Ulises Mejía Haro holds the clearest edge in the Zacatecas gubernatorial race at 46% implied probability, followed by Verónica Díaz Robles at 32%, as traders price in his consistent lead in early internal preference surveys within the dominant Morena coalition ahead of the 2027 contest. A fragmented field of other aspirants, including José Narro Céspedes, Geovanna Bañuelos de la Torre, and opposition figures, trails with single-digit or lower shares, reflecting limited polling traction and party machinery disadvantages. The tight spread between the top two stems from the still-fluid Morena nomination process, where both candidates show viability in head-to-head matchups against rivals, combined with the long timeline before the general election and limited recent statewide polling. Upcoming internal votes, coalition negotiations, or new surveys could widen gaps by clarifying frontrunner status or exposing vulnerabilities in support among key voter blocs.