Born on March 16, 1965, in Rio de Janeiro, Brazil, Cezar Guimarães entered the world of Brazilian Jiu-Jitsu not as an outsider seeking the art, but as a child for whom the art was already home. His father, Walter Guimarães, was an accomplished Carlson Gracie black belt, and young Cezar stepped onto the mats for the first time at the age of four — a foundation few practitioners in the modern era can claim.

Cezar's early training took place at the original Carlson Gracie Academy, a historic space in Nossa Senhora de Copacabana, Zona Sul, Rio de Janeiro, shared at the time between Carlson Gracie and his brother Rolls Gracie — before Carlson relocated to his iconic academy on Figueiredo Magalhães street. Training regularly in Rolls Gracie's classes, Cezar shared the mats with some of the most celebrated names in the art's history, including Royler Gracie, Royce Gracie, and the Machado Brothers.

Following the untimely passing of Rolls Gracie, Cezar committed fully to the Carlson Gracie Academy, deepening the lineage connection that would define his career and teaching philosophy for decades to come.

Alongside his BJJ development, Cezar Guimarães pursued a parallel and equally serious path in Judo through training at Gama Filho University in Rio de Janeiro. The environment was exceptional — he trained alongside Brazilian World and Olympic medalists under respected national instructors Geraldo Bernardes and Leopoldo Pinto de Lucas. That immersion in elite Judo culture sharpened his understanding of throwing mechanics, timing, and body control at the highest level.

Guimarães earned a black belt in Judo and translated that technical foundation into competitive achievement, earning a place on the Brazilian national junior Judo squad — a distinction that places him among a select group of grapplers who have reached elite status across two distinct martial disciplines. On the regional circuit, he captured the Rio de Janeiro State Championship title and the Interstate Championship between Rio de Janeiro and Minas Gerais, building a competitive record that reflected the full breadth of his grappling education.

In January 1986, Carlson Gracie determined that Cezar Guimarães had earned the right to wear the black belt — the culmination of a lifetime on the mats that began at age four. The promotion carried deep symbolic weight: as a gesture of respect for the family lineage, Carlson Gracie had Walter Guimarães personally present the belt to his son. The act honored not only Cezar's individual achievement but the intergenerational bonds of family and lineage that lie at the heart of the art.

Guimarães stood among the formative black belt generations shaped by the Carlson Gracie Academy — a lineage renowned for producing technically rigorous, competition-hardened practitioners. Years later, Carlson Gracie called upon Guimarães to return to the academy's main south-side location as an instructor, a role he fulfilled from approximately 2004 until Carlson Gracie's passing in 2006. That final chapter under the Carlson Gracie roof reinforced both the trust his master placed in him and the continuity of values he would carry forward into his own teaching career.

Living in the Méier neighborhood in the northern zone of Rio de Janeiro, Cezar Guimarães recognized the geographic and cultural distance between his community and the established academies concentrated on the city's south side. With that awareness, he opened his own space under the name Casquinha Jiu-Jitsu, deliberately planting the art in an area that had historically lacked a prominent grappling institution of its own.

Following Carlson Gracie's passing in 2006, Guimarães channeled his energy fully back into Méier, and Top Brother was established that same year. The catalyst for the team's formation came from one of Guimarães's own black belts, Marcelo Nigue, who was transitioning into MMA competition. Recognizing that a complete fighter required more than grappling, Guimarães brought in Muay Thai coach Vander Valverde to handle the striking component of Nigue's preparation. The partnership proved highly effective, and Guimarães and Valverde formalized their collaboration — grappling and striking working in concert — by establishing Top Brother as a full-fledged team.

Top Brother grew rapidly into one of the premier training centers in northern Rio de Janeiro, building a reputation for developing competitive talent across both Brazilian Jiu-Jitsu and MMA. The academy's consistent output of capable fighters in both disciplines stands as Guimarães's most enduring contribution to the grappling and combat sports communities of Rio de Janeiro.