| 826 | 18 Oct 25 | Bateman Island Last Chance 4K | 4K | Richland, WA |
| 827 | 18 Oct 25 | Tennessee Running Tour - David Crockett | 10K | Lawrenceburg, TN |
| 828 | 18 Oct 25 | Halloween Howl Fun Run | 1M | Burlington, VT |
| 829 | 18 Oct 25 | Delaware and Raritan Canal parkrun | 5K | South Bound Brook, NJ |
| 830 | 18 Oct 25 | Creekside parkrun | 5K | Archdale, NC |
| 831 | 18 Oct 25 | Runnin' with the Nighthawks 5K | 1M/5K | Prosper, TX |
| 832 | 18 Oct 25 | Portland Triathlon Club Parkrose Swim Series | triathlon | Portland, OR |
| 833 | 18 Oct 25 | Wayside Youth & Family Support Network 5K4Kids Race/Walk and Family Fair at Framingham, MA | Kids Run | Framingham, MA |
| 834 | 19 Oct 25 | Run with the Nuns 5K | 5K | Lemont, IL |
| 835 | 19 Oct 25 | The 2025 Bill Bone Tropical Triathlon | triathlon | Lake Worth, FL |
| 836 | 19 Oct 25 | 2025 Cal Tri LA | triathlon | Playa del Rey, CA |
| 837 | 19 Oct 25 | 2025 Ironman California (Sacramento) 140.6 | triathlon | Sacramento, CA |
| 838 | 19 Oct 25 | Fort De Soto Triathlon Series #4 | Triathlon/Ultra | St. Petersburg, FL |
| 839 | 19 Oct 25 | The 2025 Great Floridian Triathlon & Multisport Festival | triathlon | Clermont, FL |
| 840 | 19 Oct 25 | 2025 Lake Hodges Off-Road Duathlon | triathlon | San Diego, CA |