Recent Datafolha polling shows Ciro Nogueira (PP), Marcelo Castro (MDB), and Júlio César (PSD) in a technical tie for the two Piauí Senate seats, with each in the mid-teens amid heavy undecided and blank/null responses. Incumbents Nogueira and Castro seek re-election against the federal deputy, while roughly 20 total candidates fragment the field. Higher rejection for Nogueira and persistent voter indecision have sustained the close contest through mid-August surveys, aligning with market pricing that treats first-place outcomes as uncertain. Late-campaign polling shifts, turnout patterns among key blocs, or clarified alliances could separate the leaders before October voting.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedPiauí Senate Election: 1st Place
Ciro Nogueira 44%
Marcelo Castro 40%
Julio Cesar 3.5%
Alexandre Mariano <1%
$32,473 Vol.
$32,473 Vol.

Ciro Nogueira
44%

Marcelo Castro
40%

Julio Cesar
13%

Alexandre Mariano
<1%

Antônio Barros
<1%

Antônio José Lira
<1%

Cloves José
<1%

Danniel Rocha
<1%

Dionisio Carvalho
<1%

Francinaldo Leão
<1%

Jardenya Bezerra
<1%

Jorge Lopes
<1%

Maria Madalena Nunes
<1%

Missionário Evandro Craveiro
<1%

Pastor Sena
<1%

Pedro Laurentino
<1%

Tiago Junqueira
<1%

Toinho Dufrango
<1%

Major Paulo Roberto
<1%

Irmão Evandro Marques
<1%
Ciro Nogueira 44%
Marcelo Castro 40%
Julio Cesar 3.5%
Alexandre Mariano <1%
$32,473 Vol.
$32,473 Vol.

Ciro Nogueira
44%

Marcelo Castro
40%

Julio Cesar
13%

Alexandre Mariano
<1%

Antônio Barros
<1%

Antônio José Lira
<1%

Cloves José
<1%

Danniel Rocha
<1%

Dionisio Carvalho
<1%

Francinaldo Leão
<1%

Jardenya Bezerra
<1%

Jorge Lopes
<1%

Maria Madalena Nunes
<1%

Missionário Evandro Craveiro
<1%

Pastor Sena
<1%

Pedro Laurentino
<1%

Tiago Junqueira
<1%

Toinho Dufrango
<1%

Major Paulo Roberto
<1%

Irmão Evandro Marques
<1%
This market will resolve according to the candidate who wins the most valid votes of any candidate at the specified election.
Candidates will be primarily ranked by order of valid votes won. If two or more candidates are tied for any position, ties will be broken by alphabetical order of the candidates’ listed full names as they appear in this market. This market will resolve to the candidate that occupies the highest finishing position after applying this ranking.
If the result of this election isn't definitively 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., www.tse.jus.br/eleicoes/resultados-eleicoes).
Market Opened: Aug 17, 2026, 6:05 AM ET
Resolver
0x69c47De9D...This market will resolve according to the candidate who wins the most valid votes of any candidate at the specified election.
Candidates will be primarily ranked by order of valid votes won. If two or more candidates are tied for any position, ties will be broken by alphabetical order of the candidates’ listed full names as they appear in this market. This market will resolve to the candidate that occupies the highest finishing position after applying this ranking.
If the result of this election isn't definitively 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., www.tse.jus.br/eleicoes/resultados-eleicoes).
Resolver
0x69c47De9D...Recent Datafolha polling shows Ciro Nogueira (PP), Marcelo Castro (MDB), and Júlio César (PSD) in a technical tie for the two Piauí Senate seats, with each in the mid-teens amid heavy undecided and blank/null responses. Incumbents Nogueira and Castro seek re-election against the federal deputy, while roughly 20 total candidates fragment the field. Higher rejection for Nogueira and persistent voter indecision have sustained the close contest through mid-August surveys, aligning with market pricing that treats first-place outcomes as uncertain. Late-campaign polling shifts, turnout patterns among key blocs, or clarified alliances could separate the leaders before October voting.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated


Beware of external links.
Beware of external links.
Frequently Asked Questions