| 05 Apr 2025 |
Lake Martin 100 (100 Miler|50 Miler) |
Tallapoosa County, Alabama, United States |
| 10 Apr 2025 |
Potowatomi (50 Miler) |
Pekin, Illinois, United States |
| 11 Apr 2025 |
Zumbro Endurance Run (100 Miler) |
Theilman, Minnesota, United States |
| 11 Apr 2025 |
Gorge Waterfalls (50K|100K) |
Cascade Locks, Oregon, United States |
| 12 Apr 2025 |
Oriflamme 50k (50km) |
Julian, California, United States |
| 12 Apr 2025 |
Walk with a Friend (1 Mile|10k|5k) |
Maryland Heights, Missouri, United States |
| 12 Apr 2025 |
Silver Moon Race (6-Hours|100-Miles|24-Hours|12-Hours) |
Reedley, California, United States |
| 12 Apr 2025 |
Zion Ultras (50 K|Half Marathon|100 Mile|100 K) |
Virgin, Utah, United States |
| 12 Apr 2025 |
Silver Moon Race (100 Miles) |
Fresno County, California, United States |
| 12 Apr 2025 |
Leona Divide (50 Miler|100 Miler|100K|50K|30k) |
Lake Hughes, California, United States |
| 12 Apr 2025 |
Dirty Kiln Trail Races - REVERSE (Short Course - 10K|Long Course - (Second Loop aka The Back Half)) |
Hollidaysburg, Pennsylvania, United States |
| 12 Apr 2025 |
Martian Invasion of Races (5K|26.2M|10K|13.1M) |
Dearborn, Michigan, United States |
| 12 Apr 2025 |
Woodside/Purisima Creek Crossover (35K|50K) |
Redwood City, California, United States |
| 12 Apr 2025 |
Run Sunset Beach (5K|Half Marathon) |
Sunset Beach, North Carolina, United States |
| 12-13 Apr 2025 |
Hogeye Marathon (5K|Marathon|Half Marathon|10K) |
Springdale, Arkansas, United States |
| 12 Apr 2025 |
South Downs Way 50 (50 Miles) |
Worthing, England, United Kingdom |
| 12 Apr 2025 |
Yakima Skyline Rim 50k (50K) |
Ellensburg, Washington, United States |
| 12 Apr 2025 |
Mad City Ultras (50k|100k) |
Madison, Wisconsin, United States |
| 13 Apr 2025 |
Mountains 2 Beach (Marathon|Half-Marathon) |
Ojai, California, United States |
| 13 Apr 2025 |
Bend Marathon (Marathon) |
Bend, Oregon, United States |
| 13 Apr 2025 |
Peterson Ridge Rumble (40 Miler|20 Miler) |
Sisters, Oregon, United States |
| 16 Apr 2025 |
Double Top 100 Stone Anvil (100 Miler) |
Hasslers Mill, Georgia, United States |
| 19 Apr 2025 |
Rattler Trail Races (25K|10K) |
Colorado Springs, Colorado, United States |
| 19 Apr 2025 |
Hyner Trail Challenge (25K|50K) |
Hyner, Pennsylvania, United States |
| 19 Apr 2025 |
Zane Grey (100K) |
Pine, Arizona, United States |
| 19 Apr 2025 |
Dunes 100 (100 Miler) |
Hell Gate, Florida, United States |
| 21 Apr 2025 |
Boston Marathon (Marathon) |
Boston, Massachusetts, United States |
| 25-26 Apr 2025 |
The Canyons Endurance Runs (25K|50K|100K|100 Miles) |
Foresthill, California, United States |
| 26 Apr 2025 |
Trail Weekend (50K|13.1M|5M|26.2M) |
Gregory, Michigan, United States |
| 26 Apr 2025 |
Kiwi Walk and Run Tauranga (Long|Short|Mid) |
Tauranga, Bay of Plenty, New Zealand |
| 26 Apr 2025 |
Sinister Night Runs (27K|6K|18K|9K|54K) |
Pinal County, Arizona, United States |
| 26 Apr 2025 |
Ultra-Trail Austrailia (50k|100k) |
Katoomba, New South Wales, Australia |
| 26 Apr 2025 |
Redwood Ultra 12/6/3 Hours (Redwood Ultra Course) |
Yorba Linda, California, United States |
| 26 Apr 2025 |
