The International Mustang Horse Association (IMHA) is pleased to announce the release of the 2026 Rulebook Update. In 2025, IMHA introduced its first official rulebook. That foundational document established the framework for how we evaluate mustangs, host competitions, and recognize excellence within our community. We also hosted our very first IMHA-produced show in Yamhill, Oregon—an important milestone that marked the beginning of IMHA as an organization offering opportuni

The International Mustang Horse Association (IMHA) reached a major milestone in 2025 by welcoming 78 founding members in three divisions who played a key role in launching the organization. These founding members will always hold a special place within IMHA, recognized for their early commitment and support. Alongside this celebration, IMHA has introduced clear membership benefits that reward both humans and mustangs for their achievements throughout the year and over a lifet

The International Mustang Horse Association is more than an organization — it’s a movement dedicated to celebrating the versatility, resiliency, and potential of the American Mustang.