Final count
| Candidate | Party | Votes | Share |
| PROFESSORA DORINHA | UNIÃO | 386,260 | 45.5% |
| VICENTINHO JÚNIOR | PSDB | 372,848 | 43.9% |
| LAUREZ MOREIRA | PSD | 69,967 | 8.2% |
| ATAIDES DE OLIVEIRA | NOVO | 13,173 | 1.6% |
| PROF WITER NAVES | PSOL | 5,109 | 0.6% |
| DU PEREIRA | DC | 1,272 | 0.1% |
| Total votes | 848,629 | |
Turnout 81.7%: 963,810 ballots from 1,180,433 registered voters.
TSE EA20 result file, round 1, generated 4 Oct 2026 21:18:59 Brasília time: final totalisation ('tf': 's', 'and': 'f'), 4,384 of 4,384 polling sections totalised on 4 Oct 2026 at 20:59:57 (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) 848,629; ballots = attendance ('c') 963,810; electorate ('te') 1,180,433; blank 27,085, null 88,096. No candidate won an absolute majority of valid votes: PROFESSORA DORINHA (UNIÃO) and VICENTINHO JÚNIOR (PSDB) go to the runoff of 25 Oct 2026 (status '2º turno'), so no winner is marked. Diplomação (by 18 Dec 2026) is a later formality and does not change the count. Observed: the TSE result file for TO (governor, cargo 3, election 6259) shows the final totalisation ('tf': 's', 'and': 'f', all 4,384 polling sections) on 4 Oct 2026 at 20:59:57 Brasília time, recorded as 2026-10-04T23:59:57Z. Published by Tribunal Superior Eleitoral, 5 Oct 2026: resultados.tse.jus.br/oficial/ele2026/6259/dados/to/to-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.