| 30 Sep 2023 |
Iron Horse Ultra 100 (100 Miles) |
Town Of St. Paul, Alberta, Canada |
| 30 Sep 2023 |
Gran Pretzelismo Triathlon (1.5km Swim|10km Run|40km Bike) |
Chicago, Illinois, United States |
| 30 Sep 2023 |
Elk-Kings 25k/50k (25K|50K) |
Tillamook, Oregon, United States |
| 30 Sep 2023 |
Range of Light Trail Races (50K|33K|10K|5K) |
Bishop, California, United States |
| 30 Sep 2023 |
Crested Butte Ultra (105K|55K) |
Crested Butte, Colorado, United States |
| 30 Sep 2023 |
Runtheberg (Runtheberg Extreme Day Two|Runtheberg Challenge Day One|Runtheberg Challenge Day Two|Runtheberg Lite Day Two|Runtheberg Lite Day One|Runtheberg Extreme Day One) |
Bergville, GT, South Africa |
| 30 Sep 2023 |
Oregon Coast 50k (50K|20 Miler) |
Yachats, Oregon, United States |
| 30 Sep 2023 |
Tulsa Urban Adventure (100 Miles) |
Tulsa, Oklahoma, United States |
| 30 Sep 2023 |
Mt. Taylor 50K (50K) |
Grants, New Mexico, United States |
| 30 Sep 2023 |
Saddle2Surf (100 Miler) |
Norco, California, United States |
| 01 Oct 2023 |
Twin Cities Marathon (Marathon) |
Minneapolis, Minnesota, United States |
| 01 Oct 2023 |
Black Forest Ultra (100 km) |
North Bend, Pennsylvania, United States |
| 01 Oct 2023 |
Field Station Frenzy 5K Trail Run & Walk (5K|2K) |
Porter, Indiana, United States |
| 7-8 Oct 2023 |
Midstate Massive Ultra Trail (30 Miler|100 Miler|50 Miler) |
New Ipswich, New Hampshire, United States |
| 7-8 Oct 2023 |
Midstate Massive Ultra Trail (30 Miler|50 Miler|100 Miler) |
Charlton, Massachusetts, United States |
| 07 Oct 2023 |
Tesla Hertz Run (100 Miler) |
Suffolk County, New York, United States |
| 07 Oct 2023 |
Cuyamaca 100K (100K) |
Julian, California, United States |
| 07 Oct 2023 |
Baker Lake 50K (50K) |
Baker Lake, Washington, United States |
| 07 Oct 2023 |
Flagstaff Sky Peaks Mountain Runs (26K|50K|50 Miler|10 K) |
Coconino County, Arizona, United States |
| 07 Oct 2023 |
Harrisonburg Half Marathon (Half Marathon) |
Harrisonburg, Virginia, United States |