President Luiz Inácio Lula da Silva of the Workers Party won Brazil's presidential runoff for a fourth nonconsecutive term, The Guardian and G1 reported. With every section counted, Lula took 51.79 percent of valid votes, about 64.3 million ballots. Flávio Bolsonaro of the Liberal Party took 48.21 percent, about 59.8 million. The gap was about 4.3 million votes after a race that flipped from Flávio's first-round lead.

G1 said Lula won 13 states and Flávio won 13 states plus the Federal District. The closest large state race was Minas Gerais, where Lula finished at 50.43 percent to 49.57 percent. Lula won strong shares in the Northeast. Flávio swept the South, the Center-West, and several other states including São Paulo and Rio de Janeiro. Lula called the result a defeat for denialism. He turns 81 on Tuesday.

Flávio refused to concede. He cited a decision to extend voting by two hours. The Guardian said both camps had asked for more time for different reasons. No court had ruled on an annulment bid when the pages published. Analysts said a second-round comeback of this kind is rare in Brazilian democracy since 1985.

Crowds of Lula supporters celebrated with fireworks as results locked in. The Guardian framed the win as a fresh test for Brazil's climate goals and for ties with the wider world. G1 mapped the state splits in detail for readers watching the late count.

Lula's win ends a tense runoff that began after Flávio's surprise first-round lead. Party aides on both sides watched late totals from Brasília as the court posted the last sections. Allies cast the night as a vote for calm after years of hard fights over crime and the Amazon.

Vote totals locked after a long night of counting. Lula's team claimed a clear win. Flávio's team kept up its challenge talk.

What we know: Lula won 51.79 percent to 48.21 percent. Flávio says he will seek annulment over the extension.
What we don't: Whether any annulment bid will be filed or succeed, and how Congress will line up.