Ultimate Ninjas St. Louis

Kids Classes
Birthday Parties
Kids Open Play
Events
Adult Fitness
St. Louis Gym Hours
Kids Classes
M | W | Th: 4:30 pm - 7:30 pm
Tues: 4:30 pm - 6:30 pm
Fri: 4:30 pm - 5:30 pm
Sat: 8:30 am - 9:30 am
Kids Birthday Parties
Sat: 2:00 pm - 9:00 pm
Sun: 2:00 pm - 7:00 pm
Family Open Play
Fri: 7:00 pm - 9:00 pm
Sat: 9:30 am - 2:00 pm
Sun: 9:00 am - 2:00 pm
Homeschool Open Gym
Thu: 1:00 pm - 3:00 pm
Adult Open Gym
Mon | Wed: 7:30 pm - 9:30 pm

Quick Links

Kids Classes
Birthday Parties
Kids Open Play
Events
Adult Fitness

Upcoming Events

Kids / Adults Competition!

Come out to Ultimate Ninjas St. Louis to take part in our First Ninja Competition run by Pro American Ninja Warrior Kirsti Pratt! Kids from all over have been coming to Ultimate Ninjas for the best ninja training around, and now it's time to test their skills!
Kids: Saturday March 23
Adults: Sunday March 24
Ages 6-8
Sat
8:00 am - 10:30 am
$35.00
Sign Up!
Ages 9-10
Sat
11:00 am - 1:30 pm
$35.00
Sign Up!
Ages 11-12
Sat
2:30 pm - 5:00 pm
$35.00
Sign Up!
Ages 13-16
Sat
5:30 pm - 8:00 pm
$35.00
Sign Up!
Ages 17+
Sun
8:30 am - 4:30 pm
$50.00
Sign Up!

Spring Break / Summer Camps

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Looking for something AMAZING to offer your kids over break? Send them to Ultimate Ninjas Camps, where they will learn how to tackle obstacles as seen in the hit TV show American Ninja Warrior. At Ultimate Ninjas it's so much fun to get back up and try again.....

At Ultimate Ninjas, we instill self-confidence, acceptance, and a true hunger for tackling obstacles with a positive mindset. The best part: we have a BLAST doing it! Led by 3 time American Ninja Warrior competitor Kirsti Pratt, you will not find a more positive environment where kids can show up, be valued for exactly who they are, and discover what they are uniquely capable of achieving.

During camp, kids are grouped together by age and rotate through stations where they are coached on each obstacle. After learning how to tackle the obstacles, they have time for open play so they can pick their favorites and spend extra time on the obstacles they want to master or just enjoy! At the end of camp all kids will get a chance to run through the course with their coaches just like you see on TV!

Pricing

$45 each session, weekly sign up is $205 | 50% sibling discount

Spring Break Camps

March 18-22nd
Camps: 9:30AM - 12:15PM
Open Play: 1PM - 3PM
Register Here!

Summer Camps

May & July
Mon-Fri: 9:30AM - 12:15PM
Open Play: 1PM - 3PM
July
Mon-Fri: 9:30AM - 12:15PM
No Open Play
Register Here!

St. Louis Schedule

Kids Classes

Build self-confidence and prepare to reach higher than you ever imagined. Classes are designed and led by American Ninja Warriors who train to conquer the same obstacles seen on the NBC hit, American Ninja Warrior. Challenge yourself. Be Awesome. Have FUN!
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Birthday Parties

Kids love our obstacles and indoor play areas. This party place is just for you with your very own indoor arenas and party room! Planning birthday parties has never been so easy with our online reservations.
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Family Open Play

Get out all of their energy on our obstacle and agility courses! Practice and explore a variety of obstacles, fine tune your skills on a single obstacle, or practice running our customizable courses.
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Adult Fitness

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Join a community of people coming together to pursue their passion for movement and to help each other become better. We welcome those who are looking to be part of a supportive community that will inspire you to break limits and achieve things you previously thought impossible.
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Meet our General ManagerKirsti Pratt


Kirsti is a 3 time American Ninja Warrior and one time Vegas Finalist. You can also see her on 2 seasons of Ninja VS. Ninja where she remains undefeated even after running against popular ninjas like Jesse Graff.

Kirsti’s passion is to grow the ninja community and promote the ninja lifestyle of being able to play and have fun while staying in shape, eating healthy, treating people kindly, and supporting fellow ninjas.

Kirsti has a Certification as a CHEK Practitioner which helps her bring her fitness knowledge of functional training to her ninja classes. She has been competitive her whole life playing many different sports like soccer, ice hockey, golf and racquetball. When she started competing for American Ninja Warrior at 21 years old she was just coming off of a stress fracture in her low back. When Kirsti first started she had to learn how to scale things to the basics and work her way up from there becoming a strong female competitor now. She cannot wait to teach our Jr Ninjas those same basic skills and life lessons.

What our customershave to say about us


We just threw my daughter’s 6th birthday party here and it was wonderful! They were very helpful and accommodating. Our guests had a great time and the staff assigned to help our party could not have been nicer. I would recommend this for a party venue (or just a fun open play/class activity) to anyone!Hannah B.
I brought my 11YO son today for open gym and he absolutely loved it! It definitely became more crowded after 12:30, but the staff was great and offered assistance when requested. The obstacles were just like the show and are easy to try, but challenging to master. We will be back for sure!Amy J.