Lula da Silva and Flávio Bolsonaro stand as the clear frontrunners in Brazil's October 4 presidential election, with recent polls placing Lula at 38-41% and Flávio at 31-37% in the first round. No other candidate, including Ronaldo Caiado, Renan Santos or Romeu Zema, exceeds single digits. Multiple surveys show a runoff between these two as highly probable, given Brazil's history of second-round contests since 2002 and the absence of any candidate nearing 50%. Runoff simulations have tightened sharply, with the latest Nexus poll showing Lula at 46% to Flávio's 45% within the margin of error. The official campaign began August 16, and free television and radio advertising starts August 28 ahead of the October 25 runoff.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedWhich candidates will advance to Brazil's presidential runoff?
$496,621 Vol.

Luiz Inácio Lula da Silva
97%

Flavio Bolsonaro
92%

Renan Santos
5%

Romeu Zema
3%

Michelle Bolsonaro
2%

Ronaldo Caiado
1%

Tarcisio de Frietas
1%

Jair Bolsonaro
1%

Fernando Haddad
1%
$496,621 Vol.

Luiz Inácio Lula da Silva
97%

Flavio Bolsonaro
92%

Renan Santos
5%

Romeu Zema
3%

Michelle Bolsonaro
2%

Ronaldo Caiado
1%

Tarcisio de Frietas
1%

Jair Bolsonaro
1%

Fernando Haddad
1%
This market will resolve to "Yes" if the listed candidate advances to Brazil's presidential runoff election or otherwise wins outright in the first round. Otherwise, this market will resolve to "No".
If the president is decided in the first round of the election but the listed candidate is not the winner or the result of this election isn't known definitively by June 30, 2027, 11:59 PM ET, the market will resolve to "No".
This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the Brazilian government, specifically the Superior Electoral Court (Tribunal Superior Eleitoral, TSE) (e.g., https://dadosabertos.tse.jus.br/).
Market Opened: Sep 18, 2025, 1:53 PM ET
Resolver
0x65070BE91...This market will resolve to "Yes" if the listed candidate advances to Brazil's presidential runoff election or otherwise wins outright in the first round. Otherwise, this market will resolve to "No".
If the president is decided in the first round of the election but the listed candidate is not the winner or the result of this election isn't known definitively by June 30, 2027, 11:59 PM ET, the market will resolve to "No".
This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the Brazilian government, specifically the Superior Electoral Court (Tribunal Superior Eleitoral, TSE) (e.g., https://dadosabertos.tse.jus.br/).
Resolver
0x65070BE91...Lula da Silva and Flávio Bolsonaro stand as the clear frontrunners in Brazil's October 4 presidential election, with recent polls placing Lula at 38-41% and Flávio at 31-37% in the first round. No other candidate, including Ronaldo Caiado, Renan Santos or Romeu Zema, exceeds single digits. Multiple surveys show a runoff between these two as highly probable, given Brazil's history of second-round contests since 2002 and the absence of any candidate nearing 50%. Runoff simulations have tightened sharply, with the latest Nexus poll showing Lula at 46% to Flávio's 45% within the margin of error. The official campaign began August 16, and free television and radio advertising starts August 28 ahead of the October 25 runoff.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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