Royal Gorge Groove (20K|50K|5K|12.5K|30K) |
Buckskin Joe, Colorado, United States |
| 26 Apr 2025 |
END-SURE (100 Miler) |
Power, North Dakota, United States |
| 26 Apr 2025 |
C&O Canal 100 (100 Miles) |
Water Acres, Maryland, United States |
| 27 Apr 2025 |
Eugene Marathon (Marathon|Half) |
Eugene, Oregon, United States |
| 27 Apr 2025 |
Vancouver Sun Run (10 K) |
Vancouver, British Columbia, Canada |
| 27 Apr 2025 |
Big Sur International Marathon (Marathon) |
Big Sur, California, United States |
| 01 May 2025 |
Mohican 100 (100M) |
Loudonville, Ohio, United States |
| 02 May 2025 |
Coyote Two Moon (100 Miler|100K|30K|55K) |
Ojai, California, United States |
| 02 May 2025 |
Salt Flats Endurance Runs (100 Miler|50 Miler) |
Wendover, Utah, United States |
| 02 May 2025 |
Kennet & Avon Canal (145 Miles) |
Bristol, England, United Kingdom |
| 03 May 2025 |
Hollywood to the Sea Road & Trail Relay (75 Miles) |
Los Angeles, California, United States |
| 03 May 2025 |
Collegiate Peaks Trail Run (25 Miler|50 Miler) |
Buena Vista, Colorado, United States |
| 3-4 May 2025 |
Klipspringer Challenge (Lite Day 1|Lite Day 2|Challenge Day 1|Challenge Day 2) |
Augrabies, Northern Cape, South Africa |
| 03 May 2025 |
Miwok 100k (100k) |
Stinson Beach, California, United States |
| 03 May 2025 |
McDonald Forest 50k (50K) |
Benton County, Oregon, United States |
| 03 May 2025 |
Thames Path 100 (100 Miles) |
London, England, United Kingdom |
| 04 May 2025 |
Verdugo Mountains 10k (10k) |
Glendale, California, United States |
| 04 May 2025 |
Flying Pig Marathon (Marathon|Half|10K) |
Cincinnati, Ohio, United States |
| 04 May 2025 |
BMO Vancouver Marathon (Half Marathon|Marathon) |
Vancouver, British Columbia, Canada |
| 04 May 2025 |
Breakneck Point Trail Runs (21K|42K) |
Beacon, New York, United States |
| 04 May 2025 |
Sisters Country (Half Marathon|50K) |
Sisters, Oregon, United States |
| 5-9 May 2025 |
Cocodona (Sedona Canyons 125|Elden Crest 36|Cocodona 250) |
Rock Springs, Arizona, United States |
| 09 May 2025 |
LGV Marathon - Frauenlauf (Kurzstrecke (5,6km)|Langstrecke (9,2km)) |
Gießen, Hesse, Germany |
| 09 May 2025 |
Hightail to Ale (5K) |
Detroit, Michigan, United States |
| 09 May 2025 |
Hellbender 100 (100-Miler) |
Old Fort, North Carolina, United States |
| 09 May 2025 |
Tillamook Burn Trail Run (50K) |
Tillamook State Forest, Oregon, United States |
| 10 May 2025 |
Xterra Boney Mountain (Trail Half Marathon|7k Trail) |
Newbury Park, California, United States |
| 10 May 2025 |
Proposed GOTR Spring 2025 5k Route (5K) |
St. Louis, Missouri, United States |
| 10 May 2025 |
Xterra Crystal Cove Trail Run (15k|6k) |
Newport Beach, California, United States |
| 10 May 2025 |
Quicksilver (100K|50K) |
San Jose, California, United States |
| 10 May 2025 |
Riverlands 100 (100 Miler) |
Auburn Plains, Maine, United States |
| 10 May 2025 |
Yosemite Half Marathon (Half Marathon) |
Yosemite National Park, California, United States |
| 10 May 2025 |
Survival of the Fittest 35k (35k) |
Squamish, British Columbia, Canada |
| 10 May 2025 |
PCT 50 (Training Run #1|Training Run #2|50 Miler) |
