| 13 Apr 2024 |
Lake Sonoma 50 (50 Miler) |
Healdsburg, California, United States |
| 13 Apr 2024 |
South Downs Way 50 (50 Miles) |
Worthing, England, United Kingdom |
| 13 Apr 2024 |
Woodside/Purisima Creek Crossover (35K|50K) |
Redwood City, California, United States |
| 13 Apr 2024 |
Oriflamme 50k (50km) |
Julian, California, United States |
| 13 Apr 2024 |
Two Oceans Marathon (56K|Half Marathon) |
Cape Town, Western Cape, South Africa |
| 13 Apr 2024 |
Zion Ultras (50 K|Half Marathon|100 Mile|100 K) |
Virgin, Utah, United States |
| 13 Apr 2024 |
Chester Ultra 100 (100 Miles) |
Waverton, England, United Kingdom |
| 13 Apr 2024 |
Dirty Kiln Trail Races - REVERSE (Short Course - 10K|Long Course - (Second Loop aka The Back Half)) |
Hollidaysburg, Pennsylvania, United States |
| 13 Apr 2024 |
Rattler Trail Races (25K|10K) |
Colorado Springs, Colorado, United States |
| 14 Apr 2024 |
Bend Marathon (Marathon) |
Bend, Oregon, United States |
| 14 Apr 2024 |
Peterson Ridge Rumble (40 Miler|20 Miler) |
Sisters, Oregon, United States |
| 15 Apr 2024 |
Boston Marathon (Marathon) |
Boston, Massachusetts, United States |
| 19 Apr 2024 |
Double Top 100 Stone Anvil (100 Miler) |
Hasslers Mill, Georgia, United States |
| 20 Apr 2024 |
Hyner Trail Challenge (25K|50K) |
Hyner, Pennsylvania, United States |
| 20 Apr 2024 |
Leona Divide (50 Miler|30k|100 mile |50k|100K) |
Lake Hughes, California, United States |
| 20 Apr 2024 |
Zane Grey (100K) |
Pine, Arizona, United States |
| 20 Apr 2024 |
Dunes 100 (100 Miler) |
Hell Gate, Florida, United States |
| 20 Apr 2024 |
Royal Gorge Groove (20K|50K|5K|12.5K|30K) |
Buckskin Joe, Colorado, United States |
| 20 Apr 2024 |
Yakima Skyline Rim 50k (50K) |
Ellensburg, Washington, United States |
| 20 Apr 2024 |
Sinister Night Runs (6K|27K|18K|9K|54K) |
Pinal County, Arizona, United States |
| 20 Apr 2024 |
Mad City Ultras (50k|100k) |
Madison, Wisconsin, United States |
| 20-21 Apr 2024 |
Hogeye Marathon (5K|Marathon|Half Marathon|10K) |
Springdale, Arkansas, United States |
| 20 Apr 2024 |
Silver Moon Race (6-Hours|100-Miles|24-Hours|12-Hours) |
Reedley, California, United States |
| 20 Apr 2024 |
Silver Moon Race (100 Miles) |
Fresno County, California, United States |
| 21 Apr 2024 |
Zürich Marathon (Marathon) |
Zurich, Zürich, Switzerland |
| 21 Apr 2024 |
Bitterroot Runoff Trail Runs (10 Mile|5 Mile|5k) |
Lolo, Montana, United States |
| 21 Apr 2024 |
Vancouver Sun Run (10 K) |
Vancouver, British Columbia, Canada |
| 26-27 Apr 2024 |
The Canyons Endurance Runs (25K|50K|100K|100 Miles) |
Foresthill, California, United States |
| 27 Apr 2024 |
Reno Connector Run (10K) |
Reno, Nevada, United States |
| 27 Apr 2024 |
Run Sunset Beach (5K|Half Marathon) |
Sunset Beach, North Carolina, United States |
| 27 Apr 2024 |
UROC 50 Miler, 50K, Half Marathon (Half Marathon|50 Miles|50K) |
Vesuvius, Virginia, United States |
| 27 Apr 2024 |
GO! St. Louis Marathon Weekend (Marathon|Half Marathon|10K ) |
Saint Louis, Missouri, United States |
| 27 Apr 2024 |
Brown's Creek TT (Full E Lap|Full Lap ) |
Elizabethtown, North Carolina, United States |
| 27 Apr 2024 |
C&O Canal 100 (100 Miles) |
Water Acres, Maryland, United States |
| 28 Apr 2024 |
