Summer CaMP!! 3 WEEKS: AUG 11 - AUG 29. New Students save $50 per week!

Ryu Renshi-Dan Karate / Dobbs Ferry Karate
Ryu Renshi-Dan Karate / Dobbs Ferry Karate

Serving the communities of Dobbs Ferry, Irvington, Hastings-on-Hudson, Ardsley & Tarrytown since 1977.

Join our fun and exciting kids karate classes today!

Join our fun and exciting kids karate classes today!Join our fun and exciting kids karate classes today!Join our fun and exciting kids karate classes today!
Join Us Today
Learn More

Serving the communities of Dobbs Ferry, Irvington, Hastings-on-Hudson, Ardsley & Tarrytown since 1977.

Join our fun and exciting kids karate classes today!

Join our fun and exciting kids karate classes today!Join our fun and exciting kids karate classes today!Join our fun and exciting kids karate classes today!
Join Us Today
Learn More
Breaking boards - karate is about concentration, focus and determination!

Welcome to Ryu Renshi-Dan Karate School

Come and join Westchester's longest operating karate school!! Train with the best and become a skilled Karate practitioner. Our experienced instructors provide quality training for all ages and skill levels. Join us today!

Find out more

2024 - 2025 CLASS SCHEDULE

Kids karate classes...join the fun!

MONDAY:

4:30 - 5:15pm Private Lessons 

5:15 - 6:00pm KIDS KARATE (Ages 5-8) 

6:15 - 7:00pm KIDS KARATE (Ages 9-12)

7:15 - 8:00pm BLACK BELT CLASS

TUESDAY:

4:30 - 5:15pm Jr. Leadership Team Training 

5:15 - 6:00pm KIDS KARATE (Ages 5-8) 

6:15 - 7:00pm KIDS KARATE (Ages 9-12)

7:15 - 8:00pm TEEN BLACK BELT CLASS

WEDNESDAY:

4:30 - 5:00pm LITTLE NINJAS (Ages 3-4)

5:15 - 6:00pm KIDS KARATE (Ages 5-8)

6:15 - 7:00pm KIDS KARATE (Ages 9-12) 

7:15 - 8:00pm TEEN/ADULT CLASS

THURSDAY:

4:00 - 8:00pm PRIVATE LESSONS 

*This block of time is reserved for private and semi-private lessons only. 

FRIDAY:

5:15 - 6:00pm KIDS KARATE (Ages 5-8)

6:15 - 7:00pm KIDS KARATE (Ages 9-12)

SATURDAY:

9:15 - 9:45am LITTLE NINJAS (Ages 3-4) 

10:00 - 10:45am KIDS KARATE (Ages 5-8)

11:00 - 11:45am KIDS KARATE (Ages 9-12) 

12:00 - 12:45pm WEAPONS CLASS (Ages 5+) 

2:00 - 6:00pm BIRTHDAY PARTIES

SUNDAY:

9:00 - 11:00am PRIVATE LESSONS 

12:00 - 4:00pm BRTHDAY PARTIES

About Ryu Renshi-Dan Karate

Shihan Chris. Our chief instructor. You will see him out on the floor during classes instructing.

Our Instructors

Our Instructors

Our Instructors

Shihan Chris Tortu

Owner and Chief Instructor 

6th Degree Black Belt 


Shihan Chris has been involved in the martial arts for over 30 years. He has extensive experience in the arts and teaching all age groups. Shihans father, Hanshi Jose Guzman, founder and grandmaster of the style had emersed Shihan Chris into everything karate from a young 

Shihan Chris Tortu

Owner and Chief Instructor 

6th Degree Black Belt 


Shihan Chris has been involved in the martial arts for over 30 years. He has extensive experience in the arts and teaching all age groups. Shihans father, Hanshi Jose Guzman, founder and grandmaster of the style had emersed Shihan Chris into everything karate from a young age. 


You can still find Shihan and his father, Hanshi, instructing classes at the dojo on a weekly basis. Their combined nearly 100 years of training makes for quite the experience for any student. 


Shihan Chris supervises all daily operations of the dojo as well as all instructors and assistant instructors. 


Shihan and staff also teach at various local nursery schools, daycare facilities, summer camps and recreation departments. 


During the day you can find Shihan roasting some delicious coffee at his company, Double Barrel Roasters in Yonkers, NY. 

Our Programs

Our Instructors

Our Instructors

We offer a range of programs to meet the needs of students of all ages and skill levels. From our children's karate classes to our advanced black belt training, we have something for everyone . Our programs are designed to provide a well-rounded karate education that focuses on technique, strategy, and physical fitness.


We strive for all o

We offer a range of programs to meet the needs of students of all ages and skill levels. From our children's karate classes to our advanced black belt training, we have something for everyone . Our programs are designed to provide a well-rounded karate education that focuses on technique, strategy, and physical fitness.


