The Piauí Senate race features a dual-vote system for two seats, with recent polling (Datafolha, AtlasIntel, Amostragem, GP1) showing Marcelo Castro (MDB), Ciro Nogueira (PP), and Júlio César (PSD) in a technical three-way tie for the top positions amid high undecided and blank/null rates. Trader odds for second place reflect this fragmentation, pricing Júlio César highest among the trio followed closely by Ciro Nogueira and then Castro, as government-aligned candidates (Castro and Júlio César) consolidate support from the PT-led state base and federal alliances while Ciro Nogueira draws from opposition strongholds but carries elevated rejection. The absence of major late-August catalysts, combined with persistent indecision and the strategic distribution of second-preference votes, sustains the narrow margins; shifts could emerge from final-week endorsements, regional turnout patterns, or campaign events before the October 4 ballot.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedPiauí Senate Election: 2nd Place
Julio Cesar 34.0%
Ciro Nogueira 31%
Marcelo Castro 25%
Francinaldo Leão 1.8%
$24,207 Vol.
$24,207 Vol.

Julio Cesar
34%

Ciro Nogueira
31%

Marcelo Castro
25%

Francinaldo Leão
2%

Toinho Dufrango
1%

Tiago Junqueira
1%

Alexandre Mariano
1%

Maria Madalena Nunes
1%

Jardenya Bezerra
<1%

Major Paulo Roberto
<1%

Cloves José
<1%

Antônio José Lira
<1%

Pastor Sena
<1%

Irmão Evandro Marques
<1%

Dionisio Carvalho
<1%

Missionário Evandro Craveiro
<1%

Antônio Barros
<1%

Danniel Rocha
<1%

Jorge Lopes
<1%

Pedro Laurentino
<1%
Julio Cesar 34.0%
Ciro Nogueira 31%
Marcelo Castro 25%
Francinaldo Leão 1.8%
$24,207 Vol.
$24,207 Vol.

Julio Cesar
34%

Ciro Nogueira
31%

Marcelo Castro
25%

Francinaldo Leão
2%

Toinho Dufrango
1%

Tiago Junqueira
1%

Alexandre Mariano
1%

Maria Madalena Nunes
1%

Jardenya Bezerra
<1%

Major Paulo Roberto
<1%

Cloves José
<1%

Antônio José Lira
<1%

Pastor Sena
<1%

Irmão Evandro Marques
<1%

Dionisio Carvalho
<1%

Missionário Evandro Craveiro
<1%

Antônio Barros
<1%

Danniel Rocha
<1%

Jorge Lopes
<1%

Pedro Laurentino
<1%
This market will resolve according to the candidate who wins the second-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 second-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, 6:13 AM ET
Resolver
0x69c47De9D...This market will resolve according to the candidate who wins the second-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 second-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...The Piauí Senate race features a dual-vote system for two seats, with recent polling (Datafolha, AtlasIntel, Amostragem, GP1) showing Marcelo Castro (MDB), Ciro Nogueira (PP), and Júlio César (PSD) in a technical three-way tie for the top positions amid high undecided and blank/null rates. Trader odds for second place reflect this fragmentation, pricing Júlio César highest among the trio followed closely by Ciro Nogueira and then Castro, as government-aligned candidates (Castro and Júlio César) consolidate support from the PT-led state base and federal alliances while Ciro Nogueira draws from opposition strongholds but carries elevated rejection. The absence of major late-August catalysts, combined with persistent indecision and the strategic distribution of second-preference votes, sustains the narrow margins; shifts could emerge from final-week endorsements, regional turnout patterns, or campaign events before the October 4 ballot.
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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