Recent AtlasIntel/Bloomberg polling from April 22-27 shows President Luiz Inácio Lula da Silva leading Senator Flávio Bolsonaro 46.6% to 39.7% in first-round scenarios for Brazil's October 4 presidential election, yet a statistical tie at 47.5%-47.8% in their simulated runoff, driving trader consensus on a razor-thin contest. Flávio, endorsed by his father Jair Bolsonaro in December 2025, has surged by consolidating the right-wing base amid Lula's middling approval ratings around 44%, narrowing gaps seen in prior Nexus and Quaest surveys. With Flávio at 42.7% and Lula at 37.5%—diverging from polling averages—the market underscores undecided voters (8-16%) and fragmentation among center-right rivals like Romeu Zema (5.8%) and Ronaldo Caiado (1.7%). Party nominations by August and economic data could separate frontrunners.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedFlávio Bolsonaro 42.9%
Luiz Inácio Lula da Silva 38%
Romeu Zema 5.9%
Renan Santos 5.7%
$63,433,725 Vol.
$63,433,725 Vol.

Flávio Bolsonaro
43%

Luiz Inácio Lula da Silva
38%

Romeu Zema
6%

Renan Santos
6%

Fernando Haddad
3%

Camilo Santana
2%

Ronaldo Caiado
2%

Jair Bolsonaro
1%

Michelle Bolsonaro
<1%

Geraldo Alckmin
<1%

Tarcisio de Freitas
<1%

Eduardo Bolsonaro
<1%

Ratinho Júnior
<1%

Eduardo Leite
<1%

Aldo Rebelo
<1%
Flávio Bolsonaro 42.9%
Luiz Inácio Lula da Silva 38%
Romeu Zema 5.9%
Renan Santos 5.7%
$63,433,725 Vol.
$63,433,725 Vol.

Flávio Bolsonaro
43%

Luiz Inácio Lula da Silva
38%

Romeu Zema
6%

Renan Santos
6%

Fernando Haddad
3%

Camilo Santana
2%

Ronaldo Caiado
2%

Jair Bolsonaro
1%

Michelle Bolsonaro
<1%

Geraldo Alckmin
<1%

Tarcisio de Freitas
<1%

Eduardo Bolsonaro
<1%

Ratinho Júnior
<1%

Eduardo Leite
<1%

Aldo Rebelo
<1%
This market will resolve according to the listed candidate that wins this election.
This market includes any potential second round. If the result of this election isn't known by June 30, 2027, 11:59 PM ET, the market will resolve to "Other".
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, 4:02 PM ET
Resolver
0x2F5e3684c...This market will resolve according to the listed candidate that wins this election.
This market includes any potential second round. If the result of this election isn't known by June 30, 2027, 11:59 PM ET, the market will resolve to "Other".
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
0x2F5e3684c...Recent AtlasIntel/Bloomberg polling from April 22-27 shows President Luiz Inácio Lula da Silva leading Senator Flávio Bolsonaro 46.6% to 39.7% in first-round scenarios for Brazil's October 4 presidential election, yet a statistical tie at 47.5%-47.8% in their simulated runoff, driving trader consensus on a razor-thin contest. Flávio, endorsed by his father Jair Bolsonaro in December 2025, has surged by consolidating the right-wing base amid Lula's middling approval ratings around 44%, narrowing gaps seen in prior Nexus and Quaest surveys. With Flávio at 42.7% and Lula at 37.5%—diverging from polling averages—the market underscores undecided voters (8-16%) and fragmentation among center-right rivals like Romeu Zema (5.8%) and Ronaldo Caiado (1.7%). Party nominations by August and economic data could separate frontrunners.
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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