Austria

Tiroler Abenteuerlauf 60 KM | 60 kilometers | April 25, 2015 | website

Belgium

Brussels Capital Region

Trail 50 km | 50 kilometers | April 19, 2015 | website

Wallonia

La Bouillonnante – 56 km | 56 kilometers | April 25, 2015 | website

British Virgin Islands

Tortola Torture | 50 kilometers | April 25, 2015 | website

Canada

Ontario

Pick Your Poison 50K Trail Run | 50 kilometers | April 25, 2015 | website

Chile

Ultra Fiord 100K | 100 kilometers | April 17, 2015 | website

Ultra Fiord 70K | 70 kilometers | April 17, 2015 | website

China

Dalian 100 | 100 kilometers | April 18, 2015 | website

Dalian 50 | 50 kilometers | April 18, 2015 | website

Shangri-La 100k | 100 kilometers | April 25, 2015 | website

Shangri-La 50k | 50 kilometers | April 25, 2015 | website

Croatia

100 Miles of Istria | 100 miles | April 17, 2015 | website

100 Miles of Istria – 105 km | 105 kilometers | April 18, 2015 | website

100 Miles of Istria – 65 km | 65 kilometers | April 18, 2015 | website

Denmark

Hovedstaden

Salomon Hammer Trail Bornholm -100 Miles | 100 miles | May 01, 2015 | website

Salomon Hammer Trail Bornholm – 50 miles | 50 miles | May 01, 2015 | website

Ethiopia

Ethiopian Lakes Trail | 85 kilometers | April 27, 2015 | website

France

Alpes-Maritimes

Ultra Trail des Balcons d’Azur (79+25) | 104 kilometers | April 25, 2015 | website

