The Best Workout in Denver

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Who We Are

All American Fitness was founded in 2018 by Aaron Yost, an Army Veteran who fell in love with the idea of fitness as a sport. Before this, Aaron just wandered from gym to gym, looking for a cheap membership and hoping that each time would be different. Unfortunately, he never found the right experience to help him lose weight and get healthy. Without guidance, without accountability, and without a game plan every new gym membership became more wasted money and more mounting frustration.

Then he found CrossFit. CrossFit’s unique variety of weightlifting, gymnastics, and cardio training provided the experience, the community, and the training needed to push him to be his absolute best, and he wants to share that with you. At All American Fitness we strive to create a comprehensive path for members to develop into competitive athletes through challenging, intentional programming, personal nutrition plans, and recovery programs in an extremely fun and high-intensity training environment.

Our Classes

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Crossfit

Whether you’ve been a CrossFit athlete for a while or have just completed our CrossFit Foundations class, our CrossFit class employs CrossFit’s proven formula of constantly varied functional movements performed at high intensity to create a fun and exciting workout for you.
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Crossfit Express

If you are limited to a one hour lunch break then this is the CrossFit class for you. The programming is the same, but the format is more relaxed. Athletes in this class can feel free arrive late and leave early to accommodate their work commitments.
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Gymnastics

Gain a foundational understanding of CrossFit gymnastics movements from a traditional gymnastics perspective.
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Crossfit Express

If you are limited to a one hour lunch break then this is the CrossFit class for you. The programming is the same, but the format is more relaxed. Athletes in this class can feel free arrive late and leave early to accommodate their work commitments.
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Olympic Weightlifting

All American Weightlifting is a class series designed to fine-tune your Olympic weightlifting skills. Lead by a USAW coach, the pace is slow and the focus is on Olympic weightlifting technique.
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Centered Yoga & Fitness

Members of All American CrossFit receive 4 free classes per month at Outlaw Yoga Littleton’s studio. Named Littleton’s Best Yoga Studio, Outlaw Yoga is technically simple, physically challenging, and a whole lot of fun.
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BODYBUILDING

BodyBuilding is a class series designed to allow the athlete to focus on training one major muscle group at a time. The atmosphere is fun and the music is loud as the class works together through a one hour weightlifting program. Expect to perform five or six exercises that target a single muscle group. This class accommodates beginners, intermediate, and advanced athletes.

HEAR FROM OTHERS

These guys know how to do things correctly! They're supportive, knowledgeable and progressive. I tend to be a bit picky about my gyms and coaches/trainers etc. (my background is in athletic training, Ex. Phys and Kinesiology). They speak my language - trust me, you are in good hands!
Kayla Squires
Kayla Squires
13:36 07 May 20
I’ve done CrossFit for many years and love it but my old place was too far away. I found All American in Centennial through a friend of a friend, and even though I started during quarantine, the coaches made it super easy to keep a good workout routine. All the members I have met are super nice and welcoming. Can’t wait for quarantine to end so I can really get back at it!
Kali M
Kali M
21:22 05 May 20
I found All American CrossFit because I was looking to get conditioned for Police Academy. So glad that I did! These guys have been great! Not only do they provide a great workout that pushes you to get better, they also are very supportive along the way, helping you do well. Not to mention all the extra effort they've invested into making fitness work during the quarantine! I would definitely recommend them.
Christopher Wynn
Christopher Wynn
21:31 16 Apr 20
Dropped in for a workout with friends. Welcoming staff, good instruction, great facilities/equipment, good music - not to mention a heck of a workout!
Kevin J
Kevin J
17:56 06 Feb 20
Very Fun Close Knit Community...They are getting STRONGER in this box!!!
Pat Duran
Pat Duran
15:49 25 Jan 20
Great gym. My family and I came to Littleton from out of town to visit family and we stopped in to do some olympic weightlifting. All American CrossFit was perfect. I don't do CrossFit but they had a really nice setup for weightlifting (like a really nice 20kg eleiko bar) and the people were great. I would recommend them to anyone and we will definitely go back the next time we are in town.
Bo Bolen
Bo Bolen
22:17 24 Jan 20
The instruction and coaching for Olympic weight lifting is the best I've received. The owner worked with me, and they have classes as well
John Cable
John Cable
02:09 06 Jan 20
Visiting from TX and needed a good place to go and get sweaty. Met one of the coaches and he welcomed me as if I had been going there for years. Super chill guy. Clean space with plenty of room to stretch out and get your work in, highly recommend!
Adam C
Adam C
18:21 31 Dec 19
The coaching is great; the programming is great; and the results are great! I would recommend this place to all fitness skill levels.
James Stanesic
James Stanesic
16:19 31 Dec 19
It comes down to 3 simple things. 1. If you are looking for a great community, something you can get behind and believe in this is it. 2. If you want to be a part of the Culture that All American has built; meaning you are surround by like minded people that uplift each other and check their egos at the door, then you have found your home away from home. 3. Coaching, hands down, the coaches have been a huge help in my progress and continued growth as an "older" athlete and allowed me to continue to train and grow. The whole package. Period.
Ricky Wilhoit
Ricky Wilhoit
17:55 11 Dec 19
Awesome coaches, excellent programming, and a great community feel! I would highly recommend this gym to new or experienced Cross-fitters!
Michelle Burchill
Michelle Burchill
15:12 25 Nov 19
If you are looking for an amazing CrossFit workout in the Denver area check these folks out. Great coaches, great facility. The 24/7 access is awesome for getting a workout in on my time.
Mike Ruman
Mike Ruman
21:03 11 Nov 19
Awesome place, great coaches and great members. If you are in the Southglenn area and looking to drop in or join a box this is the place to do it.
Nate Ellert
Nate Ellert
00:16 02 Oct 19
Such a great space to drop into. The community is super welcoming and the programming is hard by fun. Highly recommend stopping by and checking them out.
Kat Haggerty
Kat Haggerty
00:30 02 Jul 19
I recently started the Olympic weightlifting program at CrossFit Southglenn. I am very impressed with the quality of Olympic weightlifting coaching, something you do not always see at Crossfit gyms. Mike is an excellent coach and helped me through some pesky form issues that I've been dealing with for awhile. 5/5 recommend CrossFit Southglenn!
Dr. Riley Kulm DC, MS
Dr. Riley Kulm DC, MS
23:20 15 May 19
Amazing gym family and very knowledgeable coaching staff. I come 3 to 5 days a week and have seen results. Coaches meet you where you’re at, whether you have experience with CrossFit or a total beginner. They make you feel comfortable and push you to be your best self daily!! Love it and if you’re on the fence you should give it a shot, they will not fail to give you your money’s worth.
Erin Lee
Erin Lee
18:18 09 Jan 19
I've been a member of a few CrossFit gyms and All American CrossFit will be my forever gym home. The coaches are so amazing and that's the most important part in my opinion. Mike and Aaron are both encouraging without being annoying. They push without breaking you and they focus on your form and want you to improve. The programming is the best I've encountered and it shows with my personal improvement. They are also good people who support the military. There are all levels of members so don't be intimidated. I don't know why you'd go anywhere else, I drive across town for this level of awesome!
Amber Wermerskirchen
Amber Wermerskirchen
16:05 09 Jan 19
Sophia and Mike are passionate about CrossFit and overall fitness. They’re hard working, extremely fit individuals. They’re welcoming to all people and will help you reach your goals no matter how big or small. If you’re looking for a supportive, friendly environment to lift you up, this is the place for you! I would highly recommend it 🙂
Jenny Antinucci
Jenny Antinucci
20:52 11 Oct 18