| 5-9 May 2025 |
Cocodona (Sedona Canyons 125|Elden Crest 36|Cocodona 250) |
Rock Springs, Arizona, United States |
| 09 May 2025 |
Hellbender 100 (100-Miler) |
Old Fort, North Carolina, United States |
| 10 May 2025 |
Riverlands 100 (100 Miler) |
Auburn Plains, Maine, United States |
| 10 May 2025 |
Ice Age Trail Endurance Runs (50k|Half Marathon|50 Miler) |
La Grange, Wisconsin, United States |
| 10 May 2025 |
Survival of the Fittest 35k (35k) |
Squamish, British Columbia, Canada |
| 10 May 2025 |
Jemez Mountain (50K|15 Miler|50 Miler) |
Los Alamos, New Mexico, United States |
| 10 May 2025 |
Proposed GOTR Spring 2025 5k Route (5K) |
St. Louis, Missouri, United States |
| 10 May 2025 |
Yosemite Half Marathon (Half Marathon) |
Yosemite National Park, California, United States |
| 10 May 2025 |
Survival of the Fittest 18k (18k) |
Squamish, British Columbia, Canada |
| 10 May 2025 |
PCT 50 (50 Miler) |
Cleveland National Forest, California, United States |
| 10 May 2025 |
Quicksilver (100K|50K) |
San Jose, California, United States |
| 11 May 2025 |
Tillamook Burn Trail Run (50K) |
Tillamook State Forest, Oregon, United States |
| 12 May 2025 |
Bryce Canyon Ultras (100 Miler|50k|50 Miler) |
Bryce Canyon, Utah, United States |
| 16 May 2025 |
Born to Run (100M) |
Santa Ynez, California, United States |
| 16 May 2025 |
Infinitus (100 Miler) |
Goshen, Vermont, United States |
| 16 May 2025 |
Cruel Jewel 100 (100 Miler) |
Blairesville, Georgia, United States |
| 17 May 2025 |
Yamacraw (20K|50K) |
Stearns, Kentucky, United States |
| 17 May 2025 |
O'Neill Park Trail Races (30k|Half Marathon|10k|50k|Marathon) |
Trabuco Canyon, California, United States |
| 17 May 2025 |
Ram Party (24K |50 Mile|50K|16K|33K|5K) |
Colorado Springs, Colorado, United States |
| 17 May 2025 |
Quest for the Crest Trail Races (50K) |
Burnsville, North Carolina, United States |