Cleveland National Forest, California, United States |
| 10 May 2025 |
Jemez Mountain (50K|15 Miler|50 Miler) |
Los Alamos, New Mexico, United States |
| 10 May 2025 |
Quad Rock 50 (50 Miler|25 Miler) |
Fort Collins, Colorado, United States |
| 10 May 2025 |
Survival of the Fittest 18k (18k) |
Squamish, British Columbia, Canada |
| 10 May 2025 |
Thunderbunny Trail Races (25K|11K|50K) |
Athens, Ohio, United States |
| 10 May 2025 |
Xterra Topanga Turkey Trot (10k|5k|15k) |
Topanga, California, United States |
| 10 May 2025 |
Ice Age Trail Endurance Runs (50k|Half Marathon|50 Miler) |
La Grange, Wisconsin, United States |
| 12 May 2025 |
Bryce Canyon Ultras (100 Miler|50k|50 Miler) |
Bryce Canyon, Utah, United States |
| 14 May 2025 |
Born to Run (100M) |
Santa Ynez, California, United States |
| 16 May 2025 |
Rocky Roccoon (100 Miles) |
Moore Grove, Texas, United States |
| 16 May 2025 |
UTAH 50 (UTAH 50) |
Kanab, Utah, United States |
| 16 May 2025 |
Infinitus (100 Miler) |
Goshen, Vermont, United States |
| 16 May 2025 |
Cruel Jewel 100 (100 Miler) |
Blairesville, Georgia, United States |
| 16 May 2025 |
UTAH 115 (UTAH 115) |
Kanab, Utah, United States |
| 17 May 2025 |
Massanutten Mountain Trails 100 (100 Miler) |
Kings Crossing, Virginia, United States |
| 17 May 2025 |
Yamacraw (20K|50K) |
Stearns, Kentucky, United States |
| 17 May 2025 |
Quest for the Crest Trail Races (50K) |
Burnsville, North Carolina, United States |
| 17 May 2025 |
North Downs Way 50 (50 Miles) |
Waverley, England, United Kingdom |
| 17 May 2025 |
Ram Party (24K |50 Mile|50K|16K|33K|5K) |
Colorado Springs, Colorado, United States |
| 17 May 2025 |
Bishop High Sierra Ultras (50 Miler|55K|100K) |
Bishop, California, United States |
| 17 May 2025 |
O'Neill Park Trail Races (30k|Half Marathon|10k|50k|Marathon) |
Trabuco Canyon, California, United States |
| 17 May 2025 |
Sun Mountain (50K) |
Winthrop, Washington, United States |
| 17 May 2025 |
Dances with Dirt Gnaw Bone (13.1M|10K|50K|26.2M|50M) |
Nashville, Indiana, United States |
| 18 May 2025 |
Cruel Jewel 100 (100 Miler) |
Blairesville, Georgia, United States |
| 18 May 2025 |
NJ Ultra Festival (100 Miles) |
Hardwick Center, New Jersey, United States |
| 18 May 2025 |
Bay of Islands Run Walk Festival (Half Marathon|Trek Trail & Fish 50km Ultra Marathon|8.7km|Hotprintz 6km Walk) |
Paihia, Northland, New Zealand |
| 18 May 2025 |
Seaside Marathon (Marathon|5K|Half|10K) |
Sea Cliff, California, United States |
| 23 May 2025 |
Nanny Goat 100 (100 Miler) |
Riverside, California, United States |
| 23 May 2025 |
Grand Union Canal (145 Miles) |
Birmingham, England, United Kingdom |
| 24 May 2025 |
Pigtails Challenge (100 Miler) |
King County, Washington, United States |
| 24 May 2025 |
Stumptown Trail Runs (1/2 Marathon|50K) |
Portland, Oregon, United States |
| 24 May 2025 |
Zegama-Aizkorri (Marathon) |
Zegama, Basque Country, Spain |
| 25 May 2025 |
Calgary Marathon (5K|10K|50K|Half Marathon|Kid's Run|Marathon) |
Calgary, Alberta, Canada |
| 25 May 2025 |
Sunshine City Festival Half Marathon (21.1km|10km|5km) |
Harare, Harare, Zimbabwe |