Tanshinjuku Aikido 3005 Sterling Circle, Boulder, CO 80301

"The lead instructor, Izawa Sensei, has been teaching Aikido for many decades. His goal is always to better his students and that is apparent in each class. It is a privilege to learn from his deep knowledge and skill."

"I started Aikido over 20 years ago and Tanshinjuku has helped me grow in the art. Izawa Sensei is exceptional in helping each aikdoka grow at their pace and ability. We have fun in class and challenge ourselves to get better."

"Aikikai Tanshinjuku at One Dojo with Kei Izawa Sensei is one of the best kept martial arts/aikido secrets in Boulder!!!! Izawa Sensei is a world renowned, 7th degree black belt who travels all over the world, sometimes teaching seminars to as many as 300 people. We are so incredibly privileged to have a Sensei of his stature teaching right here at One Dojo. I always have a great time and learn so much in Izawa Sensei's classes. He's also just great to sit and chat with about Aikido because he has so much wisdom from his many years of experience and his well-traveled career."

"An excellent school of Aikido taught by an amazing teacher. Izawa Sensei has been very welcoming even to beginners such as myself and his emphasis on teaching technique as well as the heart of Aikido has been extremely encouraging"

"(Updated) A community training center is a perfect idea to bring together different martial arts and programs. I recently visited One Dojo’s traditional Aikido class taught by Izawa sensei/Tanshinjuku Aikido. The dojo is a beautiful setup and location with around 40 tatami (falling) mats decor sharing the culture and martial art programs. Our class was focused around the Aikido Jo and lucky to have focused class from Izawa sensei. This is a great program and the Tanshinjuku classes are very mature and have a long lineage with both Aikikai and Kanai sensei style. I would highly recommend people starting Aikido to try a class and lear Aikido from the Tanshinjuku teachers at the one dojo. enjoyed practicing and meeting Izawa sensei and Cunningham sensei again and enjoyed the new location. Arigatou. Share your experiences and review here as well. … (Previous Review) have trained with Izawa sensei and Tanshinjuku over the last six years. They have a great program and the Aikido is very strong and dynamic. I would recommend this dojo, and encourage you to go see for yourself. Hope to train with them again in the near future. Best of luck to Izawa sensei and his great group of instructors and students!"