Sonic Endurance
Train Smart. Race Bold.
Belong to Something Bigger
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Sonic Endurance is dedicated to helping athletes of all abilities achieve their endurance goals. We understand that no two athletes are alike and the response to training is an individual process. We regularly incorporate field-based testing and functional movement testing in order to assess an athlete’s progress towards their goals. It is our mission to develop a plan that uses your training time efficiently while preparing you to accomplish or exceed your goals.
Sonic Endurance
Personalized Training
Unlock Your Potential
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It all begins with culture—and Sonic’s culture stands above the rest. Coaches and athletes unite as a team, supporting one another through training, overcoming challenges, and pursuing personal goals. At the heart of Sonic’s success are acceptance, mutual respect, and a deep appreciation for each athlete’s individuality. The coaches are not only highly knowledgeable but also genuinely invested in helping you achieve your goals.
Through strategic partnerships with athletic trainers, physical and occupational therapists, training camps and trusted vendors, Sonic ensures every aspect of your training experience is optimized for your success.
At Sonic, every finish line marks a victory over your personal limits.
I signed up with a Sonic coach to improve personally as a triathlete, and almost immediately I started training smarter. I was working harder in many sessions, but I was also less tired overall at the end of the week. I was meeting my primary goal of sustainable fitness for years to come, and as a nice bonus my race times improved dramatically!
But more importantly what I have gained from Sonic, which I didn't know I needed, is a culture of community and support. This is a team focused on affirming each others' wins no matter what they look like, providing support through successes and challenges, and generally bringing a positive attitude to endurance sports. I came for myself, but I'm now proud to be a part of this team team!
My Journey all start in the summer of 2021 when I found myself unhappy with my current fitness level. I had not seen a gym in roughly 10 years, or even attempted any type of cardio workout. I set my goals a bit high without really knowing what I was getting myself into. I registered for my first full Ironman in Lake Placid! In this process I found Sonic Endurance and started working with Maribeth. One of my first times meeting Maribeth, was also my first time EVER swimming in a lap pool, and it showed! Maribeth evaluated my skill level, and spent countless hours teaching me how to swim, while improving my technique and endurance. Swimming was my absolute biggest challenge of the three disciplines. Maribeth was always available for encouragement, support and a good laugh throughout my journey. Working with Maribeth not only kept me accountable, but without her, my goals would not have been met. From Swimming, biking, running to fueling properly for races, Maribeth was there every step of the way. I have continued to work with her as my Endurance coach now for 4 years and have never felt more accomplished in my endurance goals! Working with Maribeth and Sonic has given me some of the best years of my life, the value of working with Maribeth one on one is priceless. Forever grateful!
Joining the Sonic Endurance team and being a 1 on 1 coached athlete has been a life changing experience. I achieved goals I never even dreamed of, including my first full Ironman finish. Coach Stacey gave me the confidence to sign up for Ironman Lake Placid and with her guidance, I never once thought I would not finish. On top of that, the Sonic team has literally become some of my closest friends and chosen family.
Sonic Endurance is more than a coaching company.
Sonic Endurance is a collection of like-minded individuals
We’re Endurance Coaches – and we are athletes. We like to get our hands dirty. We train, we race, we fail, and we succeed. We understand what you experience throughout your seasons of training and racing because we are right there beside you, on the same journey.
Through years of training, racing, and coaching, we’ve learned our athletes benefit most from a team approach. We each bring something different to the table and want you to benefit from each perspective. You’ll have your 1-on-1 coach, combined with the knowledge, experience, and expertise of all our coaches. Together, we bring our passion for triathlon to coaching in support of your goals and behind the process of uncovering your potential.
Sonic Endurance
Our Mission & Visions
Our Articles
While the World Watches Kona, Celebrate Your Own Journey
Every athlete who races in Kona has a story of setbacks, disappointments, and obstacles they had to overcome. The difference isn’t that they faced fewer challenges. It’s that they continued moving forward despite them. The same is true for every athlete reading this today.
Build The Engine – Becoming a Sonic Team Member in 2027
A new race season is right around the corner and Sonic Endurance has open arms for you to join us in 2027. Sonic Endurance is an amazing community of like-minded athletes of all shapes, sizes and abilities from across the country
Fall Back Without Falling Apart
Why taking time off now sets up your best season yet. We get it, the hype for 2027 is happening. Races are opening, there is excitement about your goals. Your A-race is behind you, the mornings are getting darker and you have moved some of your training insdie. Plenty of athletes answer that by pushing harder, because they’re afraid of losing what they built this summer, they want to stack the bricks and get stronger. Our advice is the opposite. The best thing you can do for your 2027 season right now is take a real break. That doesn’t mean quitting or disappearing. It means taking a planned step back so your body and brain can catch up with all the work you asked of them this year. Yes you can be active, you can still do some training, but allowing the body time to let go of the top end fitness and some time to set yourself up for the 2027. Rest is where the fitness gets built Training doesn’t make you fitter. Recovering from training does. Every hard session breaks you down a little, and you get stronger while you rebuild. That’s true for a single workout, and it’s true for a whole season. Short breaks cost less fitness than you’d think. A 2023 review of detraining in endurance athletes found VO2max dropped about 4–7% after two to three weeks of no training. Most of that early loss comes from lower blood volume, which returns quickly once you’re back at it After months of build blocks, tapers and racing, you’re carrying some fatigue that a few easy days won’t clear: Muscles, tendons and joints take longer to recover than your heart and lungs. That’s why so many niggles start to show up in the fall. Hormones and immune system take a hit from long stretches of high training load plus life stress. Those October colds that won’t go away are often a sign of that. Sleep and appetite can get out of whack late in the season. Resting helps reset them. Take this time to celebrate your work and your accomplishments. The joy is in the journey. What happens if you do not take the break? If you skip the break, you start next year’s base phase already tired. If you take it, you start fresh, and you’ll be able to absorb more training when it counts. It is not only physical fatigue but also mental fatigue. You cannot out train leftover fatigue and starting in a hole for 2027 might not yield you the results you want. Those little niggles that have been bothering you towards the end of the season can become serious injuries if you dont address them. We cant be the best athlete all year long, so the fall is the time to let some of the fitness go and really appreciate those who support you. There is the physical side of training, and there is also the mental side. Endurance sports ask a lot of your mind as well as your body. There are early alarms and hard workouts, and you’re always fitting in workouts around work, family and everything else. A season’s worth of that builds up quietly. Motivation fades, workouts start to feel like chores, and missing a session brings guilt instead of a shrug. That’s the early stage of burnout. The fix isn’t more discipline. It’s space. The time away from building fitness and structure lets you: Miss it. Athletes who take a real break almost always come back hungry. That spark will carry you through January trainer sessions. Reconnect with life outside sport. Sleep in on a Saturday. Have dinner with friends. Say yes to the things you said no to all summer. Remember why you do this. Without the plan, you get to move for fun again. Try a hike, a trail run with no watch, or a pickup soccer game. Work on your limiters.. You can focus on form, strength or the low hanging fruit that can set you up for your best season yet. What a good break looks like There’s no single right answer. I think this really depends on the athlete, their goals and what kind of season they have had. Some athletes need only a couple of weeks, others a month, and some take a down year after chasing a goal that required intense focus. This is a good conversation to have with your coach.