Eugene Marathon (Marathon) |
Eugene, Oregon, United States |
| 28 Apr 2024 |
Mountains 2 Beach (Marathon|Half-Marathon) |
Ojai, California, United States |
| 28 Apr 2024 |
Big Sur International Marathon (Marathon) |
Big Sur, California, United States |
| 28 Apr 2024 |
Lago Maggiore International Marathon (K43) |
Maccagno Con Pino E Veddasca, Lombardy, Italy |
| 01 May 2024 |
Sentinel Hill Climb (1.6 Miles, 1,900 feet of climbing) |
Missoula, Montana, United States |
| 03 May 2024 |
Salt Flats Endurance Runs (100 Miler|50 Miler) |
Wendover, Utah, United States |
| 03 May 2024 |
Coyote Two Moon (100 miles |100k |30k ) |
Ojai, California, United States |
| 04 May 2024 |
Miwok 100k (100k) |
Stinson Beach, California, United States |
| 04 May 2024 |
Thames Path 100 (100 Miles) |
London, England, United Kingdom |
| 04 May 2024 |
O'Neill Park Trail Races (30k|Half Marathon|10k|50k|Marathon ) |
Trabuco Canyon, California, United States |
| 4-5 May 2024 |
Klipspringer Challenge (Lite Day 1|Lite Day 2|Challenge Day 1|Challenge Day 2) |
Augrabies, Northern Cape, South Africa |
| 04 May 2024 |
Grit OCR (Claw - 8-Miles|Fang - 5-Miles) |
Santa Clarita, California, United States |
| 04 May 2024 |
McDonald Forest 50k (50K) |
Benton County, Oregon, United States |
| 04 May 2024 |
Collegiate Peaks Trail Run (25 Miler|50 Miler) |
Buena Vista, Colorado, United States |
| 05 May 2024 |
BMO Vancouver Marathon (Half Marathon|Marathon) |
Vancouver, British Columbia, Canada |
| 05 May 2024 |
Breakneck Point Trail Runs (21K|42K) |
Beacon, New York, United States |
| 05 May 2024 |
Flying Pig Marathon (Marathon|Half|10K) |
Cincinnati, Ohio, United States |
| 05 May 2024 |
Verdugo Mountains 10k (10k) |
Glendale, California, United States |
| 6-10 May 2024 |
Cocodona (Sedona Canyons 125|Elden Crest 36|Cocodona 250) |
Rock Springs, Arizona, United States |
| 10 May 2024 |
Hellbender 100 (100-Miler) |
Old Fort, North Carolina, United States |
| 10 May 2024 |
Tillamook Burn Trail Run (50K) |
Tillamook State Forest, Oregon, United States |
| 11 May 2024 |
Quicksilver (100K|50K) |
San Jose, California, United States |
| 11 May 2024 |
Survival of the Fittest 35k (35k) |
Squamish, British Columbia, Canada |
| 11 May 2024 |
Jemez Mountain (50K|15 Miler|50 Miler) |
Los Alamos, New Mexico, United States |
| 11 May 2024 |
PCT 50 (50 Miler) |
Cleveland National Forest, California, United States |
| 11 May 2024 |
Survival of the Fittest 18k (18k) |
Squamish, British Columbia, Canada |
| 11 May 2024 |
Ice Age Trail Endurance Runs (50k|Half Marathon|50 Miler) |
La Grange, Wisconsin, United States |
| 11 May 2024 |
Riverlands 100 (100 Miler) |
Auburn Plains, Maine, United States |
| 11 May 2024 |
Quad Rock 50 (50 Miler|25 Miler) |
Fort Collins, Colorado, United States |
| 11 May 2024 |
Thunderbunny Trail Races (25K|11K|50K) |
Athens, Ohio, United States |
| 11 May 2024 |
Yosemite Half Marathon (Half Marathon) |
Yosemite National Park, California, United States |
| 17 May 2024 |
Cruel Jewel 100 (100 Miler) |
Blairesville, Georgia, United States |
| 17 May 2024 |
Born to Run (100M) |
Santa Ynez, California, United States |
| 17 May 2024 |
Infinitus (100 Miler) |
Goshen, Vermont, United States |
| 18 May 2024 |
