| 24 Jul 2021 |
Elk Valley Ultra (50K) |
Fernie, British Columbia, Canada |
| 24 Jul 2021 |
Buckin' Hell 30k (30k) |
North Vancouver, British Columbia, Canada |
| 25 Jul 2021 |
Burning River (100 Miler) |
Cuyahoga Falls, Ohio, United States |
| 30-31 Jul 2021 |
Ressurection Pass Ultra Races (50 Miler|100 Miler) |
Kenai Peninsula, Alaska, United States |
| 30-31 Jul 2021 |
Ouray 100 & 50 Mile Endurance Run (100 Miler|50 Miler) |
Ouray, Colorado, United States |
| 30-31 Jul 2021 |
Ressurection Pass Ultra Races (100 Miler|50 Miler) |
Kenai Peninsula, Alaska, United States |
| 30 Jul 2021 |
Never Summer (100K) |
Gould, Colorado, United States |
| 31 Jul 2021 |
HURL Elkhorn (50K|50 Mile) |
Helena, Montana, United States |
| 31 Jul 2021 |
Beast of Burden (Summer) (100 Miler) |
Lockport, New York, United States |
| 31 Jul 2021 |
Grand Mesa Ultras (50 Miler|55K) |
Grand Mesa, Colorado, United States |
| 31 Jul 2021 |
Elkhorn Crest 50 (50K|50 Miler) |
Sumpter, Oregon, United States |
| 31 Jul 2021 |
Badger 100 (100 Miler) |
Belleville, Wisconsin, United States |
| 31 Jul 2021 |
Canadian Death Race (125 km) |
Grande Cache, Alberta, Canada |
| 31 Jul 2021 |
Pikes Peak Ultra (30k|50 Miler|50k) |
Colorado Springs, Colorado, United States |
| 31 Jul 2021 |
Lost and Found (30K|55K) |
Soda Springs, California, United States |
| 01 Aug 2021 |
Skyline 50k Endurance Run (50K) |
Castro Valley, California, United States |
| 06 Aug 2021 |
Fat Dog 120 (40 Miler|120 Miler|70 Miler|50 Miler) |
Manning Park, British Columbia, Canada |
| 6-7 Aug 2021 |
Silverton Ultra Dirty - 100M, 100K, and 60K (60K|100 Mile|100K - 2021) |
Silverton, Colorado, United States |
| 06 Aug 2021 |
Beacons 100 (100 Miles) |
Brecon, Wales, United Kingdom |
| 07 Aug 2021 |
Angeles Crest (100 Mile Endurance Run) |
Wrightwood, California, United States |