Ultra Trail des Balcons d’Azur (UTBA) | 79 kilometers | April 25, 2015 | website

Ardèche

Trail l’Ardéchois – 57 km | 57 kilometers | May 01, 2015 | website

Ariège

Trail des Citadelles – 70 km | 73 kilometers | April 19, 2015 | website

Aveyron

Trail du Capuchadou | 50 kilometers | April 25, 2015 | website

Trail “Le Roc de la Lune” – 60 km | 60 kilometers | April 26, 2015 | website

Trans Aubrac | 105 kilometers | April 25, 2015 | website

Bas-Rhin

Le Challenge des Seigneurs | 100 kilometers | April 18, 2015 | website

Le Défi des Seigneurs | 74 kilometers | April 18, 2015 | website

Le Grand Défi des Vosges | 58 kilometers | April 19, 2015 | website

L’Intégrale | 132 kilometers | April 18, 2015 | website

Dordogne

100 km de Belvès en Périgord Noir | 100 kilometers | April 25, 2015 | website

Morbihan

Bretagne Ultra Trail – 115 km | 115 kilometers | April 25, 2015 | website

Bretagne Ultra Trail – 63 km | 63 kilometers | April 25, 2015 | website

Seine-et-Marne

Grand Trail du Sonneur | 66 kilometers | April 25, 2015 | website

Ultra Trail de la Brie des Morin | 87 kilometers | April 25, 2015 | website

Seine-Maritime

Le RaDicAtrAil – 110 km | 110 kilometers | April 25, 2015 | website

Le RaDicAtrAil – 56 km | 56 kilometers | April 26, 2015 | website

Var

French Ultra Festival – 50 km Marche | 50 kilometers | April 25, 2015 | website

Vosges

Trail des Roches | 73 kilometers | April 26, 2015 | website

Germany

Baden-Württemberg

Lauf “Rund um Wolfach” | 50 kilometers | April 25, 2015 | website

Bavaria

Chiemsee-Ultramarathon April | 108 kilometers | April 18, 2015 | website

Lower Saxony

HeXenStieg Ultralauf | 219 kilometers | April 24, 2015 | website

Hexentanz | 104 kilometers | April 25, 2015 | website

Rhineland-Palatinate

Bärenfels 50 km Trail | 50 kilometers | May 01, 2015 | website

Saxony

Saxonian Mt. Everestmarathon | 84390 meters | April 18, 2015 | website

Saxony-Anhalt

Harzquerung – 51 km | 51 kilometers | April 25, 2015 | website

Greece

300 of Sparta | 378 kilometers | April 26, 2015 | website

Doliho Ultra-Marathon | 255 kilometers | May 01, 2015 | website

Hungary

Mátrabérc Trail | 55 kilometers | April 18, 2015 | website

India

Sandakphu 70 Mile Himalayan Race | 70 miles | April 26, 2015 | website

Israel

Mountain to Valley Relay | 215 kilometers | April 29, 2015 | website

The Sea to Jerusalem 70 km Ultra | 70 kilometers | April 17, 2015 | website

Italy

Emilia-Romagna

50 KM di Romagna | 50 kilometers | April 25, 2015 | website

Lombardy

UMS Ultramaratona Milano Sanremo | 280 kilometers | May 01, 2015 | website

Sicily

Lafuma Volcano Trail | 80 kilometers | April 26, 2015 | website

Tuscany

The Abbots Way | 125 kilometers | April 25, 2015 | website

Tuscany Crossing Val d’Orcia 100 km | 100 kilometers | April 25, 2015 | website

Tuscany Crossing Val d’Orcia 50 km | 50 kilometers | April 25, 2015 | website

Japan

Challenge Fuji 5 Lakes – 100 km | 100 kilometers | April 19, 2015 | website

Challenge Fuji 5 Lakes – 112 km | 112 kilometers | April 19, 2015 | website

Challenge Fuji 5 Lakes – 72 km | 72 kilometers | April 19, 2015 | website

Fuji Five Lakes 100 km Challenge | 100 kilometers | April 19, 2015 | website

Fuji Five Lakes 118 km Challenge | 118 kilometers | April 19, 2015 | website

Fuji Five Lakes 71 km Challenge | 71 kilometers | April 19, 2015 | website

Madagascar

Semi Trail des Ô Plateaux | 65 kilometers | May 01, 2015 | website

Ultra Trail des Ô Plateaux | 130 kilometers | May 01, 2015 | website

Nepal

Everest Ultra | 65 kilometers | April 18, 2015 | website

Mustang Trail Race | 170 kilometers | April 18, 2015 | website

Trail des Trois Vallées | 353 kilometers | April 18, 2015 | website

Netherlands

Limburg

Limburgs Zwaarste 100 km | 100 kilometers | April 18, 2015 | website

Limburgs Zwaarste 60 km | 60 kilometers | April 18, 2015 | website

Limburgs Zwaarste 80 km | 80 kilometers | April 18, 2015 | website

Poland

Beskidzka 160 Na – Long Distance | 84 kilometers | April 25, 2015 | website

Portugal

75 km | 75 kilometers | April 18, 2015 | website

Gerês Trail Aventure® | 130 kilometers | April 30, 2015 | website

Gerês Trail Aventure® Starter | 70 kilometers | April 30, 2015 | website

Peneda-Gerês Trail Aventure® | 280 kilometers | April 25, 2015 | website

Serbia

Fruska Gora Ultra Plus | 111 kilometers | April 25, 2015 | website

South Africa

Loskop Ultra Marathon | 50 kilometers | April 18, 2015 | website

Slow-Mag Ultra | 50 kilometers | April 26, 2015 | website

The Hobbit 100 | 100 kilometers | April 25, 2015 | website

Spain

Andalusia

TrailRunning BRIMZ “Guzmán el Bueno” X Sierra Morena – 60 km | 60 kilometers | April 18, 2015 | website

