Last One Standing Ultra Marathon

St. George, United States • 11 Dec 2026

Last One Standing Ultra Marathon : St. George, UT

The Last One Standing Ultra is a self supported loop endurance event held on the Mayor's Loop asphalt trails near the Virgin River in St. George. The adult format uses a roughly 6-mile loop that is repeated multiple times. Runners must complete each loop within a 90 minute cutoff; failure to return in time results in elimination. The event includes a final lap to determine the overall winners.

There is a kids division that uses a 5.3-mile loop. Children may use any non motorized means of transportation on the kids course. The kids loop follows the adult loop except for the first 0.7-mile out-and-back section.

Facilities and logistics are centered at Crosby Family Confluence Park. Packet pickup is held at the park on race day and the park is available for participants to set up personal campsites. An aid station is located about halfway around the loop at St. James Park and will provide water, Gatorade, and Gu energy products; the aid station will be unattended by race staff.

Race rules note that starting early is not permitted, spectators are not allowed in the start/finish corral, and participants should be courteous because the course is open to the public. Awards include lap buttons, a finisher medal for completing the first loop, a belt buckle for completing all 17 loops, and champion prizes for overall winners. Visit the organization's website for the most recent information.

Race information

102 mi
6-Mile Loop (up to 102 Miles)
10 km
Adult Ultra
Visit the organization's website for the most recent information.
Trail runs nearby

A series of trail ultras on April 11, 2026, around Ruby Rider Ranch, Utah, offering distances from a trail half to 100 miles across mesas, slickrock and technical singletrack near Zion National Park.

Trail races in the Santa Clara Reserve near Ivins Utah offering 50K, 30K and a half marathon across looped singletrack and dirt roads, with an expo and on-site packet pickup the day before and race day.

Zion Spartan Trifecta Weekend at Sand Hollow State Park offers Sprint, Super and Beast obstacle races across red sand dunes and desert trails, plus a kids race and spectator access near Zion National Park.

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