- Will Daniela Mulheres Socialistas win the most votes in the 2026 Rio Grande do Sul Senate election?<1¢
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- Will Manuela D'Ávila win the most votes in the 2026 Rio Grande do Sul Senate election?27¢
- Will Marcel Van Hattem win the most votes in the 2026 Rio Grande do Sul Senate election?51¢
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- Will Pimenta win the most votes in the 2026 Rio Grande do Sul Senate election?6¢
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- Will Renato Jaguarão win the most votes in the 2026 Rio Grande do Sul Senate election?<1¢
- Will Ric Jones win the most votes in the 2026 Rio Grande do Sul Senate election?<1¢
- Will Rigotto win the most votes in the 2026 Rio Grande do Sul Senate election?<1¢
- Will Sanderson win the most votes in the 2026 Rio Grande do Sul Senate election?8¢
The Brazilian Federal Senate election for Rio Grande do Sul is scheduled to take place on October 4, 2026. 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).
A fragmented field of more than a dozen declared candidates for Rio Grande do Sul’s two open Senate seats has produced tightly clustered trader probabilities, with Marcel Van Hattem (NOVO) at 50.5% and Manuela D’Ávila (PSOL) at 26.5% among the clearer names while most others sit near even odds. Early July Quaest polling showed D’Ávila at 12%, followed by Germano Rigotto (MDB) and Paulo Pimenta (PT) at 9% each, Van Hattem at 7%, and Ubiratan Sanderson (PL) at 6%, all within the margin of error. Candidate registration closed in mid-August with limited subsequent consolidation, and recent debates have focused on regional priorities without establishing separation. Trader consensus reflects this uncertainty, pricing several contenders near parity; late coalition adjustments, stronger polling surges by any single name, or turnout shifts among right-leaning versus left-leaning voters could reorder first-place odds ahead of the October vote.