| 04 Dec 2021 |
Anza Borrego Cuyamaca 50 (ABC 50) (50 Miler) |
Harrison Park, California, United States |
| 04 Dec 2021 |
Devil Dog Ultras (100 Miler) |
Belfair Crossroads, Virginia, United States |
| 04 Dec 2021 |
San Joaquin River Trail Runs (50K|100K) |
Friant, California, United States |
| 04 Dec 2021 |
Daytona 100 (100 Miler) |
Duval County, Florida, United States |
| 04 Dec 2021 |
Death Valley Trail Marathon & Half Marathon (Marathon|Half Marathon) |
Death Valley, California, United States |
| 04 Dec 2021 |
McDowell Mountain Frenzy (50 Miler|50K) |
Fountain Hills, Arizona, United States |
| 05 Dec 2021 |
Over the Hill Track Club High Desert (50K|30K) |
Ridgecrest, California, United States |
| 05 Dec 2021 |
California International Marathon (CIM) (Marathon) |
Sacramento, California, United States |
| 11 Dec 2021 |
Hitchcock Experience (100 Miler) |
Honey Creek, Iowa, United States |
| 12 Dec 2021 |
Santa to the Sea (Half Marathon) |
Oxnard, California, United States |
| 18 Dec 2021 |
Cave Creek Thriller (11K|50K|24K|5K) |
Cave Creek, Arizona, United States |
| 18 Dec 2021 |
Light the Way 5k (Kid's Fun Run|Light the Way 5k) |
Missoula, Montana, United States |
| 18 Dec 2021 |
ROOT (Running Out Of Time) 12 and 24 Hour Race (5k|12 hr|24 hr) |
San Diego, California, United States |
| 18 Dec 2021 |
Paramount Ranch Trail Runs (1/2 Marathon|50K|Marathon|30K|10K) |
Los Angeles, California, United States |
| 27 Dec 2021 |
Charleston 100 (100 Miler) |
Jacksonboro, South Carolina, United States |
| 31 Dec 2021 |
New Year's Resolution 8K Run & 5K Run/Walk (8K Run|5K Run/Walk) |
Flint, Michigan, United States |