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Ultimate Ninjas St. Louis is a premier gym for both kids and adults, featuring a wide range of obstacle courses that cater to various skill levels. Located in Chesterfield, MO, it offers a fun yet challenging environment with clean facilities and ample parking. Whether you're looking to enhance your ninja skills, strengthen your body, or just have a great time, this gym delivers a supportive and engaging community.

The highly attentive and friendly staff ensures each participant gets the most out of their experience, making it a popular spot for birthday parties and group classes. Safety and proper instruction are prioritized, making it enjoyable and beneficial for all ages.

Pros:

  • Friendly and attentive staff
  • Clean and well-maintained facilities
  • Great for all ages
  • Wide range of obstacle courses
  • Supportive and engaging community
  • Flexible class schedules and camps
  • No pressure to sign up for memberships
  • Perfect for birthday parties
  • Trainers focus on safety and proper instruction

Cons:

  • Issues with class timing on Sundays
  • Some injuries reported during activities
  • Occasional lack of engagement from some staff members

Location / Contact

Rating Stats

4.7

out of 5.0

1 reviews
5.0
1 reviews
4.0
1 reviews
3.0
3 reviews
2.0
74 reviews
1.0

Reviews (80)

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My children have grown leaps and bounds over their past year at Ultifit! The staff are amazing, patient and kind, and so friendly!! Even when my little guy doesn't want to do anything, they are able to work with him and coax him into giving it a little try, and my older son's confidence has improved so much when trying new skills.

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We loved what they offered the kids for the birthday package. They had an amazing time.

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Our family loves it here! The staff is always so friendly and helpful!

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All staff were very friendly and accommodating. My son and his friends enjoyed a great birthday party. Thanks everyone!

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Ultimate Ninjas has been the absolute best for my almost 5 year old son. He’s been taking weekly classes for almost a year now! Not only is he gaining strength and athletic skills, but his perseverance and confidence are growing, too! The community is so incredibly uplifting, supportive, and positive. We love it here!

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I’m writing a detailed review for parents interested in Lil Ninjas: I took my 3 y/o son for a trial class on a Sunday. The building opens at 9am and class was scheduled to start at 9, which confused me a little. We arrived at 9:04 and class was already in full swing (no pun intended! so make sure you’re early/on time). We didn’t get much instruction, just a wrist band and told to join the group (possibly because we were late?). Initially we were placed with “big kids” (4/5 year olds) so my kiddo was overwhelmed and shy- and so was Mom. The teacher picked up on that and was very patient with him and gave him extra attention. He also allowed me to stay nearby. We eventually joined the group of smaller kids which was a much better fit.I’m giving 5 stars because I was impressed and pleased with the teachers. While young, they were great with the kiddos; patient, attentive, and kept them focused. My son has participated in other activities where the young teachers weren’t as great.The activities and equipment were age appropriate and clean. Balance beams, soft crash mats, a climbing ramp thing, climbing wall and ropes. The teachers taught my son to hold his arms out “like an airplane” to help balance so they actually do instruct. They took water breaks, stretched, and did a ninja hands in cheer at the end. So while an individual sport, it had a team feel.The place appeared clean and didn’t have that “gym” smell. I also appreciated that there was no pressure to sign up for classes.

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Fun place for homeschool kids to let out some steam. They have all the course components to train for Ninja warriors. I live in South County, so I won't be going often.

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Hosted a party for a 7 year old …Kids had an amazing time! Thank you to Jake for all the engagement and commitment he had with the kids ! He was amazing and even learned all the kids name ! Super recommended we will definitely had another party here .

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Cool place. The kids had a blast and were all tuckered out when we left.

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We absolutely love Ultimate Ninjas not only for the fantastic classes, but the staff as well. They are always so welcoming and encouraging. They make sure every single kid in class is able to do their best on every obstacle course and feel good about it. The birthday parties they host are phenomenal as well. Thank you Brie, Austin, Will, Ben, and everyone I haven't mentioned for being amazing people!

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Frequently Asked Questions

Except the peak hours, this place remains quite free or moderately crowded.

This business has a rating of 4.7-star.

This business has 80 reviews.

The address is: 140 Long Rd Suite 130, Chesterfield, MO 63005, United States .

The contact number is +1 636-206-8550

This service is listed under Gym .

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