Brazil 2026: Second-Place Odds in Presidential First Round

The first round of Brazil’s next presidential election is scheduled for 4 October 2026. This prediction market focuses on a narrower question: which candidate will receive the second-highest number of valid votes in that round. Under Brazil’s two-round system, the runner-up advances to a runoff unless one candidate secures more than 50% of the vote outright. As a result, second place can determine the final opponent for the frontrunner. Trading on this contract has attracted over $4.1 million in volume, indicating significant interest. The market’s real-time pricing points overwhelmingly to one outcome: an 83.5% probability that Flávio Bolsonaro claims the number-two spot. That leaves a combined 18.1% for all other named individuals—a striking degree of confidence in a political contest still two years away. The next-closest contender, Renan Santos, trades at just 9.7%. Current president Luiz Inácio Lula da Silva sits at only 4.0%. Markets appear to view him as far more likely either to win the first round outright or to miss the runoff entirely than to finish second. Behind Lula, a cluster of candidates each attracts minimal betting interest: Camilo Santana (0.8%), Ronaldo Caiado (0.7%), Romeu Zema (0.7%), Fernando Haddad (0.6%), and former president Jair Bolsonaro and Geraldo Alckmin at 0.4% each. Other names listed, including Eduardo Bolsonaro, trade at 0.1% or below. The market will resolve based on the official results from Brazil’s Superior Electoral Court (TSE). If the outcome remains undetermined by 30 June 2027, the contract settles to “Other.” Because the ranking is determined by valid votes—with ties broken by alphabetical order of candidates’ last names—the margin between second and third place could become decisive if the contest tightens. The concentrated probability on Flávio Bolsonaro suggests bettors see a clear path to the runoff for him, even without knowing the full field of candidates or the eventual frontrunner. Whether that confidence holds as the race develops remains to be seen.