the brazilian confederation of muay thai provides a listing of all affiliated schools and instructors in rio de janeiro for individuals looking for official information.

the federation of judo of rio de janeiro state has a calendar listing of all judo events in the area along with athlete rankings and technical information - the office is located at rua pedro i in the center of the city.

liga de judo do estado do rio de janeiro features a yearly calendar with judo events in the area.

the brazilian confederation of judo provides a plethora of information on events, athletes and relevant news.