The Tocantins gubernatorial race heads to an October 25 runoff between Vicentinho Júnior (PSDB) and Professora Dorinha (União Brasil) after the October 4 first round produced no majority winner. Official tallies showed Dorinha at 45.5% and Vicentinho at 43.9%, confirming a tight contest consistent with pre-election surveys that repeatedly placed the two within the margin of error. Trader pricing reflects this dynamic, with Vicentinho holding a modest edge amid coalition alignments, turnout patterns in key municipalities, and the short campaign window before the second round. Minor candidates remain negligible, as their combined first-round support fell well below thresholds needed to influence the outcome.