News
2024 Tohkon Judo Academy’s Annual Kata Clinic, Chicago February 16/18
Tohkon has been sponsoring this Kata Clinic for roughly 30 years, and as the number of judoka doing kata has grown, more and more people look forward to attending the clinic each year.
2024 Spring USJF Board of Directors, Board of Examiners and National Committee Meetings
– April 4-7, 2024 *** In-Person ***
Location: Washington, DC near Washington Dulles International Airport (IAD)
HQ Hotel: TBD (Near IAD with shuttle service)
Blue Judogis May Bias Competition Outcomes
In this study we investigated the existence of a win bias in judo competition as a function of judogi color.
Judo being a Martial Art of Japan
From Stanford University’s archives
Sensei Robert Harder
It is with great sadness that we share the news that Sensei Robert Harder, Hachidan, passed away Wednesday, January 17, 2024, surrounded by family at the age of 89 years, in Spokane, WA. We wish to...
Hall of Fame
U.S. Judo Hall of Fame Hall of Fame Gallery The U.S. Judo Hall of Fame was established by action of the Board of Directors of USJF in 1989 to acknowledge outstanding judoka who have made major...
Sanctioned Events
2024 Tohkon Judo Academy’s Annual Kata Clinic, Chicago February 16/18
Tohkon has been sponsoring this Kata Clinic for roughly 30 years, and as the number of judoka doing kata has grown, more and more people look forward to attending the clinic each year.
2024 Spring USJF Board of Directors, Board of Examiners and National Committee Meetings
– April 4-7, 2024 *** In-Person ***
Location: Washington, DC near Washington Dulles International Airport (IAD)
HQ Hotel: TBD (Near IAD with shuttle service)
Blue Judogis May Bias Competition Outcomes
In this study we investigated the existence of a win bias in judo competition as a function of judogi color.
Judo being a Martial Art of Japan
From Stanford University’s archives
Sensei Robert Harder
It is with great sadness that we share the news that Sensei Robert Harder, Hachidan, passed away Wednesday, January 17, 2024, surrounded by family at the age of 89 years, in Spokane, WA. We wish to express our deepest sympathy to Harder Sensei’s family. We have lost a...
Hall of Fame
U.S. Judo Hall of Fame Hall of Fame Gallery The U.S. Judo Hall of Fame was established by action of the Board of Directors of USJF in 1989 to acknowledge outstanding judoka who have made major significant contributions to the sport of judo and/or achieved the highest...
| Date | Event | Yudanshakai | Contact |
|---|---|---|---|
| Nov 09, 2025 | The Chaves in House Tournament Cambridge, MA | Rokushu | |
| Nov 15, 2025 | 2025 Nanka Nage no Kata Clinic Lake Elsinore, CA | Nanka | Mary Wakabayashi |
| Nov 15, 2025 | Paul Owen Memorial Tournament Lincoln, NE | Chicago | ✉ Ron Hulshizer (402) 617-9782 |
| Nov 29, 2025 | Big Island Nage no Kata Examination Hilo, HI | 50th State | ✉ Michael Hayashi (808) 330-9909 |
| Dec 05, 2025 | 2025 Winter Nationals Los angeles, CA | Nanka | |
| Dec 06, 2025 | 2025 International Winter Newaza Clinic with Katsu Honolulu, HI | 50th State | ✉ Shintaro Taniguchi (808) 931-0738 |