We strive for all of our students to find the love for the martial arts. We believe in making the most out of our students both inside and outside of the dojo. 


We believe in starting a student young  with working on their listening, gross motor skills and understanding their bodies. Our very popular Little Ninjas program is designed for ages 3-4 and they will learn and be introduced to all the wonderful things karate has to offer!


At DF Karate, we believe that karate is more than just a physical activity. We strive to instill discipline, respect, and self-confidence in all of our students, which they can carry with them for the rest of their lives. 

About Us

Our Instructors

About Us

Ryu Renshi-Dan Karate has built an incredible reputation over the last 47 years. 


Ryu Renshi-Dan, meaning "The Way of the Honorable People" was founded in 1977 by Hanshi Jose Guzman, 9th degree Black Belt. 


Ryu Renshi-Dan is an eclectic blend of 3 traditional Japanese arts: Shotokan, Goju and Isshinryu. 


Hanshi Guzman was the Chief Instructo

Ryu Renshi-Dan Karate has built an incredible reputation over the last 47 years. 


Ryu Renshi-Dan, meaning "The Way of the Honorable People" was founded in 1977 by Hanshi Jose Guzman, 9th degree Black Belt. 


Ryu Renshi-Dan is an eclectic blend of 3 traditional Japanese arts: Shotokan, Goju and Isshinryu. 


Hanshi Guzman was the Chief Instructor from 1977 - 2009. During his tenure he produced many National champions in both forms and fighting. Hanshi and his students spent many weekends traveling the Country and putting RRD on the map as a fierce contender. 


In 2009, Hanshi passed over the reigns of the Dojo to his son, Chris. Shihan Chris has been involved in the martial arts his whole life. 


Shihan really took the dojo to the next level and expanded programming to run 6 days a week. Shihan Chris has now developed some amazing Black Belts of his own that you can find helping out with classes and teaching weekly. 


JOIN THE FUN!!

Fighting practice is an important part of a students martial arts training.

SUMMER CAMP 2025!

Holiday / School Closing Camp

Parent's Night Out

We are offering the following dates: 

AUGUST 11 - AUGUST 15

AUGUST 18 - AUGUST 22 

AUGUST 25 - AUGUST 29

* * 8am - 5pm**

Ages 4+

-Camp is available to students, non-students, siblings etc. 

You may sign-up for individual days as well as full weeks. 

For more information, please reach out to Shihan Chris: rrdsenseichris@gmail.com 

Parent's Night Out

Holiday / School Closing Camp

Parent's Night Out

Once a month we offer amazing Saturday night events for our students and friends! Sorry, but parents can not stay! You will have to go out and enjoy dinner alone! 





 


Holiday / School Closing Camp

Holiday / School Closing Camp

Holiday / School Closing Camp

No School? No Problem! 

We offer full day camps on all school holidays and vacations. See list below of all dates being offered. 


2025 - 2026 School Year Camps:

Tuesday, September 23

Wednesday, September 24

Thursday, October 2

Monday, October 13

Monday, October 20

Tuesday, November 4

Tuesday, November 11

Monday, January 19

February 16 - February 20

F

No School? No Problem! 

We offer full day camps on all school holidays and vacations. See list below of all dates being offered. 


2025 - 2026 School Year Camps:

Tuesday, September 23

Wednesday, September 24

Thursday, October 2

Monday, October 13

Monday, October 20

Tuesday, November 4

Tuesday, November 11

Monday, January 19

February 16 - February 20

Friday, March 20 

March 30 - April 3

Thursday, June 19 


Hours 8am - 5pm 

Cost: $120 per day 

Sibling discounts offered

For more information, please reach out to 

Shihan Chris: rrdsenseichris@gmail.com 

914-693-3707 

The Power of Karate: Our School in Photos

    01/19

    Events

    Check back regularly for updates events, holiday break camps, parents night out events

    6/8/24 - 6/12/24

    Belt Testing

    8am

    -

    5pm

    Dojo

    Event Details

    6/8/24 - 6/12/24

    Belt Testing

    Saturday, June 8: 9:15am Little Ninjas 

    Saturday, June 8: 10am Kids

    Saturday, June 8: 11:15am Kids 9+

    Monday, June 10: 6pm 

    Wednesday, June 12: ...

    Event Details

    8am

    -

    5pm

    Dojo

    Contact Us

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    Ryu Renshi-Dan Karate

    95 Main Street, Dobbs Ferry NY

    914-693-3707

    Hours

    Mon

    04:00 pm – 08:30 pm

    Tue

    04:00 pm – 08:30 pm

    Wed

    04:00 pm – 08:30 pm

    Thu

    04:00 pm – 08:30 pm

    Fri

    04:00 pm – 08:30 pm

    Sat

    08:00 am – 03:00 pm

    Sun

    By Appointment

    Private Lessons are availabe upon request.

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