| 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 |
Miwok 100k (100k) |
Stinson Beach, California, 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 |
McDonald Forest 50k (50K) |
Benton County, Oregon, United States |
| 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 |
| 03 May 2025 |
Thames Path 100 (100 Miles) |
London, England, United Kingdom |
| 04 May 2025 |
Flying Pig Marathon (Marathon|Half|10K) |
Cincinnati, Ohio, United States |
| 04 May 2025 |
Breakneck Point Trail Runs (21K|42K) |
Beacon, New York, United States |
| 04 May 2025 |
BMO Vancouver Marathon (Half Marathon|Marathon) |
Vancouver, British Columbia, Canada |
| 04 May 2025 |
Verdugo Mountains 10k (10k) |
Glendale, California, 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 |
| 10 May 2025 |
Thunderbunny Trail Races (25K|11K|50K) |
Athens, Ohio, United States |
| 10 May 2025 |
Survival of the Fittest 18k (18k) |
Squamish, British Columbia, Canada |