Final count
| Candidate | Party | Votes | Share |
| MARCOS ROGÉRIO | PL | 537,370 | 56.9% |
| ADAILTON FURIA | PSD | 189,547 | 20.1% |
| HILDON CHAVES | UNIÃO | 134,355 | 14.2% |
| EXPEDITO NETTO | PT | 72,851 | 7.7% |
| PEDRO ABIB | MDB | 6,591 | 0.7% |
| SAMUEL COSTA | PSB | 4,344 | 0.5% |
| Total votes | 945,058 | |
Turnout 78.3%: 990,313 ballots from 1,265,008 registered voters.
TSE EA20 result file, round 1, generated 23 Oct 2026 19:32:24 Brasília time: final totalisation ('tf': 's', 'and': 'f'), 4,698 of 4,698 polling sections totalised on 4 Oct 2026 at 19:50:40 (Brasília time, UTC-3). Rows: each candidate's ballot name and party as the TSE writes them, with nominal votes. totalVotes = valid votes ('vv', nominal only: no party-label votes for this office) 945,058; ballots = attendance ('c') 990,313; electorate ('te') 1,265,008; blank 23,607, null 21,648. Elected in round 1 (absolute majority of valid votes, Constitution art. 28 with art. 77): MARCOS ROGÉRIO (PL), status 'Eleito'. Diplomação (by 18 Dec 2026) is a later formality and does not change the count. Observed: the TSE result file for RO (governor, cargo 3, election 6259) shows the final totalisation ('tf': 's', 'and': 'f', all 4,698 polling sections) on 4 Oct 2026 at 19:50:40 Brasília time, recorded as 2026-10-04T22:50:40Z. Published by Tribunal Superior Eleitoral, 23 Oct 2026: resultados.tse.jus.br/oficial/ele2026/6259/dados/ro/ro-c0003-e006259-u.json. Official publication of the TSE; no reuse terms stated. Lei 9.610/1998 art. 8 IV (planalto.gov.br/ccivil_03/leis/l9610.htm, read 25 Oct 2026): "Não são objeto de proteção como direitos autorais [...] os textos de tratados ou convenções, leis, decretos, regulamentos, decisões judiciais e demais atos oficiais".
The authority's own page is the primary source for this result; this page is a copy of it.