Flatirons Training
Private Personal Training in Boulder, Colorado
Individualized strength, conditioning, mobility and performance coaching in a private training studio.
Welcome to Flatirons Training, a private personal training studio backed by 9+ years of coaching experience. Every session is designed around you—your goals, abilities, training history, and movement needs. Through individualized strength, conditioning, mobility, and performance coaching, we help you build strength, improve movement, increase endurance, and make sustainable progress with expert one-on-one guidance.
Meet Amanda
Amanda Marie is a personal trainer originally from Reykjavik, Iceland, now based in Colorado. With more than nine years of personal-training and coaching experience, she has worked with clients across a wide range of ages, abilities, and fitness backgrounds. Before becoming a coach, Amanda competed in triathlon at the elite level and represented Iceland on the national team.
Her approach blends strength training, conditioning, mobility, balance, endurance, and individualized programming with a strong emphasis on sustainable progress and quality movement. Rather than relying on one-size-fits-all workouts, Amanda tailors training around each client’s goals, abilities, training history, previous injuries, and individual movement needs.
She works with everyone from beginners building confidence in the gym to experienced lifters, endurance athletes, and weekend warriors who want to feel stronger, move better, improve performance, or simply be more capable in everyday life and the outdoors. Amanda’s goal is not just to put clients through a workout, but to help them understand their training, build confidence in their bodies, and make progress that carries over well beyond the gym.
With expertise in working with diverse clients, we understand the unique challenges and goals each individual faces. Our mission is to empower you to reach your full potential and lead a healthier lifestyle.
Start Training
Private Personal Training
50-minute one-on-one training sessions tailored to your goals, abilities, training history, and movement needs. Build strength, improve mobility, increase endurance, and make sustainable progress in a private training studio.
​​
​
​
​
$85 / session
Partner Training
Train with a partner while still receiving individualized coaching. Sessions are designed around both clients’ goals and abilities, combining strength, conditioning, mobility, and performance work in a private setting.
​
​​​​
​​
​
$130 / session for two
Online Endurance Coaching
Individualized monthly coaching for runners, cyclists, triathletes, and endurance athletes. Your training plan is built around your goals, experience, schedule, and recovery needs, with structured progression designed to improve endurance and performance.
​
$195 / month
Testimonials
Victoria K, CO
“Working with Amanda for a year, completely transformed my body and my life! I have become someone who enjoys fitness, My weight no longer fluctuates, my clothes look amazing, and most importantly, I feel energized and happy.”
Lisa G, Iceland
“Amanda is one of the most experienced and committed trainers around and has vast knowledge in her profession. Sessions with Amanda were always challenging but also super fun. If I was ever struggling with a hint of pain, she would swiftly bring up excercises that would target
that area before they became a problem. I noticed that Amanda would always familiarize herself
outside the sessions with any injuries I got and structured the training around them.”
Valeria L, CO
“During my time training with Amanda I have been able to see improvement in my strength and endurance. I started training with her to be a better swimmer and it worked, my form got better I can do flip turns now! She's an amazing coach and a great person!”