**Wellington Fagundes (PL) holds a 60% implied probability lead in the Mato Grosso governor race, ahead of incumbent Otaviano Pivetta (Republicanos) at 38%, with other candidates such as Doutora Natasha (PSD) and minor contenders trailing far behind.** The contest centers on two right-leaning figures in a state dominated by agribusiness interests, where Fagundes draws strength from his Senate record, PL party machinery, and support in northern and interior regions. Pivetta, who assumed the governorship in March 2026 after Mauro Mendes’s departure, has gained ground in the latest Paraná Pesquisas survey (September 6–8), reaching 40.8% to Fagundes’s 30% in a stimulated first-round scenario and leading head-to-head 47.2%–38.3%. Earlier polls showed tighter or reversed margins, highlighting volatility amid roughly 50% undecided or blank voters. Fagundes’s higher rejection rates and Pivetta’s approval of his administration remain key variables one month before the October vote, with regional alliances, security, and fiscal policy stances likely to influence final turnout and swing blocs.