Ultramarathons in the USA

List of American Ultras

• American River 50 Mile Endurance Run
• Angel Island New Year's 50K
• Angeles Crest 100 Mile Endurance Run
• Badwater Ultramarathon
• The Barkley Ultramarathon
• Bear 100 Mile Endurance Run
• Dick Collins Firetrails 50 Mile
• Hardrock Hundred Mile Endurance Run
• HUFF 50K Trail Run
• Knee Knackering North Shore Trail Run
• Lake Hodges 50k
• Leadville Trail 100
• Lean Horse Ultramarathon
• Leona Divide 50 Mile Run
• McNaughton Park Trail Runs
• Miwok 100K
• Mohican 100 Trail Run
• Mount Diablo Summer 50K
• Old Dominion 100 Mile Cross Country Run
• Quad Dipsea
• Quicksilver 50 Mile, 50K, 25K [1]
• Rio Del Lago 100 Mile
• Salt Point 50K, 26K, 11K
• Salt Point 50K
• Scorched Sole
• StumpJump 50k
• Vermont 100 Mile Endurance Run
• Wasatch Front 100 Mile Endurance Run
• Way Too Cool 50K
• Western States Endurance Run
• Whiskeytown 50K