Balearic Islands

Trail Mallorca Serra de Tramuntana | 62 kilometers | April 18, 2015 | website

Ultra Mallorca Serra de Tramuntana | 102 kilometers | April 18, 2015 | website

Canary Islands

Anaga Ultratrail 88 km | 88 kilometers | April 19, 2015 | website

Catalonia

Long Trail Barcelona | 69 kilometers | April 25, 2015 | website

Oxfam Intermón Spain – Girona | 100 kilometers | April 18, 2015 | website

Ultra Trail Barcelona | 100 kilometers | April 25, 2015 | website

Sweden

Täby Extreme Challenge 100 miles | 100 miles | April 19, 2015 | website

Täby Extreme Challenge 50 miles | 50 miles | April 19, 2015 | website

Tunisia

100km of Sahara | 110 kilometers | April 25, 2015 | website

Turkey

Iznik 130K Ultramarathon | 130 kilometers | April 18, 2015 | website

Orhangazi Ultra Marathon 80K | 80 kilometers | April 18, 2015 | website

United Kingdom

East Dunbartonshire

Highland ‘Fling’ | 53 miles | April 25, 2015 | website

Northumberland

Kielder Ultra Trail 100 km | 100 kilometers | April 26, 2015 | website

Kielder Ultra Trail 50 km | 50 kilometers | April 26, 2015 | website

Kielder Ultra Trail 80 km | 80 kilometers | April 26, 2015 | website

North Yorkshire

The Fellsman | 60 miles | April 25, 2015 | website

Worcestershire

The Evesham Ultra | 46 miles | April 26, 2015 | website

United States Minor Outlying Islands

Brazos Bend 50 | 50 miles | April 25, 2015 | website

USA

Alabama

Grand Viduta Stage Race | 43 miles | April 24, 2015 | website

Race Across Alabama – Border to Border (7 Marathons) | 210 miles | April 18, 2015 | website

Arkansas

Ouachita Trail 50 Km | 50 kilometers | April 18, 2015 | website

Ouachita Trail 50 Mile | 50 miles | April 18, 2015 | website

California

Diablo Trails Challenge 50K | 50 kilometers | April 18, 2015 | website

Folsom Lake Trail 50K Run | 50 kilometers | April 25, 2015 | website

Leona Divide 50K | 50 kilometers | April 18, 2015 | website

Leona Divide 50 Miles | 50 miles | April 18, 2015 | website

Lost Boys 50 Mile Trail Run | 50 miles | April 25, 2015 | website

Mokelumne River 50K | 50 kilometers | April 18, 2015 | website

Mokelumne River 50M | 50 miles | April 18, 2015 | website

Rodeo Beach Rumble 50K | 50 kilometers | April 25, 2015 | website

Ruth Anderson 100k | 100 kilometers | April 19, 2015 | website

Ruth Anderson 50k | 50 kilometers | April 19, 2015 | website

Ruth Anderson 50M | 50 miles | April 19, 2015 | website

Sierra Azul Challenge 50K Run | 50 kilometers | April 25, 2015 | website

Sierra Azul Challenge 50 Miles Run | 50 miles | April 25, 2015 | website

Colorado

Cheyenne Mtn. Trail 50K Race | 50 kilometers | April 25, 2015 | website

C.U.R.E Ultra’s 100K | 100 kilometers | April 18, 2015 | website

C.U.R.E Ultra’s 50K | 50 kilometers | April 18, 2015 | website

C.U.R.E Ultra’s 50 Mile | 50 miles | April 18, 2015 | website

Desert R.A.T.S. 50K | 50 kilometers | April 18, 2015 | website

Desert R.A.T.S. Double Marathon | 52 miles | April 18, 2015 | website

Rattler Trail Races 50K | 50 kilometers | April 18, 2015 | website

Connecticut

Jack Bristol Lake Waramaug 100k | 100 kilometers | April 26, 2015 | website

Jack Bristol Lake Waramaug 50k | 50 kilometers | April 26, 2015 | website

Jack Bristol Lake Waramaug 50M | 50 miles | April 26, 2015 | website

Traprock 50 | 50 kilometers | April 18, 2015 | website

Florida

DTR Endurance Race 50k | 50 kilometers | April 18, 2015 | website

JWCorbett 50K | 50 kilometers | April 25, 2015 | website

JWCorbett 50M | 50 miles | April 25, 2015 | website

Georgia

DoubleTop 100 100k | 100 kilometers | April 18, 2015 | website

DoubleTop 100 100M | 100 miles | April 18, 2015 | website

Double Top 100 km | 100 kilometers | April 25, 2015 | website

Double Top 100 Mile | 100 miles | April 25, 2015 | website

Double Top 50 km | 50 kilometers | April 25, 2015 | website

Race Across Georgia – Border to Border (7 Marathons) | 194 miles | April 27, 2015 | website

Race Across Georgia – Silver Comet (4 Marathons) | 107 miles | April 27, 2015 | website

SweetH20 50K | 50 kilometers | April 18, 2015 | website

Idaho

Menan Butte Trail Challenge 50K | 50 kilometers | April 18, 2015 | website

Weiser 50k Ultra | 50 kilometers | April 25, 2015 | website

Weiser 50k Ultra Relay | 50 kilometers | April 25, 2015 | website

Illinois

Earth Day 50K Trail Race | 50 kilometers | April 18, 2015 | website

Indiana

Indiana Trail 100 | 100 miles | April 25, 2015 | website

Indiana Trail 50 | 50 miles | April 25, 2015 | website

Kansas

FlatRock 101K Ultra Trail Race | 101 kilometers | April 25, 2015 | website

Free State Trail Runs 100 km Trail Ultra | 100 kilometers | April 18, 2015 | website

