrossFit is just gym class for adults.
Kate is a CF-L1 trainer. When Kate isn’t coaching or training she is lawyering, eating all the tacos, spending time outdoors, and relentlessly spoiling her furry four-legged children and her one two-legged child, Ozzy.
Sara is a CF-L2 trainer and a Nutrition Therapy Practitioner. When she isn’t coaching or training, you can find her cooking something up in the kitchen, spending time with her husband and fur baby, or drinking coffee.
Michelle Cusack, LMT, PT, DPT
Michelle is a CF-L1 trainer. When she isn't coaching or training, Michelle is managing her bodywork practice, loving on her nephews and niece, spending time outdoors with friends, running, drinking champagne or eating and drinking her way through local restaurants and breweries.
Mark is a CF-L1 trainer. When he isn't coaching or training, he spends time with his wife, and his new baby daughter, Emma.
Nelle Riley Piercy
Nelle is a CF-L1 trainer. When Nelle isn't coaching, training, or saving the planet one wind turbine at time in her day time job, she's adventuring outside on the water or in the mountains with her husband, family, friends and as many critters as possible.
Erica is a CF-L1 trainer. When Erica isn’t coaching or training, she is mastering the art of food prep, achieving Auntie-of-the-Year status, and looking for the next cribbage partner in crime.
Sam is a CF-L2, CF-Kids, and Functional Adaptive trainer. When she isn't coaching or training, she is raising intelligent, strong-willed daughters (and LOTS
of pets!) with her husband.
Kevin is a CF-L1 trainer. When Kevin isn't coaching or training he's on his bike, paddle board, surfboard, or enjoying the finest drinking and dining that Brickyard Hollow has to offer. Also, his dog Sarah is the bee's knees.
Austin is a CF-L1 trainer. When he isn't at the gym, he is spending time with his wife and two dogs, or outside enjoying the great outdoors of Maine.
Founder, Coach Emeritus
Eric is a CF-L1 trainer and the originator of CrossFit Yarmouth. When he isn't coaching or training, he is spending time with his family, and skiing at Sugarloaf.