Bruce Ishikawa

Middlesex County

Jessie Castellano

Boston Metropolitan Area

Marlborough

Massachusetts

Worcester County

Northborough

William Hall

Framingham

Westborough

Sudbury

Wayland

Holliston-Hopkinton

Shrewsbury

Acton

Natick

Grafton

USA Ninja Challenge - Marlborough, MA

Join us for an exciting Open House at USA Ninja Challenge Marlborough! We are thrilled to welcome you to our state-of-the-art obstacle course gym designed specifically for kids. Whether you've already registered for classes or are just discovering us, this event is for you!
Here is what you can look forward to:
Facility Tours: Take a guided tour of our gym and learn about our structured programs, progressive classes, and the amazing benefits of ninja training for your child!
Try the Obstacles: Let your kids test their skills on our custom-designed ninja obstacle courses! Please note: To experience the obstacles safely, the kids will be led through the gym in groups by our coaches. This is not an open gym.
 SAVE TIME: Sign our waiver ahead of time under the "Tickets" link to skip the line when you arrive!&nbsp;<a href="https://app.waiverfile.com/b/marlborough/Waiver.aspx?id=8c4fc96a-fb27-42ab-9b6c-a4d247d084da&amp;direct=true" rel="nofollow noopener" target="_blank">WAIVER</a>
Raffle Prizes: Enter for a chance to win awesome prizes, including free class passes, a free birthday party, exclusive merchandise, and more! 
Special Offers: Take advantage of exclusive discounts on memberships and class packages available only on the day of the event!
Fun, Fitness, &amp; Confidence: Our programs are designed to help kids build strength, agility, and confidence in a safe, supportive, and high-energy environment.
We are currently accepting registrations for our weekly classes, vacation clubs, and birthday parties! This Open House is the perfect opportunity to learn more about what we offer and secure your child's spot. 
 Want a preview? Check out our YouTube page to see our gym in action: <a href="https://l.facebook.com/l.php?u=https%3A%2F%2Fwww.youtube.com%2F%40NinjaMarlborough%2Fplaylists%3Ffbclid%3DIwcGRvZgFleHRuA2FlbQIxMABicmlkETFXUGtWYXZQYmg0ZDJ1MTRLc3J0YwZhcHBfaWQQMjIyMDM5MTc4ODIwMDg5MgABHo8g1k3XRlF0fBIKfCh1wEy_ab6X5GQs1GwCqPtSXYlojPJCbO1W5ZbXySdS_aem_xM9KqNYiLjBfp7_Qpa3Psw&amp;h=AUA8VpegqglF6AYRsLPItu_lbUgxHvPyu4SWMgWGmAiLXwHuZ6P7fjRjr1pW8KW92mUX3r_zlsyGTudfyL5c0n8pXhWipP38TrkcgsFcsQ6CWI6XEXG_NCISsa14TgDDyZP1FviojKx6x6x_45y8F6W0xbpt8A&amp;__tn__=q&amp;c%5b0%5d=AUBbmXyuU2yzkXQlsoYbut03wTAxFB1bdO7J5WdvSEeHBcFuxxA2BtUtdH6egM2SRLTNcjvgcllF4Nr8wKkYs7DG9bZd7kK3Eh6XLarzlwCoMvxqJR_eFKMPzUqlXv53G6xS8EwQ3Pmq7SXkhb64UI5FbnON-gZEQlQ" target="_blank" rel="nofollow noopener">https://www.youtube.com/@NinjaMarlborough/playlists</a>
Bring your family and friends - we can't wait to meet you and introduce your kids to the awesome world of ninja training! Learn more: <a href="https://l.facebook.com/l.php?u=https%3A%2F%2Fninjamarlborough.com%2F%3Ffbclid%3DIwcGRvZgFleHRuA2FlbQIxMABicmlkETFXUGtWYXZQYmg0ZDJ1MTRLc3J0YwZhcHBfaWQQMjIyMDM5MTc4ODIwMDg5MgABHt0WSVJHTf0MR_s3E3BvIZR8LORSM63PQOOIM5dyVLMEvrdLMgWP2XdcoIOH_aem_fenffQMB-JafULbK0MTpiw&amp;h=AUCxuaqCCs4ebkTjjBeSAsFmsM7tjiYwBeKkiKh6ZUUhebolb14PYfxX87NkjJw-RL0oZymeP0heJT6GWBPfeyjt12L1mbg5zHC80TgZrKPV3WpIwXDc1IFRyxLeCdJipsT_R9KZCcZk0AP3dPH39q6aY-PDtg&amp;__tn__=q&amp;c%5b0%5d=AUBbmXyuU2yzkXQlsoYbut03wTAxFB1bdO7J5WdvSEeHBcFuxxA2BtUtdH6egM2SRLTNcjvgcllF4Nr8wKkYs7DG9bZd7kK3Eh6XLarzlwCoMvxqJR_eFKMPzUqlXv53G6xS8EwQ3Pmq7SXkhb64UI5FbnON-gZEQlQ" target="_blank" rel="nofollow noopener">ninjamarlborough.com</a> 
Questions? Call us at 774-206-8057 
marlborough@usaninjachallenge.com
See you there!

Local Event: Open House - Ninja Obstacle Gym - USA Ninja Challenge

Open House - Ninja Obstacle Gym - USA Ninja...

Join us for an exciting Open House at USA Ninja Challenge Marlborough!  We are thrilled to welcome you to our state-of-the-art...

Open House - Ninja Obstacle Gym - USA Ninja Challenge

Be a part of the 79th season! Auditions for the Worcester Youth Orchestras are happening in May!&nbsp; All students grades 3 and up pursuing &nbsp;string, wind, brass, harp, jazz piano, jazz guitar, drum set and percussion are eligible to audition. Multiple days and times to choose from. Visit the link to schedule your audition!

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Local Event: August 2026 Auditions

August 2026 Auditions

Be a part of the 79th season! Auditions for the Worcester Youth Orchestras are happening in May!  All students grades 3 and up...

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Open House - Ninja Obstacle Gym - USA Ninja Challenge

August 2026 Auditions