Flávio Bolsonaro overtakes Lula on Polymarket ahead of Brazil election

For the first time in the 2026 Brazilian presidential cycle, a Bolsonaro is leading on Polymarket. Flávio Bolsonaro, the right-wing challenger and son of former President Jair Bolsonaro, has climbed to an implied victory probability of roughly 52%, while incumbent President Luiz Inácio Lula da Silva sits at approximately 45%. Polymarket’s Brazil presidential election market has now exceeded $147 million in total trading volume. A race that tightened fast Earlier in 2026, Lula held comfortable leads on both Polymarket and in traditional polling. A September 10 poll conducted by AtlasIntel and Bloomberg found that in a hypothetical runoff scenario, Flávio and Lula are essentially deadlocked: 46.4% to 46.2%. Jair Bolsonaro’s own odds on Polymarket hover between 1% and 2%. The former president faces eligibility constraints that have effectively sidelined his candidacy. Why Polymarket’s signal carries weight Prediction markets have a track record of outperforming polls in contested elections. Built on blockchain technology, Polymarket allows participants to buy and sell shares in outcome contracts, with prices reflecting the crowd’s real-time consensus on probabilities. The platform als...