| 06 Sep 2025 |
The Hawk Hundred (100 Miler|50 Miler|Marathon) |
Kanwaka, Kansas, United States |
| 07 Sep 2025 |
WW X Tri Prime View 2025 (Bike|Run) |
Olifantsfontein, Western Cape, South Africa |
| 12-13 Sep 2025 |
Run Rabbit Run (50 Miler|100 Mile Tortoises) |
Steamboat Springs, Colorado, United States |
| 12-14 Sep 2025 |
The Rut Mountain Runs (VK|11k|28k|50k) |
Big Sky, Montana, United States |
| 13 Sep 2025 |
Iron Horse Ultra 100 (100 Miles) |
Town Of St. Paul, Alberta, Canada |
| 13 Sep 2025 |
Pine to Palm (100 Miler) |
Williams, Oregon, United States |
| 14 Sep 2025 |
WHISTLER X TRI (Sprint Distance Bike|Championship Distance Run|Championship Distance Bike|Sprint Distance Run) |
Whistler, British Columbia, Canada |
| 14 Sep 2025 |
Ohio Pawpaw 4 Mile (4 Mile|1 Mile Fun Run) |
Albany, Ohio, United States |
| 14 Sep 2025 |
NorthCloud Whangarei Run Walk Festival (4.4km|8.9km|NorthCloud Whangarei Half Marathon) |
Whangārei, Northland, New Zealand |
| 14-16 Sep 2025 |
Tor Des Geants (130k|330k) |
Gressoney-saint-jean, Aosta Valley, Italy |
| 14 Sep 2025 |
Fyfield Footpath 5K & 10K (10K|5K) |
Fyfield, Essex, United Kingdom |
| 18-21 Sep 2025 |
Mammoth Trail Fest (Dragon's Back Ascent|50k|26k) |
Mammoth Lakes, California, United States |
| 19 Sep 2025 |
The Georgia Jewel (100 Miler) |
Dalton, Georgia, United States |
| 20 Sep 2025 |
Whangamatā Half Marathon (5km|10km|Half Marathon) |
Whangamatā, Waikato, New Zealand |
| 20 Sep 2025 |
Chiltern Wonderland 50 (50 Miles) |
South Oxfordshire, England, United Kingdom |
| 20 Sep 2025 |
Mountain Lakes 100 (100 Miler) |
Olallie Lake, Oregon, United States |
| 20 Sep 2025 |
Skyline Scotland (Ring of Steall|Ben Nevis Ultra|Glen Coe Skyline) |
Kinlochleven, Scotland, United Kingdom |
| 20 Sep 2025 |
Stagecoach (100M MTB|100M MTB) |
Coconino County, Arizona, United States |
| 20 Sep 2025 |
Three Sisters Skyline (50K|1/2 Marathon) |
Deschutes County, Oregon, United States |
| 20 Sep 2025 |
Be The Light 5K (10K|5K) |
Valencia, California, United States |