Brazil's First Round Sets Up a Likely Lula-Bolsonaro Runoff
Brazil votes on October 4 in a first-round presidential election that polls indicate could require a runoff on October 25.
Voting is scheduled from 8am to 5pm Brasilia time, 11:00 to 20:00 GMT. If no candidate wins outright, the top two finishers will meet again on October 25. Al Jazeera
The ballot pits incumbent Luiz Inacio Lula da Silva of the Workers' Party (PT) against Senator Flavio Bolsonaro of the right-wing Liberal Party. Lula is 80 and seeking a fourth non-consecutive term, meaning not back-to-back. He served two four-year terms between 2003 and 2011, and his current term began in 2023. Al Jazeera
Flavio Bolsonaro is 45, the eldest son of former President Jair Bolsonaro. The former president is serving a 27-year prison sentence over his role in a coup plot, a plan to seize power illegally, following his loss to Lula in 2022. Al Jazeera
The most recent first-round measure, a CNT/MDA poll reported on October 3, put Lula at 43.1% voter support and Flavio Bolsonaro at 38%. The same poll put Augusto Cury at 3.2% and Ronaldo Caiado at 3%. Reuters
No candidate clears 50%. That threshold, or cutoff, matters. Brazil's October 4 election goes to a runoff if no candidate wins 50% of votes. A runoff is like a playoff final between the top two. Reuters
Other late polls reported similar numbers. A Datafolha poll reported on October 2 showed Lula leading Flavio Bolsonaro 42% to 38% days before the first round, with a potential runoff still a technical tie, or too close to call. Valor International A separate Datafolha reading reported in October put Lula at 45% and Flavio Bolsonaro at 40% of valid votes in the first round. Valid votes exclude blank and spoiled ballots. Folha
Several polls have also tested a runoff between just the two men. A Datafolha poll reported on October 1 showed Lula with 48% and Bolsonaro with 45% in a simulated runoff. Reuters An earlier Datafolha poll reported on September 17 showed Lula with 46% support and Flavio Bolsonaro with 44%, unchanged from the previous Datafolha poll. Reuters Polls suggest Lula and Flavio Bolsonaro are in a virtual tie in a simulated run-off. Al Jazeera
Views of Lula's government were split. Brazil's government was rated negatively by 41% and positively by 35% in the Datafolha poll reported in October 2026. Folha
The final campaign days included several disruptions. Brazil's final 2026 presidential debate was cancelled after the president and the opposition candidate snubbed it. There was a bomb scare outside Brazil's Supreme Court reported on October 2. Al Jazeera The Banco Master scandal disrupted the race. Al Jazeera October 3, the day before the first round, is the last day for distribution of printed campaign materials nationwide.
The broader context here is a contest that combines incumbency with succession politics. Voters are asked to judge an 80-year-old president seeking another term while also deciding whether the Bolsonaro political project transfers to a son and senator. The polling gap in the first round is narrow, and the runoff simulations leave little separation.
Looking at what this means for the next three weeks, the mechanics deserve as much attention as the margin. A first round without a 50% winner resets the field to two names. It concentrates the smaller candidacies, and places weight on rejection rates, regional machines, and turnout discipline. For diplomats and markets watching Brasilia, the question is less who leads on October 4 and more who can expand beyond a core in a head-to-head vote on October 25.
