Hiroshi Ikeda sensei promoted to eighth dan

Please join us in congratulating Hiroshi Ikeda (池田裕) sensei on receiving eighth dan during the 2025 Aikikai Kagamibiraki promotions! We will plan a celebration in the months ahead, please watch for our announcement.

Support our GoFundMe Campaign: Renew our practice space

In 2025, Boulder Aikikai will celebrate 45 years of practice. Boulder Aikikai is starting a capital campaign with a primary goal of replacing the dojo mats and repairing the sub-floor that supports them.

New Students

Join our Introduction to Aikido 8-week series. Aikido is a peaceful, noncompetitive martial art which emphasizes groundedness, connection, flexibility, and resilience.

WELCOME

Boulder Aikikai is an aikido community in Boulder, CO and was established by Hiroshi Ikeda in 1980 for the study of the Japanese martial art of Aikido. The dojo is affiliated with the Aikido World Headquarters in Tokyo, Japan, through the Aikido Shimbokukai. We are a federal non-profit educational organization and welcomes all students who can safely participate in our programs. All of our classes are open for free observation.

NEW STUDENTS

New students are always welcome. We have open enrollment at any time and a focused Introductory Series a few times a year. If you have any questions, please email us!

Introductory Series Info

CLASSES

There are currently two types of classes being offered: virtual and indoor practice. Find the complete schedule on our Classes page.

Class schedule

MEMBER MANAGEMENT

If you are a current Boulder Aikikai member with a monthly membership you may view and update your information through the Zen Planner portal.

Membership management

SUPPORT

Consider supporting Boulder Aikikai with a monthly membership or a one-time donation.

Donate through PayPal

Support options

NOTICE OF NONDISCRIMINATORY POLICY AS TO STUDENTS

The Boulder Aikikai school admits students of any race, color, national and ethnic origin to all the rights, privileges, programs, and activities generally accorded or made available to students at the school. It does not discriminate on the basis of race, color, national and ethnic origin in administration of its educational policies, admissions policies, scholarship and loan programs, and athletic and other school-administered programs.