| 05 Sep 2025 |
Woodstock Festival (Hallucination 100 Mile) |
Livingston County, Michigan, United States |
| 5-6 Sep 2025 |
Run Woodstock (5M|50K|13.1M|26.2M|100M|100K|50M) |
Gregory, Michigan, United States |
| 5-7 Sep 2025 |
Ultra-Trail Harricana du Canada (125 km|80 km|65 km|42 km|28 km|20 km|10 km|5 km) |
La Malbaie, Quebec, Canada |
| 06 Sep 2025 |
The Hawk Hundred (100 Miler|50 Miler|Marathon) |
Kanwaka, Kansas, United States |
| 06 Sep 2025 |
Mogollon Monster (100 Miler|42K) |
Pine, Arizona, United States |
| 06 Sep 2025 |
Pine Creek Challenge (100K|100 Miler) |
Marsh Creek, Pennsylvania, United States |
| 06 Sep 2025 |
Haliburton Forest 100 (100 Miles) |
Dysart Et Al, Ontario, Canada |
| 06 Sep 2025 |
Legacy of Patriots 3rd Annual Miles of Memories 5k (5k) |
Fenton, Missouri, United States |
| 6-7 Sep 2025 |
Finlayson Arm (28K|50K) |
Victoria, British Columbia, Canada |
| 6-7 Sep 2025 |
Backcountry Rise (50K|20 Miler|Half Marathon) |
Toutle, Washington, United States |
| 06 Sep 2025 |
Steven Creek Striders Resevoir Run (1/2 Marathon|10K) |
Cupertino, California, United States |
| 06 Sep 2025 |
Noble Canyon (50K) |
Pine Valley, California, United States |
| 07 Sep 2025 |
WW X Tri Prime View 2025 (Bike|Run) |
Olifantsfontein, Western Cape, South Africa |
| 12-14 Sep 2025 |
The Rut Mountain Runs (VK|11k|28k|50k) |
Big Sky, Montana, United States |
| 12 Sep 2025 |
Run Rabbit Run (100 Mile Tortoises|50 Miler) |
Steamboat Springs, Colorado, United States |
| 13 Sep 2025 |
Pine to Palm (100 Miler) |
Williams, Oregon, United States |
| 13 Sep 2025 |
Iron Horse Ultra 100 (100 Miles) |
Town Of St. Paul, Alberta, Canada |
| 14 Sep 2025 |
Ohio Pawpaw 4 Mile (4 Mile|1 Mile Fun Run) |
Albany, Ohio, United States |
| 14-16 Sep 2025 |
Tor Des Geants (130k|330k) |
Gressoney-saint-jean, Aosta Valley, Italy |
| 14 Sep 2025 |
WHISTLER X TRI (Sprint Distance Bike|Championship Distance Run|Championship Distance Bike|Sprint Distance Run) |
Whistler, British Columbia, Canada |