El Jefe 100

The El Jefe 100 returns to Superior, Arizona on April 3rd, inviting runners from across the country to embark on a unique ultramarathon journey through the Sonoran Desert's Sky Island wilderness. This challenging point-to-point course covers nearly 161 kilometers of remote singletrack trails and rugged terrain, winding through cactus-studded deserts and oak woodlands that are home to diverse wildlife and stunning natural vistas.
On race morning in Superior, Arizona, runners will face a landscape marked by early spring temperatures and firm trail conditions. The route begins before dawn when the desert air is still cool from overnight chill but soon warms as the sun rises high above the Sky Islands. UV exposure levels are moderate at around 5 on the index scale, prompting participants to wear sunscreen or protective clothing for prolonged outdoor activity.
The El Jefe Hundred has been a part of the ultrarunning community since its inception by Destination Trail in recent years. This event celebrates both the endurance and resilience needed to traverse such challenging terrain while honoring local conservation efforts aimed at preserving Arizona's unique desert landscapes. With an average field size that varies year-to-year, each runner contributes not just to their personal journey but also supports broader environmental initiatives.
The race course for the El Jefe 100 takes runners on a winding path through remote singletrack trails and rugged terrain, offering breathtaking views of cactus-studded deserts and oak woodlands along the way. The elevation profile includes significant climbs totaling over twelve thousand five hundred feet as well as descents that drop thirteen thousand nine hundred ten feet throughout its length. Aid stations are strategically placed to provide necessary hydration and nutrition during this long-distance trek through Arizona’s scenic Sky Islands.
On race day, temperatures in Superior range from mild early morning coolness to warmer afternoon conditions under clear skies with firm trail surfaces providing stable footing for runners. The UV index at a moderate level of 5 suggests that participants should take appropriate sun protection measures throughout the event.
The El Jefe Hundred offers a single distance: an ambitious and challenging 100 Miler covering approximately 160 kilometers through some of Arizona’s most spectacular landscapes.