Winter ultramarathons in Arizona, United States

Scenic desert landscapes, rolling singletrack, quick ascents and descents on a mix of classic and newer trails in McDowell Mountain Regional Park

High desert ultramarathon on the Arizona Trail with out-and-back segments, expansive views, and northern ridgeline passages near the Santa Rita Mountains

Scenic point-to-point 50k road ultra from Oracle to Catalina along the Santa Catalina mountains, net 2,200-foot descent, mostly paved, desert vistas

Elite, invitation-only ultramarathon featuring competitive 24-hour track racing and a select field of accomplished ultrarunners

Steep, rocky paths and open sun exposure on the Maricopa Trail, finishing in Cave Creek Regional Park with wide Sonoran Desert views

Rolling singletrack through saguaro-studded Sonoran desert, with the steep, rocky Goldmine climb and wide-open views in San Tan Mountain Regional Park.

Desert singletrack and foothill paths in Estrella Mountain Regional Park, with Sonoran scenery and 100K or 100-mile options.

Fast 50K route through McDowell Mountain Regional Park, with gently rolling Sonoran Desert trails and wide-open views near Fountain Hills.

Looped 4.1667-mile course through Usery Mountain Regional Park, shifting from rugged trails by day to an out-and-back road at night, with timed hourly starts

50-mile paved route on Tucson’s Loop, starting and finishing at Rillito Park via parks, greenways, and river corridor washes

Rugged singletrack through Oracle State Park and remote Arizona Trail, constant elevation changes, Santa Catalina Mountain views

50-mile loop around Skull Mesa via Trail 4, Chalk Canyon and Seven Springs, with Sonoran Desert singletrack, creekside stretches and rugged canyons

Arizona Trail ultra through the Madrean Sky Islands, with wide-open high desert views stretching toward Mexico.

Rugged Sonoran Desert point-to-point on the scenic Black Canyon Trail, single track and stagecoach paths, challenging climbs in the second half

Rugged Sonoran desert 50K with Arizona Trail stretches, a loop around Picketpost Mountain, saguaro forests, creeks, and rock formations.