About
Ruffhouse Renton offers Kids Muay Thai, Kids Jiu Jitsu, Kids Wrestling, and Brazilian Jiu Jitsu. Kids Jiu Jitsu is grouped into Peewees ages 5-8, Juniors ages 9-12, and Teens ages 13-17. Kids Muay Thai is listed for ages 9-13, with teens ages 14-17 also mentioned, and Kids Wrestling is listed for ages 6-9 and 10-13.
Programs
- Kids Muay Thai — AGE 9-13 (approximate); Teens 14-17 · Teens ages 14-17 are mentioned as being in between kids and adults; contact the school to set up a trial class.
- Kids Jiu Jitsu — AGE 5-8, AGE 9-12, AGE 13-17 · Kids classes are grouped into Peewees (5-8), Juniors (9-12), and Teens (13-17).
- Kids Wrestling — AGE 6-9, AGE 10-13 · Wrestling seasons are listed as January-March, July-September, and October-December.
- Brazilian Jiu Jitsu — General BJJ program at Ruffhouse Renton; the page mentions a six-week beginner trial and that beginners attend the Beginner class for 6 weeks before joining other classes.
At a glance
- Ages: 5–18 years old
- General schedule: Kids Muay Thai, kids Jiu Jitsu, and kids Wrestling are offered; wrestling seasons are January-March, July-September, and October-December. Beginner adults in BJJ attend the Beginner class for 6 weeks before joining other classes.
About the provider
Ruffhouse is a family-owned, Renton-based martial arts school founded by Professor Arthur in 1999. The About page says Ruffhouse Jiu Jitsu has expanded across the United States, with affiliates in Columbus, Ohio, San Francisco, California, and the Seattle area. The school says each student becomes a valued part of the community, and advanced students help by assisting younger and newer students.
The school says it is for all levels of experience and all fitness levels. It says no one is too old for jiu jitsu. Beginner adults must attend the Beginner class for 6 weeks before jumping into the rest of classes. Open mats are available to any adult student and a few approved teen students. The gym says you do not have to roll with anyone you don’t want to.
Last updated August 19, 2026.
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