Wikipedia Introduction to Ultra-Marathons

International Association of Ultra Runners

Road and Path Ultra-Marathons

Biel/Bienne 100 km

Comrades Marathon

Grand Union Canal 145 mile Race

Haney to Harrison 100k Ultra

London to Brighton

Dartmoor Discovery

Spartathlon

Two Oceans Marathon

Way Too Cool 50 Kilometer

JFK 50 Mile

The Namibian 24h Ultra Marathon

TW 50k Ultra

Keys 100

Mountain and Off-Road Ultra Marathons

Addo Elephant Trail Run

Al Andalus Ultra Trail

American River 50 Mile Endurance Run

Angeles Crest 100 Mile Endurance Run

Barkley Marathons

Bear 100 Mile Endurance Run

Bighorn Trail Run

Bull Run Run 50 Mile

Burning River 100 Mile Endurance Run

Canadian Death Race

Elizabeth’s Furnace Fat Ass 50K

Evergreen Trail Runs

Grand Canyon Ultra Marathon

Grand Raid de la Réunion

Grindstone 100 Miler

Hardrock Hundred Mile Endurance Run

Jay Challenge

HAT Run

Kettle Moraine 100 Endurance Runs

Knee Knackering North Shore Trail Run

Leadville Trail 100

Lean Horse Ultramarathon

Mourneway Ultra Marathon

McNaughton Park Trail Runs

Miwok 100K Trail Race

Mountain Masochist Trail Run

North Face 100

Oil Creek 100 Trail Runs – 50K, 50 & 100 miles

Old Pueblo 50 Mile Endurance Run

Oxfam Trailwalker

Quad Dipsea

Rennsteiglauf

Scorched Sole

StumpJump 50k

TransRockies Run, 6 stages, 125m

Ultra-Trail du Mont-Blanc

Vermont 100 Mile Endurance Run

Wasatch Front 100 Mile Endurance Run

Way Too Cool 50K

Western States Endurance Run

Wickham Park Marathon, 50M, 100M, 200M

Extreme Conditions Ultra Marathons

Marathon des Sables

6633 Ultra: The Arctic, Canada

Badwater Ultramarathon

4 Deserts

Namibian ultra marathon

Kalahari Augrabies Extreme Marathon

Pinhoti 100 Mile Endurance Run Alabama

Arrowhead Winter Ultramarathon

Al Andalus Ultra Trail

Extremely Long and Multiple-Day Ultra-Marathons

Al Andalus Ultra Trail 230 km over 5 days in Poniente Granadino, Andalucia, Spain.

Bruce Trail, Ontario, Canada 800 kilometers in (10–15 days).

Bunion Derby, Los Angeles to New York 3,455 miles (3 months).

Lake Balaton Supermarathon, Hungary (4 days)


Self-Transcendence 3100 Mile Race


Spreelauf (Germany) 420 kilometers / 261 miles / 6 days


Trans Europe Foot Race / 4000+ kilometers /3 months

Trans-Gaule (France)