Final count
| Candidate | Party | Votes | Share | Seats |
| DR. FERNANDO MÁXIMO | PL | 570,799 | 32.4% | 1 |
| BRUNO SCHEID | PL | 474,226 | 26.9% | 1 |
| SÍLVIA CRISTINA | PP | 304,061 | 17.3% | |
| MARIANA CARVALHO | REPUBLICANOS | 207,398 | 11.8% | |
| LUCIANA OLIVEIRA | PT | 96,391 | 5.5% | |
| ACIR GURGACZ | PDT | 72,490 | 4.1% | |
| LUIS FERNANDO | PSD | 23,737 | 1.4% | |
| ENGENHEIRO THULIO | MISSÃO | 7,594 | 0.4% | |
| AIRES MOTA | PV | 3,202 | 0.2% | |
| Total votes | 1,759,898 | | 2 |
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. Two seats, two votes per voter. totalVotes = valid votes ('vv', nominal) 1,759,898, of 1,980,626 votes cast by 990,313 voters (attendance, 'c') out of 1,265,008 registered ('te'); blank 82,933, null 112,479. ballots and electorate are left out because with two votes per voter the valid votes exceed both (the record counts one vote per voter). Not in the rows, as the TSE does not count them as valid: votes for NEIDINHA (PSB, 25,316, 'Anulado sub judice'). Elected (status 'Eleito'): DR. FERNANDO MÁXIMO (PL) and BRUNO SCHEID (PL), seats 1 each; winner marks the most-voted only (the field means 'most votes'). Diplomação (by 18 Dec 2026) is a later formality and does not change the count. Observed: the TSE result file for RO (senator, cargo 5, 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-c0005-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.