Ground Rules Jiu Jitsu in Tinley Park, Illinois is a Brazilian Jiu-Jitsu academy that offers programs for both kids and adults in a family-friendly environment. The gym features experienced instructors who prioritize creating a safe and welcoming atmosphere where students can learn at their own pace without feeling intimidated. The facility maintains high cleanliness standards with quality mats and offers trial periods for newcomers to experience the supportive community atmosphere.