| 03 Feb 2023 |
Orcas Island 100 (100 Miler) |
Orcas Island, Washington, United States |
| 04 Feb 2023 |
Mill Stone 50K (50K) |
Fort Mill, South Carolina, United States |
| 04 Feb 2023 |
Castlewood Cup (Fair-Weather Conditions Route|Ice/Snow Conditions Route) |
Ballwin, Missouri, United States |
| 04 Feb 2023 |
Castlewood Cup (15K - Fair Weather|15k - Fair Weather - Course Monitors|Plan B - Course Monitors|"Plan B") |
Ballwin, Missouri, United States |
| 05 Feb 2023 |
Surf City USA (Half Marathon|Marathon) |
Huntington Beach, California, United States |
| 11 Feb 2023 |
Outlaw 100 Oklahoma (50 Miler) |
Latimer County, Oklahoma, United States |
| 11 Feb 2023 |
Grandmaster Ultras (100 Miler) |
Littlefield, Arizona, United States |
| 11 Feb 2023 |
Tarawera Ultramarathon (102k|21k|50k|100 Miles) |
Rotorua, Bay of Plenty, New Zealand |
| 11 Feb 2023 |
Xterra Boney Mountain (21k|6k) |
Newbury Park, California, United States |
| 12 Feb 2023 |
Redondo Beach Superbowl 10k/5k (10k|5k) |
Redondo Beach, California, United States |
| 12 Feb 2023 |
Running Up for Air Mount Sentinel (RUFA) |
Missoula, Montana, United States |
| 12 Feb 2023 |
Mercedes-Benz Marathon (Marathon|Half Marathon) |
Birmingham, Alabama, United States |
| 17 Feb 2023 |
FOURmidable (50K|35.5K) |
Auburn, California, United States |
| 18 Feb 2023 |
Susitna 100 (100 Miles) |
Big Lake, Alaska, United States |
| 18 Feb 2023 |
Moab's Red Hot 50+ (55K|33K) |
Moab, Utah, United States |
| 18 Feb 2023 |
The Ranch 50k (50k|1/2 Marathon) |
Escondido, California, United States |
| 18 Feb 2023 |
Placerita Canyon Trail Runs (10k|Half Marathon|50k|30k) |
Santa Clarita, California, United States |
| 18 Feb 2023 |
Black Canyon Ultras (100K|60K) |
Spring Valley, Arizona, United States |
| 24-25 Feb 2023 |
Novant Health Wilmington NC Marathon (Marathon Relay|Kids 1 mile Glow Run|Marathon|Half Marathon|5K) |
Wrightsville Beach, North Carolina, United States |
| 24 Feb 2023 |
Lake Ouachita Vista Trail (100 Miler) |
Joplin, Arkansas, United States |