Why CrossFit Yarmouth Feels Different
At CrossFit Yarmouth, we believe fitness should serve your life—not the other way around. Our mission is to help people in all seasons of life feel stronger, move better, and stay active for the long haul. We don’t chase podium finishes—we build confidence, energy, and resilience through expert coaching, personalized support, and a down-to-earth community. We meet our members where they are, and walk with them toward a life they love living.
Meet the Coaches Who Make It Happen
The coaching staff at CrossFit Yarmouth brings a rare mix of deep experience, diverse life stages, and genuine care. With a team of 11 coaches—some who’ve been coaching CrossFit for over a decade, and others newly passionate about the craft—we’re proud to represent the very community we serve. Our coaches are known not just for technical knowledge, but for their ability to connect, support, and tailor every session to the individual. Whether you’re new to fitness or just coming back, you’re in good hands here.
Kristen Moustrouphis
Founder
At the heart of this gym is a commitment to building a strong, supportive community where fitness is not just about working out but about creating a foundation for lifelong health. Kristen brings a wealth of experience and passion for functional fitness, coaching, and community-building.
At the heart of this gym is a commitment to building a strong, supportive community where fitness is not just about working out but about creating a foundation for lifelong health. Kristen brings a wealth of experience and passion for functional fitness, coaching, and community-building.
Her journey in the CrossFit world began in 2014 when she stepped into a CrossFit gym after months of hesitation. As a former high school and collegiate athlete, she quickly found herself drawn to the camaraderie and challenge. This passion led her to transition from a decade-long career in secondary education to coaching full-time in 2016 and later stepping into gym ownership of Crossfit Beacon in Portland in 2019. As a mom of two, Kristen understands firsthand the importance of a fitness space that meets people where they are—through all seasons of life. She has dedicated herself to creating an environment where members can build strength, confidence, and resilience. Here, fitness isn’t just about reps and sets; it’s about preparing for life’s ups and downs, supporting each other, and embracing the joy of movement. When you walk through these doors, you’ll find a space where everyone—no matter their starting point—is welcomed, challenged, and empowered to become the strongest version of themselves.
Eric Leinwand
Founder
Eric is the founder of CrossFit Yarmouth. When he isn’t coaching or training, he is spending time with his family, and skiing at Sugarloaf.
Eric is the founder of CrossFit Yarmouth. When he isn’t coaching or training, he is spending time with his family, and skiing at Sugarloaf.
Kevin Haley
Coach
Kevin is a CrossFit-L2 trainer, USAW-L1 Coach, and PN-1 Certified Nutrition Coach. When Kevin isn’t 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.
Kevin is a CrossFit-L2 trainer, USAW-L1 Coach, and PN-1 Certified Nutrition Coach. When Kevin isn’t 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.
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Karen Jordan
Coach
Karen is a CrossFit-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.
Karen is a CrossFit-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 Rooks
Coach
Kate is a CrossFit-L1 trainer, USAW-L1 Coach, and is CrossFit Kids Certified. 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.
Kate is a CrossFit-L1 trainer, USAW-L1 Coach, and is CrossFit Kids Certified. 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.
John Rooks
Coach
Rooks is a CrossFit-L2 trainer, USAW-L1 Coach, CrossFit Weightlifting, and PN-1 Certified Nutrition Coach. When he’s not coaching or training, he’s either in the mountains or the ocean with Kate and new baby Oz (aka Boz).
Rooks is a CrossFit-L2 trainer, USAW-L1 Coach, CrossFit Weightlifting, and PN-1 Certified Nutrition Coach. When he’s not coaching or training, he’s either in the mountains or the ocean with Kate and new baby Oz (aka Boz).
Erica Plasse
Coach
Erica is a CrossFit-L1 trainer and USAW-L1 Coach. 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.
Erica is a CrossFit-L1 trainer and USAW-L1 Coach. 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.
Charlie Nolan
Coach
Charlie is a CrossFit-L1 trainer. When not at the gym, Charlie is working remotely as a technical project manager and spending as much time as he can with his wife Ashley and son Kai. Charlie will never turn down an opportunity before or after class to nerd about all things CrossFit.
Charlie is a CrossFit-L1 trainer. When not at the gym, Charlie is working remotely as a technical project manager and spending as much time as he can with his wife Ashley and son Kai. Charlie will never turn down an opportunity before or after class to nerd about all things CrossFit.
Chelsea Hadsel
Coach
Chelsea is a CrossFit-L2 trainer. When Chelsea isn’t coaching or tromping through a construction site at her day job as an Electrical Engineer, you can find her playing games with her daughter Astra, watching nerdy tv content with her husband Daniel while knitting up something nifty, or exploring old haunts as a returning Maine native.
Chelsea is a CrossFit-L2 trainer. When Chelsea isn’t coaching or tromping through a construction site at her day job as an Electrical Engineer, you can find her playing games with her daughter Astra, watching nerdy tv content with her husband Daniel while knitting up something nifty, or exploring old haunts as a returning Maine native.
Danielle Rideout
Coach
Danielle is a CrossFit-OL1 coach. She enjoys spending time outdoors with her family. She is a therapist & passionate about working with people who are in recovery from substance use disorder.
Danielle is a CrossFit-OL1 coach. She enjoys spending time outdoors with her family. She is a therapist & passionate about working with people who are in recovery from substance use disorder.
Top-Tier Equipment to Support Your Goals
At CrossFit Yarmouth, we keep things focused with the essentials that matter: barbells, dumbbells, kettlebells, bikes, rowers, ski ergs, rings, ropes, and a solid rig. We believe your body is your greatest machine—and our gear helps you move better, get stronger, and train for whatever life throws at you.
What to Expect When You Walk In
Our 4,000 sq ft open training space is designed for simplicity and functionality. From the moment you walk in, you’ll feel the energy of a gym that’s focused on delivering exciting results. With plenty of room to lift, push, and pull, and a turf strip in the back for sled work and conditioning, this space is all about giving you the tools and freedom to train with purpose.
Get started
Click the button to book a free intro. See if our gym is right for you.
