| 24 Feb 2018 |
Salmon Falls 50k (50k) |
Coloma, California, United States |
| 03 Mar 2018 |
Singletrack Stampede (22k|42k) |
Calabasas, California, United States |
| 03 Mar 2018 |
Griffith Park Trail Marathon (Half-Marathon|50k|Marathon) |
Los Angeles, California, United States |
| 03 Mar 2018 - 07 Mar 2020 |
Seneca Creek Greenway Trail Marathon, 50K & Relay (50k|Seneca Trail Marathon. ) |
Gaithersburg, Maryland, United States |
| 03 Mar 2018 |
Way Too Cool (50k) |
Cool, California, United States |
| 17 Mar 2018 |
Mesquite Canyon Trail Runs (30 K|Half Marathon|50 K|50 Miler|8 K) |
Waddell, Arizona, United States |
| 17 Mar 2018 |
Ruck a Chuck 50k (50k) |
Foresthill, California, United States |
| 17 Mar 2018 |
Chuckanut 50k (50k) |
Bellingham, Washington, United States |
| 18 Mar 2018 |
Los Angeles Marathon (Marathon) |
Los Angeles, California, United States |
| 23 Mar 2018 |
GORTEX Grand Traverse (Grand Traverse) |
Crested Butte, Colorado, United States |
| 24 Mar 2018 |
Great Race of Agoura Hills (Half Marathon|5k) |
Agoura Hills, California, United States |
| 24 Mar 2018 |
Crown King Scramble (50 K) |
Phoenix, Arizona, United States |
| 24 Mar 2018 |
Nine Trails 35 Mile Endurance Run (35 Miler) |
Santa Barbara, California, United States |
| 25 Mar 2018 |
Behind the Rocks (30k|50k|50 Miler) |
Moab, Utah, United States |
| 25 Mar 2018 |
White Mountains 100 (100 Miler) |
Fairbanks, Alaska, United States |
| 30 Mar 2018 |
Badger Mountain Challenge (50 mile|100 mile) |
Richland, Washington, United States |
| 31 Mar 2018 |
Georgia's Death Race (68 miler) |
Blairsville, Georgia, United States |
| 07 Apr 2018 |
Yamacraw (20K|50K) |
Stearns, Kentucky, United States |
| 07 Apr 2018 |
American River (50 miler) |
Folsom, California, United States |
| 07 Apr 2018 |
Woodside/Purisima Creek Crossover (50k|35k) |
Redwood City, California, United States |