| 24 Sep 2021 |
Whistler Alpine Meadows 110k (110km) |
Whistler, British Columbia, Canada |
| 24 Sep 2021 |
Yeti 100 Mile Endurance Run (100 Miler) |
Whitetop, Virginia, United States |
| 24-25 Sep 2021 |
Ultra Trails Lake Tahoe (50 Miler|50K|100 Miler|25K) |
Placer County, California, United States |
| 25 Sep 2021 |
Headwaters Trail Runs (30K|50K|10K) |
Mount Shasta, California, United States |
| 25 Sep 2021 |
Whistler Alpine Meadows 25km (25km) |
Whistler, British Columbia, Canada |
| 25 Sep 2021 |
Tulsa Urban Adventure (100 Miles) |
Tulsa, Oklahoma, United States |
| 25 Sep 2021 |
Worlds End Fall Classic (13.2 miles) |
Forksville, Pennsylvania, United States |
| 25 Sep 2021 |
Mt. Taylor 50K (50K) |
Grants, New Mexico, United States |
| 26 Sep 2021 |
Whistler Alpine Meadows 55km (55km) |
Whistler, British Columbia, Canada |
| 1-2 Oct 2021 |
Bulldog 50k & 25k Trail Runs (50k - Saturday|25k - Friday) |
Calabasas, California, United States |
| 1-3 Oct 2021 |
Broken Arrow SkyRace (52 km|26 km|11K|Vertical K|Kids Run) |
Olympic Valley, California, United States |
| 01 Oct 2021 |
Essex 100 (100 Miles) |
Uttlesford, England, United Kingdom |
| 02 Oct 2021 |
Flagstaff Sky Peaks Mountain Runs (27 K|5K|10 K|50 Miler|50K Sat.) |
Coconino County, Arizona, United States |
| 02 Oct 2021 |
Cuyamaca 100K (100K) |
Julian, California, United States |
| 02 Oct 2021 |
Crested Butte Ultra (55K|105K) |
Crested Butte, Colorado, United States |
| 02 Oct 2021 |
Elk-Kings 25k/50k (25K|50K) |
Tillamook, Oregon, United States |
| 02 Oct 2021 |
Iron Horse Ultra 100 (100 Miles) |
Town Of St. Paul, Alberta, Canada |
| 02 Oct 2021 |
Hennepin Hundred (100 Miler) |
Whiteside County, Illinois, United States |
| 02 Oct 2021 |
Big Sur Trail Marathon & Half (Half Marathon) |
Big Sur, California, United States |
| 02 Oct 2021 |
Baker Lake 50K (50K) |
Baker Lake, Washington, United States |