Antelope Island Marathon - 26.2 - 13.1 - 10K - 5K

The Antelope Island Marathon offers runners four paved-road options on the largest island in the Great Salt Lake: a full marathon, half marathon, 10K, and 5K. All four distances begin and end at Antelope Island Marina, utilizing island parking and keeping runners near the water. The event also includes a virtual race and invite-only pacer entries for the marathon and half marathon. The course follows Antelope Island roads and the causeway over the Great Salt Lake, with lake views to the east and the island’s mountains to the west. The marathon course features several rolling sections, not just a downhill run. The island's wildlife is a primary attraction, with approximately 600 bison, mule deer, bighorn sheep, and over 400 bird species inhabiting the area. Previously known as the Layton Marathon, all in-person distances are now held exclusively on Antelope Island.