Flávio Bolsonaro holds a strong trader consensus lead in the 2026 Brazilian presidential runoff due to his first-round performance of roughly 47% against incumbent Luiz Inácio Lula da Silva’s 45%, which advanced both candidates to the October 25 vote. Recent national polls, including Datafolha and others, show the race tightening to a statistical tie or narrow Flávio edge on valid votes, driven by mixed public assessments of Lula’s administration—where negative ratings slightly outweigh positive ones—and sustained conservative mobilization around the Bolsonaro family and Liberal Party strength in Congress. Final debates, voter turnout in key regions, and last-minute campaign efforts remain the primary variables that could influence the outcome before resolution.