About
Cahill's Judo Academy offers classes in Kodokan Judo and Kodenkan Jujitsu, including Kids Judo, Kids Beginner Judo, Kids Judo/Kodenkan Jujitsu, Advanced Juniors Judo, Teen/Adult Judo, Teen/Adult Kodenkan Jujitsu, Adult Kodenkan Jujitsu, and Teen/Adult Judo and BJJ. The program includes options for both kids and teens/adults at different experience levels, with separate beginner and advanced junior judo classes.
• Ages: 5–18 years old
• Schedule: Classes are offered Monday through Saturday, with kids and teen/adult options in the late afternoon and evening on weekdays, and morning and midday options on Saturdays.
• Price: 1 Child or Adult $120/month; 2 Children in the Same Family $180/month
Cahill's Judo Academy was founded in 1948 by Professor John Cahill, and the dojo is now led by his son Willy. The academy has been a recognized name in martial arts for over 70 years and has produced several Olympians and nearly 1,000 national and international champions. Willy Cahill has been an Olympic, Paralympic, and Pan Am Games judo coach, has coached other regional and national judo teams and judokas, and holds a 9th degree black belt in Kodokan Judo and a 10th degree in Kodenkan Jujitsu. Tournaments for both junior and senior athletes are held throughout the Bay Area, as well as national and international competitions. The academy offers a free trial class, and CNN has done a story on Coach Willy Cahill.
Last updated February 13, 2026.
• Ages: 5–18 years old
• Schedule: Classes are offered Monday through Saturday, with kids and teen/adult options in the late afternoon and evening on weekdays, and morning and midday options on Saturdays.
• Price: 1 Child or Adult $120/month; 2 Children in the Same Family $180/month
Cahill's Judo Academy was founded in 1948 by Professor John Cahill, and the dojo is now led by his son Willy. The academy has been a recognized name in martial arts for over 70 years and has produced several Olympians and nearly 1,000 national and international champions. Willy Cahill has been an Olympic, Paralympic, and Pan Am Games judo coach, has coached other regional and national judo teams and judokas, and holds a 9th degree black belt in Kodokan Judo and a 10th degree in Kodenkan Jujitsu. Tournaments for both junior and senior athletes are held throughout the Bay Area, as well as national and international competitions. The academy offers a free trial class, and CNN has done a story on Coach Willy Cahill.
Last updated February 13, 2026.
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