Endurance & Ultras

Simon Guérard — Running with Simon | Ultra Marathon Trail Running for Everyone

Simon Guérard — Running with Simon. French-Canadian ultra runner on a mission to complete 100 races of 100 miles or longer while …

Aid Stations at Ultramarathons — What's There, What to Expect, and How They Work

Aid stations are the lifeline of an ultramarathon — spaced every 6 to 15 miles with food, water, medical support, and crew access. …

How an Ultramarathon Is Structured — Start to Finish, Cutoffs, Buckles, and Everything Between

A 100-mile race is not just a long run. It is a structured event with a start window, cutoff times, mandatory gear checks, defined …

Medical Support at Ultramarathons — EMTs, Medic Tents, IV Fluids, and What Happens When Things Go Wrong

Every major ultramarathon runs a medical operation alongside the race — EMTs at key stations, roving medics on course, protocols for …

Sally McRae — Moab 240 Champion, Grand Slam of 200s, Choose Strong

Sally McRae — professional mountain and ultra runner, Nike athlete, and the second woman in history to complete the Grand Slam of …

Should I Run an Ultramarathon? An Honest Assessment for People Considering Something Crazy

If you are sitting here wondering whether running 50 or 100 miles is something you could or should do, this is the honest version of …

What Happens If an Ultramarathon Runner Gets Lost on Course?

Ultramarathon courses are marked, but runners do get lost — some briefly, some seriously. Here is how courses are marked, what GPS …

What Is a Pacer in an Ultramarathon? Everything You Need to Know

A pacer is a person who runs alongside an ultramarathon competitor to provide companionship, navigation help, and mental support …

Badwater 135 — The World's Toughest Foot Race

The complete guide to Badwater 135 — 135 miles from Death Valley to the base of Mount Whitney in July. Starting 282 feet below sea …

Bandera 100K — Where Hans Troyer Announced Himself

The complete guide to Bandera 100K in the Texas Hill Country — a Western States Golden Ticket qualifier famous for its cedar breaks, …

Barkley Marathons — The Race That Eats Its Young

The complete guide to the Barkley Marathons — the most mysterious and punishing endurance event in the world. 100 miles, 60,000 feet …

Bear 100 — Utah and Idaho's Autumn Monster

The complete guide to Bear 100 in the Bear River Mountains on the Utah-Idaho border — 22,000 feet of gain through aspen groves and …

Black Canyon 100K — The Desert Crucible

The complete guide to Black Canyon 100K — a Western States Golden Ticket race through Arizona desert canyons and exposed ridgelines. …

Canyons 100K — Hans Troyer's Golden Ticket Race

The complete guide to Canyons 100K in the Sierra Nevada foothills — the race where Hans Troyer finished 2nd and earned his Golden …

Cocodona 250 — Arizona's 250-Mile Desert Crossing

The complete guide to Cocodona 250 — a 250-mile non-stop ultramarathon through the Arizona desert from Black Canyon City to …

Hans Troyer

Hardrock 100 — The Hardest Hundred in America

The complete guide to Hardrock 100 — 33,000 feet of gain at 11,000-foot average altitude in the San Juan Mountains of Colorado. The …

Iditarod Trail Invitational — 350 Miles in Alaska Winter

The complete guide to the Iditarod Trail Invitational — a 350-mile self-supported race on the Iditarod Trail from Anchorage to …

Javelina Jundred — The Desert Party That Hurts

The complete guide to Javelina Jundred in the Sonoran Desert outside Phoenix — a loop-course 100-miler known for its Halloween …

JFK 50 Mile — America's Oldest Ultramarathon

The complete guide to the JFK 50 Mile in Maryland — the oldest ultramarathon in the United States, running since 1963. Appalachian …

Lavaredo Ultra Trail — The Dolomites at Night

The complete guide to the Lavaredo Ultra Trail — a 120-kilometer loop through the Dolomites of northeastern Italy. Vertical rock …

Leadman — The Leadville Triple

The complete guide to Leadman — completing the Leadville Trail Marathon, Silver Rush 50, Leadville 100 MTB, and Leadville Trail 100 …

Leadville Trail 100 — The Race Across the Sky

The complete guide to the Leadville Trail 100 — 100 miles at 10,200 feet base elevation in the Colorado Rockies. The race that …

Mike McCalley