proudly celebrating 48 years in dobbs ferry!
Join our fun and exciting kids karate classes today!
Serving the communities of Dobbs Ferry, Irvington, Hastings-on-Hudson, Ardsley, Yonkers & Tarrytown since 1977.
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!
2024 - 2025 CLASS SCHEDULE
MONDAY:
4:30 - 5:15pm KIDS KARATE (Ages 4-7)
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:
4:30 - 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 Private Lessons
FRIDAY:
Private Lessons Available Upon Request
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
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 48 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 48 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.
Hanshi Guzman continues providing teaching, knowledge and mentorship to the Dojo on a daily basis.
JOIN THE FUN!!
OUR PARTNERS
Holiday / School Closing Camp
Parent's Night Out
We are fortunate enough to have long lasting relationships with many schools in Westchester where we are able to share our love for Karate with many more students. You can find us teaching at the following:
Temple Beth Shalom, Hastings-on-Hudson
Elizabeth Mascia Childcare Center, Tarrytown
The Christian Pre-School, Dobbs Ferry
The Community Nursery School, Dobbs Ferry
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