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USA Ninja Challenge - Marlborough, MA

Turning Kids into Ninjas One Obstacle at a Time!

Class Closures:

*please check email for any weather/snow related closures*

  • Memorial Day : May 31
  • Fourth of July Weekend : July 2-5

Upcoming Events:

* Looking for more information on these events?  Click here!

  • May 15 : Balance Workshop (2:00p - 3:00p)
  • May 31 : Memorial Day Clinic (9:00a - 12:00p)
  • June 13 : UNAA New England Regionals (sign-up here!)
  • June 21-25 : Summer Clinic Session #1 (9:00a - 12:00p)
  • June 27 : Swinging Workshop (10:00a - 11:00a)
  • June 28 - July 2 : Summer Clinic Session #2 (9:00a - 12:00p)

Our FULL Summer Camp schedule is UP! Head over to the “Clinics” tab to check it out!

Sign-Up Here ]

Fala Portugues?

Manda um email ou liga para nosso gerente, Brandon!  |  (774) 843-2066

* COVID-19 Update *

We are open and running as smoothly as ever!  If you are curious about our new guidelines, or are even considering coming to our gym, please feel free to watch the video (above), and read the full list of new guidelines here.

  • Still not totally comfortable with your kids being in a class with others yet? Don‘t worry!

We are now offering Private Training Sessions!

Whether you’re looking for a 1-on-1 class for your ninja, or a closed class for your “quaran-team,” these sessions are the perfect environment for ultra-safe ninja training.  Check out the Class Schedule tab on this website for more info!

At-home workouts!

Over the shutdown this past Spring, we used our free time to create some workout videos for our kids - and they are free for anyone to watch!  So if you’re looking for a peak into what a piece of each of our classes might look like, check out the video below!


All of our staff members have passed Background Checks, nationally-approved Ninja Instructor Certifications, and there is always at least 1 staff member on the premises who is First-Aid/CPR certified! 

Here are the smiling faces that you and your ninjas can expect to see at Ninja Marlborough!

Ben Powell  |  General Manager  |

Brandon Bento |  Lead Instructor  |

Braden  |  Instructor

Brooke  |  Instructor

Josh  |  Instructor

Sofia  |  Instructor

What USA Ninja Challenge is all About

USA Ninja Challenge is a year-round obstacle course training program that combines basic skill sets from gymnastics, climbing, cross training, and track and field. The sport of Ninja is quickly becoming the most fun and creative way to meet the physical needs of today’s kids! Ninja Challenge is open to boys and girls ages 4 to 17.

Our class program has 6 levels to master with a wide variety of progressions, drills and challenges to tackle. Ninjas that demonstrate their mastery of skills advance to the next level of training. Each Ninja progresses according to their own abilities. The purpose of the program is to build children’s self-esteem, confidence and sense of accomplishment, one obstacle at a time..

We have obstacles to keep kids moving!

    • Box jumps
    • Long jump
    • Jumping over or onto obstacles
    • Jumping from platform to platform
    • From platforms to ropes or cargo nets

    • Ropes
    • Cargo nets
    • Peg boards
    • Rock walls

    • Rings
    • Ropes
    • Hanging ladders
    • Nunchucks
    • Cannon balls

    • Cargo nets
    • Inclines
    • Rock walls
    • Peg boards
    • Ledges
    • Chimney walls

    • Balance beams
    • Slacklines
    • Rolling barrels

    • Running
    • Block pushing
    • Army crawl
    • Vaulting
    • Tumbling

Social Benefits of Physical Activity


Confidence is key to a good social life; physical activity helps with that. As you become stronger and faster, your self-confidence will grow, you’ll be able to take pride in the physical things you can now do and appreciate the progress you’ve made.


Physical activity can also help your concentration skills, by providing a release valve for stress and pressure and encouraging higher levels of endorphins. If you can concentrate well on important work and social tasks, you’ll be happier overall.


Being social is most enjoyable when you feel good about yourself, have a positive self-image and high self-esteem. Exercise can help with that. By maintaining a healthy weight and an uplifted mood, you’ll feel better about yourself and can engage in social activities fully and frequently.

Social Life

One of the biggest social benefits of exercise is just that – an improved social life. Especially if you participate in team sports or exercise with a group, you’ll develop greater empathy and social skills. You’ll also make new friends and gain new social outlets.


Contact Us!

19 Brigham Street, Unit 8
Marlborough,MA 01752

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