The Campeonato Carioca Série B1 is the football third level of the First Division annual competition among clubs in the state of Rio de Janeiro, Brazil. Usually, the champion of the level is promoted in the next season to the Campeonato Carioca. It is under the authority of the FERJ or FFERJ (Football Federation of the State of Rio de Janeiro).

The "Brazil Campeonato Carioca B" is a prestigious regional soccer tournament held annually in the state of Rio de Janeiro, Brazil. This competition serves as a vital platform for clubs from the lower divisions of the Campeonato Carioca, showcasing emerging talent and providing teams with the opportunity to ascend to the top tier of Rio de Janeiro football.

Typically featuring a mix of established clubs and up-and-coming teams, the tournament is characterized by its passionate fan base, vibrant atmosphere, and fierce rivalries. Matches are played in iconic stadiums across the region, where supporters come together to celebrate their local teams and the rich football culture of Rio de Janeiro.

The format of the Campeonato Carioca B usually includes a group stage followed by knockout rounds, culminating in a thrilling final that determines the champion. The top-performing teams not only vie for the title but also aim for promotion to the Campeonato Carioca A, the premier state league, making every match crucial for clubs aspiring to elevate their status in Brazilian football.

With its blend of competitive spirit, local pride, and a showcase of emerging talent, the Brazil Campeonato Carioca B is an essential part of the football landscape in Rio de Janeiro, contributing to the development of the sport and the excitement of fans throughout the region.