Govind Tekale
Brazil’s presidential race is heading to a second round after neither candidate secured more than 50% in the October 4 first-round vote. Flávio Bolsonaro of the Liberal Party received 47.03% of the vote, while incumbent Luiz Inácio Lula da Silva received 45.16%, with 99.99% of precincts counted according to the Tribunal Superior Eleitoral. The runoff is scheduled for October 25. The margin of approximately 1.87 percentage points means neither candidate enters the second round with a dominant lead.
The official first-round results are reported by the Tribunal Superior Eleitoral, Brazil’s federal electoral court, which manages and validates the country’s electronic ballot system.
What the first-round numbers show
Geographic results showed that regions along the BR-163 agricultural export corridor in the states of Mato Grosso and Pará showed strong support for the challenger, according to preliminary geographic results. These are areas where soy and cattle operations are dominant. Urban centers and coastal regions showed stronger support for Lula. Any characterization of what drove individual voters requires actual precinct data and should not be inferred from occupation or livelihood alone.
Congressional results also showed gains for conservative candidates in both chambers. The specific composition and whether it creates a veto-override threshold requires final certified Chamber and Senate results, which have not been fully established at the time of this report.
Why the Amazon question turns on more than who wins the presidency
Brazil’s National Institute for Space Research (INPE) uses two monitoring systems: PRODES for annual deforestation estimates and DETER for rapid alerts. INPE’s latest PRODES data for the 2025 reporting period show a deforestation rate of 5,731 square kilometres across the nine-state Legal Amazon, a 12.07% decrease from the 2024 figure of 6,518 square kilometres. Deforestation enforcement has been a central policy difference between the two candidates, with the current administration reactivating federal enforcement agency Ibama in the arc of deforestation as a key measure.
The Marco Temporal is a legal dispute over the cutoff date used to determine Indigenous land demarcation rights — not a mining-concessions framework. Its resolution in the courts and legislature directly affects Indigenous land protections in forested regions.
For investors, importers, and supply chains operating under European anti-deforestation regulation, the runoff result creates different potential compliance environments depending on who wins. The European Union’s Deforestation Regulation requires commodity importers to demonstrate their products did not originate from recently deforested land, and the feasibility of meeting that standard depends significantly on whether Brazil’s satellite monitoring and enforcement infrastructure is maintained or dismantled.
The Amazon Fund, financed by Norway and Germany and used to support deforestation prevention programs, has historically tied disbursements to verified enforcement outcomes. The outcome of the October 25 runoff will set Brazil’s environmental enforcement trajectory for the next four years.
Related reporting and primary sources: Brazil election law reference; INPE deforestation data; Amazon monitoring data.