Bishop High Sierra Ultras (50 Miler|55K|100K) |
Bishop, California, United States |
| 18 May 2024 |
Massanutten Mountain Trails 100 (100 Miler) |
Kings Crossing, Virginia, United States |
| 18 May 2024 |
Cape Cod's Run Against the Tides 50 Miler - Unsanctioned Ultra - May 2024 Event (50 miler) |
Provincetown, Massachusetts, United States |
| 18 May 2024 |
Ram Party (24K|50 Mile|50K|16K|33K|5K) |
Colorado Springs, Colorado, United States |
| 18 May 2024 |
Quest for the Crest Trail Races (50K) |
Burnsville, North Carolina, United States |
| 18 May 2024 |
Lázeňský běh - 10 km (Rychlých 10 km) |
Teplice Nad Bečvou, Olomoucký, Czechia |
| 18 May 2024 |
Yamacraw (20K|50K) |
Stearns, Kentucky, United States |
| 18 May 2024 |
Sun Mountain (50K) |
Winthrop, Washington, United States |
| 18 May 2024 |
North Downs Way 50 (50 Miles) |
Waverley, England, United Kingdom |
| 18 May 2024 |
Bryce Canyon Ultras (100 Miler|50k|50 Miler) |
Bryce Canyon, Utah, United States |
| 18 May 2024 |
Ultra-Trail Austrailia (50k|100k) |
Katoomba, New South Wales, Australia |
| 18 May 2024 |
Lázeňský běh - TRAIL 20 km (trailRUN 25km) |
Teplice Nad Bečvou, Olomoucký, Czechia |
| 19 May 2024 |
Seaside Marathon (Marathon|5K|Half|10K) |
Sea Cliff, California, United States |
| 19 May 2024 |
NJ Ultra Festival (100 Miles) |
Hardwick Center, New Jersey, United States |
| 19 May 2024 |
Rocky Roccoon (100 Miles) |
Moore Grove, Texas, United States |
| 23 May 2024 |
Pigtails Challenge (100 Miler) |
King County, Washington, United States |
| 24 May 2024 |
Grand Union Canal (145 Miles) |
Birmingham, England, United Kingdom |
| 25 May 2024 |
Nanny Goat 100 (100 Miler) |
Riverside, California, United States |
| 25 May 2024 |
Armed Forces Half Marathon at Briones Regional Park (Armed Forces Half Marathon) |
Contra Costa County, California, United States |
| 25 May 2024 |
Zegama-Aizkorri (Marathon) |
Zegama, Basque Country, Spain |
| 25 May 2024 |
Stumptown Trail Runs (1/2 Marathon|50K) |
Portland, Oregon, United States |
| 25 May 2024 |
Bear Mountain (12 km|8 km|21 km) |
Mission, British Columbia, Canada |
| 26 May 2024 |
Bear Mountain Bike Race (11 KM Short Course|25 KM Long Course) |
Mission, British Columbia, Canada |
| 26 May 2024 |
Saskatchewan Marathon (42.2k|5k|21.1.k|10k) |
Saskatoon, Saskatchewan, Canada |
| 26 May 2024 |
Calgary Marathon (5K|10K|50K|Half Marathon|Kid's Run|Marathon) |
Calgary, Alberta, Canada |
| 26 May 2024 |
Hotprintz Bay of Islands Run Walk Festival (Trek Trail & Fish 50km Ultra Marathon|Half Marathon|6km Walk|8.7km) |
Paihia, Northland, New Zealand |
| 01 Jun 2024 |
Worlds End Ultramarathon (50k|100k) |
Forksville, Pennsylvania, United States |
| 1-9 Jun 2024 |
Cool Moon 100 (Cool Moon 11.5 miler (South Loop)|Cool Moon 100K|100 Miler|Cool Moon 25 miler|Cool Moon 5K|Cool Moon 13.5 mile (North Loop)|Cool Moon 50 miler) |
Cool, California, United States |
| 01 Jun 2024 |
REVEL Mt. Hood (Half Marathon|Marathon) |
Portland, Oregon, United States |
| 01 Jun 2024 |
Hell Hole Hundred (100M) |
Charleston, South Carolina, United States |
| 01 Jun 2024 |
Mohican 100 (100M) |
Loudonville, Ohio, United States |
| 01 Jun 2024 |
Loco Race Series (100 Miler) |
Butte Meadows, California, United States |