Castoldi's Jujitsu

Castoldi's Jujitsu At Castoldi’s Jujitsu, we aim to make martial arts accessible for everyone. Join us to experience the empowerment of martial arts.
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We believe self-defense is essential and provide quality training at an affordable price. Castoldi's Jujitsu is aimed at making the martial arts work for everyone. Castoldi is known for his weapon disarming techniques. Starting with common mugging situations, students learn to defend from open hand muggers (muggers with no weapons) from in front and behind. Learning along the way, this system inco

rporates knife, club, gun, and multiple attackers from all situations. Examples of real life situations you will be able to handle are: standing and moving attacks from the front as well as behind; attacks while you are sitting, lying on your back, or lying on your stomach. We show you how to defend against any combination of weapons such as knife and gun, club and knife, baseball bats, chains, etc. You will also learn to defend against multiple attackers. Also, it teaches to defend in a situation where you are with a friend or loved one and the weapon is facing them but they are asking for your money. The culmination of your training comes when we blindfold you. This enables the ability to show how well you have learned the system. you learn touch and control and are able to move seamlessly from move to move while your attacker is left helpless to stop you. Professor Castoldi urges women to participate in the classes to learn to defend themselves against muggers, rape attacks, domestic violence, etc.

07/31/2026

Congratulations to Sensei Nick Theodorou on a well-earned retirement and a remarkable legacy of teaching and mentorship through Theodorou Academy of Jiu Jitsu. We wish him all the best in this next chapter.

To any students looking to continue their martial arts journey and deepen their self-defense skills, the doors at Castoldi's Jujitsu are always open. We'd be honored to welcome you to our training family. We'd love to meet you at Castoldi's Jujitsu, stop by for a visit and see what we're all about.

We're at Belmont Day today! Come by to enter to win a t-shirt, a month of free classes, or both! We'll be here until the...
05/16/2026

We're at Belmont Day today! Come by to enter to win a t-shirt, a month of free classes, or both! We'll be here until the event ends at 4 PM!

We will be at Belmont Town Day again this year! Come by our table and say hello.
05/12/2026

We will be at Belmont Town Day again this year! Come by our table and say hello.

🏛️Belmont's 37th Annual Town Day🏛️
Saturday, May 16, 10 AM - 4 PM

Join us for a day of community, food, and fun! Hosted by the Belmont Center Business Association (BCBA).

🚧Road Closure: Leonard Street (from Channing Road to Pleasant Street) will be closed from 7 AM to 6 PM. Please plan your travel accordingly.

👥Town Meeting Booth: For the first time ever, Town Meeting will have a dedicated booth! Stop by to meet Town Moderator Adam Dash and Town Meeting Members. There will be a game and prizes for participants.

🔗Event Schedule & Details: www.belmont-ma.gov/calendar.aspx?EID=2036

Come in and check us out! Your first class is always free!
04/23/2026

Come in and check us out! Your first class is always free!

Happy New Year, folks! May your resolution be to kick some serious butt (literally, come take a self-defense class with ...
12/31/2025

Happy New Year, folks! May your resolution be to kick some serious butt (literally, come take a self-defense class with us) and make it a year to remember! 🎉🥊

Wishing a very safe and happy Thanksgiving to one and all!
11/27/2025

Wishing a very safe and happy Thanksgiving to one and all!

We're at Arlington Town Day today! Come visit us at the west end near the Mill Street intersection!
09/20/2025

We're at Arlington Town Day today! Come visit us at the west end near the Mill Street intersection!

We're at Belmont Town Day at the corner of Leonard Street and Moore Street today! Come by and see us for a chances to wi...
09/14/2025

We're at Belmont Town Day at the corner of Leonard Street and Moore Street today! Come by and see us for a chances to win a Castoldi Jujitsu t-shirt and 1 free month of classes!

Address

14 Park Avenue
Arlington, MA
02474

Opening Hours

Tuesday 7pm - 8:30pm
Thursday 7pm - 8:30pm

Telephone

+17813166663

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