Upcoming races with 100 miles distance in July across the USA. Use filters to quickly find races by state, city or race type.
More races:ย USA running calendar
Date Race Distance Location hf:tax:state hf:tax:city hf:tax:typerace 07/11/2025 Silverheels Trail Runs 100K, 100M, 10M, 18M, 50M, 60K Como CO colorado como-co trail 07/11/2025 Notchview Ultra 100M, 12H, 24H, 48H, 6H, 72H Windsor MA massachusetts windsor-ma trail 07/12/2025 Honey Badger 100 100M Cheney KS kansas cheney-ks trail 07/12/2025 Vero Beach Octopus Ultra 100K, 100M, 50K, 50M Vero Beach FL florida vero-beach-fl trail 07/18/2025 High Lonesome 100M Nathrop CO colorado nathrop-co trail 07/18/2025 Ouray 100 Mile Endurance Run 100M Ouray CO colorado ouray-co trail 07/19/2025 Tahoe Rim Trail Endurance Runs 100M, 50K, 56M Carson City NV nevada carson-city-nv trail 07/25/2025 Standhope Ultra Challenge 100M, 30K, 60K Ketchum ID idaho ketchum-id trail 07/26/2025 The Mighty Mosquito Trail Race & Relay 100M, 50K Honeoye Falls NY new-york honeoye-falls-ny trail 07/26/2025 Hood Hundred 100M 100M Mount Hood OR oregon mount-hood-or trail
Choose your favorite distance and save the calendar for later: Half Marathons, Marathons, Ultra Marathons, 5K, 10K, 50K, 50M, 100K, 100M
July Race Calendars:
| 5K Races | 10K Races |
| Half Marathons | Marathons |
| Ultra Marathons | Trail Races |
| 50K Races | 50 Miles Races |
| 100K Races | All Races |