Free State Trail Runs 40-Mile Trail Ultra | 40 miles | April 18, 2015 | website

Kentucky

Vol State 500K 2 Person Relay | 500 kilometers | April 23, 2015 | website

Vol State 500K 3 Person Relay | 500 kilometers | April 23, 2015 | website

Vol State 500K 4 Person Relay | 500 kilometers | April 23, 2015 | website

Yamacraw 50k | 50 kilometers | April 18, 2015 | website

Maryland

C&O Canal 100 | 100 miles | April 25, 2015 | website

Massachusetts

Don’t Run Boston 50K | 50 kilometers | April 19, 2015 | website

TARC 50M | 50 miles | April 19, 2015 | website

TARC Spring Classic 50K | 50 kilometers | April 25, 2015 | website

Michigan

Running Fit Trail 50K | 50 kilometers | April 26, 2015 | website

Trail 50K | 50 kilometers | April 26, 2015 | website

Traverse City Trail Running Festival 50k Run | 50 kilometers | April 18, 2015 | website

Minnesota

Trail Mix Race MN – 50K Ultra | 50 kilometers | April 18, 2015 | website

Missouri

Double Chubb 50k | 50 kilometers | April 18, 2015 | website

Frisco Railroad Run 50k Ultramarathon | 50 kilometers | April 25, 2015 | website

Frisco Railroad Run 50 Mile Ultramarathon | 50 miles | April 25, 2015 | website

Nevada

Henderson Trail Classic 55K Trail Race | 55 kilometers | April 25, 2015 | website

New York

100 Mile PEACE Ultra Marathon | 100 miles | April 17, 2015 | website

Sybil Ludington 50K Run | 50 kilometers | April 25, 2015 | website

North Carolina

Cures for Colors 100 Mile Run/Walk | 100 miles | April 25, 2015 | website

Leatherwood Ultras 50K | 50 kilometers | April 18, 2015 | website

Leatherwood Ultras 50M | 50 miles | April 18, 2015 | website

Run the Rock Ultra | 50 kilometers | April 18, 2015 | website

Pennsylvania

Hyner Ultra Challenge 50K | 50 kilometers | April 18, 2015 | website

The Ironmasters Challenge – 50K Ultra | 50 kilometers | April 26, 2015 | website

Texas

Hog’s Hunt 50K Trail Run | 50 kilometers | April 18, 2015 | website

The Aoudad 50K | 50 kilometers | April 25, 2015 | website

Utah

Salt Flats 100 | 100 miles | April 24, 2015 | website

Salt Flats 50 | 50 miles | April 24, 2015 | website

Virginia

Bel Monte 50K Endurance Run | 50 kilometers | April 18, 2015 | website

Bel Monte 50 mile Endurance Run | 50 miles | April 18, 2015 | website

Promise Land 50K | 50 kilometers | April 25, 2015 | website

The North Face Endurance Challenge Washington DC 50K | 50 kilometers | April 18, 2015 | website

The North Face Endurance Challenge Washington DC 50 Mile | 50 miles | April 18, 2015 | website

Washington

Capitol Peak Ultra Marathon – 50 mile | 50 miles | April 26, 2015 | website

Capitol Peak Ultra Marathon – 55 km | 55 kilometers | April 26, 2015 | website

Mt. Si 50K Relay & Ultra Runs | 50 kilometers | April 26, 2015 | website

Mt. Si 50 Mile Relay & Ultra Runs | 50 miles | April 26, 2015 | website

Palouse 100K Relay – 2-3 runners | 100 kilometers | April 18, 2015 | website

Palouse 100K Relay – 4-10 runners | 100 kilometers | April 18, 2015 | website

Palouse 100K Solo | 100 kilometers | April 18, 2015 | website

Snake River Island Hop 100K | 100 kilometers | April 25, 2015 | website

Snake River Island Hop 50K | 50 kilometers | April 25, 2015 | website

Spokane River Run 50K | 50 kilometers | April 19, 2015 | website

XTERRA Spring Eagle 50K | 50 kilometers | April 26, 2015 | website

Yakima Skyline Rim 50k | 50 kilometers | April 19, 2015 | website

Wisconsin

Chippewa 50K Trail Run | 50 kilometers | April 25, 2015 | website