USA Ninja Challenge - Hudson, NH

Turning Kids into Ninjas, One Obstacle at a Time!

Memorial Day Camp 5-31-21 10am -1pm

Space still available! Sign up while there's room!

Summer Camp schedule is available!

Go to the Camps page for details. The last couple of camps filled up fast, so don't miss out!

Contact us to register your ninjas for classes at USA Ninja Challenge in Hudson, NH

Dear USA Ninja Challenge Families,

I want to take the opportunity to thank everyone for your business, whether it was through classes, camps, parties, or field trips. It’s truly been a pleasure getting to know you all and your children. Watching all these kids come through the gym, sharing in their successes, and seeing the sense of accomplishment when they conquer an obstacle has been extremely rewarding. To say it’s been a challenging time to be a new business owner would certainly be an understatement. We are doing our best to hold steady and to hold on so that when it’s safe to re-open fully, we can be there for you and your ninjas.

At our core, we believe that physical challenges and conquering obstacles can be transformative for kids. Especially after so many months cooped up, a place like USA Ninja Challenge is -- and will be -- even more important in the physical and emotional development of kids. Therefore, I’m writing to you at this time because safety is our utmost priority and our grounding value. Our coaches are trained on the safety elements of all of our equipment, everything is regularly tested to be sure that it’s in safe working order, and now during the pandemic, we’ve elevated our sanitizing routines and have implemented practices to increase safety for ninjas, families, and our coaches.

The Governor has issued a mask mandate for all indoor public spaces and outdoors where social distancing cannot be accomplished, effective November 20th 2020. This in conjunction with the number of Covid-19 cases in NH and MA increasing at such an alarming rate, has prompted us to institute a mask policy for all students and family members while in our facility, both in the lobby and the gym during class. We had hoped that it would not come to this, but we want to feel we are doing everything we can to keep our ninjas and their families safe. We will also be doing temperature checks with a touch free thermometer on all ninjas as they come in.

We will remain committed to continuing to make USA Ninja Challenge as safe as possible for our community, because we really do believe that we provide a service that is more and more essential to young people as the pandemic wears on.

Please let me know if you have questions, and hope you have a warm and safe Thanksgiving next week.

-Brian and the Hudson Ninja Team

*** Re-opened as of June 3rd 2020 for Ninja classes, camps, and parties ***

I hope that everyone has been safe and healthy during this strange and unprecedented event. With recommendations from the state, we are re-opening for classes as of Wednesday June 3rd, 2020. Classes sizes have been reduced to a maximum of 14 - 16 students for ages 6-17, to comply with the current guidelines for health and fitness centers in NH. We will also be capping our Jr. Ninja classes at a maximum of 10-12 students. There will be 2 coaches per class and social distancing measures will be taking place for all non-family members.

We are happy to be open but want to do so in a safe and structured manner. The safety of your kids and our staff will continue to be a priority as we enter this 1st phase of re-opening. We have implemented additional cleaning and disinfecting protocols for the gym and lobby. Do to this, we have also increased the time in between classes to 20 minutes. This will allow time to disinfect after each class as well as reduce the chance of crossover between incoming and outgoing classes. Kids will be required to wash hands before and after class and there will be hand sanitizer available throughout the gym and lobby.

We have had to adjust the class times to accommodate extra time for disinfecting in between classes. Make-up classes will available to do during classes with enough space and will require reserving a spot in advance. Please get in touch with us by e-mail or by phone to secure a time slot for classes. Class schedule can be found on the website: 

Prior to the start of class, we may do temperature checks with a no touch thermometer. Coaches, athletes and parents will be required to wear masks while at the facility. Coaches will work to ensure social distancing is adhered to during class, but parents should review the importance of this as well as the importance of following instructions prior to returning. Staff will be screened for illness and possible exposures prior to the start of their shift. This may also include a temperature check with a no touch thermometer.

Drinking directly from the water fountain will not be available but the no touch water bottle refilling part will be, so make sure the kids come with a water bottle to class.

Specifically, for cleaning in the gym we will be using a Simple Green disinfectant product used in conjunction with a hand pump type sprayer, that will be applied to all mats, blocks, and frequently touched areas. The product requires at least 10 minutes of contact time before it can be wiped off or simply air dry.

I have also ordered a couple handheld UV lights that we can use on objects like the interchangeable hand holds as well as Lysol disinfectant spray.

The lobby may or may not be open for viewing classes, which will be dependent on class sizes. We certainly want to avoid overcrowding, but some classes are smaller or have multiple siblings so we reserve the right to make judgement calls on a class by class basis. When the lobby is open for viewing we would ask that only 1 member per household stay in the lobby during these classes, masks are to be worn and social distancing guidelines are followed.

The cubbies will not be in use during this time, to avoid close quarter crowding, but we will station chairs appropriately spaced around the lobby area where kids can keep their belongings like shoes and socks or extra layers.

There has been a paragraph added to the waivers for new enrollments that includes language about the risk of exposure to illnesses and viruses. For existing students: Parents/guardians will be asked to sign a Parent agreement form which also includes this paragraph.

We are really looking forward to getting back to working with your kids and helping them achieve their ninja goals!

If anyone is not comfortable returning at this time, your account will remain inactive until such time as you do. We are also offering private lessons for families that are not quite ready for a group class environment. 

Thank You,

Brian and the Hudson Ninja Team

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!

17 Friars Drive
Unit 18/19
Hudson, NH 03051

Fill out my online form.