| 05 Jun 2021 |
Old Dominion 100 Mile (100 Miler) |
Fort Valley, Virginia, United States |
| 05 Jun 2021 |
Ridge Route Ultra (50k) |
Los Angeles County, California, United States |
| 05 Jun - 02 Oct 2021 |
Bear Mountain (12 km|8 km) |
Mission, British Columbia, Canada |
| 05 Jun 2021 |
Loco Race Series (100 Miler) |
Butte Meadows, California, United States |
| 05 Jun 2021 |
Worlds End Ultramarathon (50k|100k) |
Forksville, Pennsylvania, United States |
| 05 Jun 2021 |
Ruck a Chuck 50k (50K) |
Foresthill, California, United States |
| 10 Jun 2021 |
Warhammer 100 (100 Miles) |
Slade, Kentucky, United States |
| 11 Jun 2021 |
The Cotswold Way (Cotswold Way: North to South) |
Cotswold, England, United Kingdom |
| 12 Jun 2021 |
Kettle Moraine 100 Endurance Run (100K|100 Miler) |
Whitewater, Wisconsin, United States |
| 12 Jun 2021 |
Sinks Canyon Rough & Tumble Trail Runs (50K|18K) |
Lander, Wyoming, United States |
| 12 Jun 2021 |
Lumberjack 100 (100 Miler) |
Port Gamble, Washington, United States |
| 12 Jun 2021 |
Holcolm Valley Trail Run (7 Miles|15 Miles|33 Miles) |
Minnelusa, California, United States |
| 12 Jun 2021 |
South Downs Way 100 (100 Miles) |
Winchester, England, United Kingdom |
| 12 Jun 2021 |
River of No Return (53k) |
Challis City Park, Idaho, United States |
| 12 Jun 2021 |
Golden Gate Dirty 30 (12 Miler|50k) |
Black Hawk, Colorado, United States |
| 12 Jun 2021 |
Old Gabe (30K|50K) |
Bozeman, Montana, United States |
| 12 Jun 2021 |
Lighthouse 100 (100 Miler) |
Petoskey, Michigan, United States |
| 12 Jun 2021 |
Mountain to Meadow (Half Marathon|10k) |
Lolo, Montana, United States |
| 18-19 Jun 2021 |
Bighorn Trail Run (32 Miler|100 Miler|52 Miler) |
Sheridan, Wyoming, United States |
| 19 Jun 2021 |
Funk Bottoms Gravel 100K\200K (200K|100K) |
Glenmont, Ohio, United States |