Trainers

Tim Retzik RKC - Head trainer

TIM RETZIK RKC
Tim, in addition to being a CrossFit trainer is also a RKC. Flatirons CrossFit is the combination of both CrossFit and kettlebell training. Tim has a background in martial arts and is currently a purple belt in Brazilian Jiu-Jitsu. He enjoys competing in just about anything, but Tactical Strength Challenges and International Jiu-Jitsu tournaments are how he spends his spare time. In the past year he has begun to incorporate Kettlebell training into CrossFit workouts and is pleased how they compliment the CrossFit program and likes their Pre-habilitative as well as their rehabilitative value. Training is more than just physical fitness. It is "mental" fitness as well. If you don't know what this means, try one of Tim's workouts and this will become painfully obvious: I promise. Tim's motto is simple- "Train like your life depends on it because it does."

United States Secret Service Snatch Test 233 rep in 10 minutes 24kg kettlebell
1000 rep snatch test 16kg kettlebell 42:37
1000 rep push jerk test 16kg kettlebell 58:40
TSC 5 minute snatch test 140 reps 24kg kettlebell

Testimonials

I've been doing CrossFit for 3 months now, and I have generally been focused on performance improvements. Lately, however, I've also noticed major changes in my body composition. I've only lost a couple of pounds, but I bought new clothes because mine got too big. I'm leaner, and I like how my body looks for the first time in a long time. I feel better about myself, and I feel a new sense of power. Now I know how to get fit and strong, and I will never again get stuck in that bad place where I know I need to look better but I don't know how to do it. It's a bad cycle, getting out of shape and feeling bad, and it can spill into all areas of life. For me, CrossFit has been an incredibly positive way to address it. You don't need to focus on changes in appearance or the scale; you can set performance goals and focus on that, go hard, and the rest will come along for the ride.
Amy - Boulder

I have been training with Tim for 5 months and can not believe the change in my fitness level. Tim deserves 100% of the credit. After just a few weeks I got the distinct impression that Tim takes a personal interest in the progress and success of each of his clients. He manages to bring out the best in each of us without resorting to drill sergeant tactics. He constantly finds new methods of explaining and practicing each technique and is eminently patient with my struggles to master each new challenge. Considering I definitely fall into the old dog category, it is remarkable how many new tricks Tim has been able to teach me.
Todd - Erie, CO

I just wanted to say that Tim is my FAVORITE and thank you tons for not g iving up on me, especially on my most frustrating days. It means a lot and this class has made me a lot stronger and has made my self esteem go up tons! I LOVE IT, LOVE IT, LOVE IT! So if you are not in crossfit, you should be! Its the BOMB!
Taylor 16

Tim is the epitome of an excellent fitness instructor. I felt safe learning and trying new exercises and experienced huge performance improvements because of Tim's expert instructions. Furthermore, Tim provides the perfect amount of motivation to help me get through even the toughest challenges and I constantly found myself redefining my personal limits of strength and endurance with each workout. Best of all, Tim is passionate about sharing his love for CrossFit and kettlebells with his clients which makes grueling workouts something I look forward to. Thanks, Tim!
Mike - Boulder, Colorado

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