**Ulises Mejía Haro holds the highest implied probability among named candidates in the 2027 Zacatecas gubernatorial contest, followed by Verónica Díaz Robles, amid a fragmented field of more than two dozen options.** The race remains wide open more than a year before the vote because no formal party nominations have occurred and internal Morena polling continues to shift. Mejía Haro has recently consolidated support among party founders and historical militants while maintaining leads of roughly two-to-one in several internal surveys; Díaz Robles and other aspirants such as Alfonso Ramírez Cuéllar and Noemí Berenice Luna Ayala trail but retain organized backing. As the dominant party in the state, Morena’s eventual standard-bearer is widely viewed as the presumptive favorite, keeping probabilities compressed until the selection process clarifies. Scheduled party conventions, additional polling releases, and any late endorsements or alliances could quickly widen gaps among the leaders.