July 2026 Ultra Races
4 upcoming 100Ks in July.
Silverheels Trail Runs
441-463 Boreas Pass Rd, Como, CO
100K · Ultra · Other
Avg 71° / 42°·9,377 ft city elevation Avg 71° / 42°9,377 ft city elevation Beaverhead Endurance Runs 100K and 55K
561 Geertson Creek Rd, Salmon, ID
100K · Ultra
Avg 86° / 51°·4,036 ft city elevation Avg 86° / 51°4,036 ft city elevation Never Summer 100km & 60km
58998 CO-14, Walden, CO
100K · 100 Mile · Ultra
Avg 77° / 39°·8,069 ft city elevation Avg 77° / 39°8,069 ft city elevation Hawaii Kai Ultra Run XTreme 2026
555 Kealahou St, Honolulu, HI
Half Marathon · Marathon · 50K · 50 Mile · 100K · 100 Mile · Other
Avg 80° / 70°·199 ft city elevation Avg 80° / 70°199 ft city elevation August 2026 Ultra Races
2 upcoming 100Ks in August.
Habanero Hundred
5389 Mill Creek Rd., Cat Spring, TX
10K · Half Marathon · Marathon · 50K · 100K · 100 Mile · Ultra
Avg 95° / 73°·258 ft city elevation Avg 95° / 73°258 ft city elevation Falls & Forest 12‑Hour Challenge
100 Saunders Spring Ln, Radcliff, KY
50K · 100K · Other
Avg 85° / 64°·739 ft city elevation Avg 85° / 64°739 ft city elevation September 2026 Ultra Races
2 upcoming 100Ks in September.
Paris Texas Marathon
2025 S Collegiate Dr, Paris, TX
5K · 10K · Half Marathon · Marathon · 50K · 100K
Avg 88° / 65°·585 ft city elevation Avg 88° / 65°585 ft city elevation Sangre de Cristo Trail Festival
Grape Creek Trailhead (Almost), Westcliffe, CO
8 Mile · 50K · 50 Mile · 100K · Ultra · Other
Avg 69° / 33°·8,080 ft city elevation Avg 69° / 33°8,080 ft city elevation October 2026 Ultra Races
8 upcoming 100Ks in October.
Iron Hike - Fall Answer the Bell Ultra Trail Marathon - Full (Backyard Ultra Format) - 100+ Miles | 50,400' Elevation | 84-Hour | Run, Hike or Walk
Mohawk Mountain Ski Area, Cornwall, CT
100K
Avg 70° / 44°·674 ft city elevation Avg 70° / 44°674 ft city elevation Iron Hike - Fall Everest / 29029 Everesting Ultra Trail Marathon - 61+ Miles | 29,029'+ Elevation | 72-Hour | Run, Hike or Walk
Mohawk Mountain Ski Area, Cornwall, CT
100K
Avg 70° / 44°·674 ft city elevation Avg 70° / 44°674 ft city elevation Iron Hike - Fall Everest / 29029 Everesting Ultra Trail Marathon Relay - 61+ Miles | 29,029'+ Elevation | 72-Hour | Run, Hike or Walk
Mohawk Mountain Ski Area, Cornwall, CT
100K
Avg 70° / 44°·674 ft city elevation Avg 70° / 44°674 ft city elevation IronHike Mohawk Mountain Fall 2026
46 Great Hollow Road, Mohawk Mtn Ski Area, Cornwall, CT
100K · 100 Mile · Ultra · Other
Iron Hike - Fall Answer the Bell Ultra Trail Marathon - Basic (Backyard Ultra Format) - 28+ Miles | 14,400'+ Elevation | 24-Hour | Run, Hike or Walk
Mohawk Mountain Ski Area, Cornwall, CT
100K
Avg 69° / 43°·674 ft city elevation Avg 69° / 43°674 ft city elevation Wolverine State 100
101 E Lake St, Petoskey, MI
50K · 100K · 100 Mile
Avg 59° / 41°·839 ft city elevation Avg 59° / 41°839 ft city elevation Among the Trees
S57 W35510 Co Road ZZ, Dousman, WI
50K · 100K
Avg 53° / 34°·866 ft city elevation Avg 53° / 34°866 ft city elevation Jackson County Ultras
Pyoca Camp and Retreat Center, Inc., 886 E County Rd 100 S, Brownstown, IN
1 Mile · 10 Mile · 50K · 100K
Avg 61° / 38°·617 ft city elevation Avg 61° / 38°617 ft city elevation November 2026 Ultra Races
2 upcoming 100Ks in November.
Conquer the Castle
Forest Picnic Area, Mayfield, OH
5K · 10 Mile · 50K · 100K · Other
Ponderosa Polar Challenge 2026
Twin Knolls Rd, Orderville, UT
5K · 10K · Half Marathon · Marathon · 50K · 50 Mile · 100K · 100 Mile · Ultra
Avg 60° / 28°·5,453 ft city elevation Avg 60° / 28°5,453 ft city elevation December 2026 Ultra Races
1 upcoming 100K in December.
Last Chance Ultra
6176 S State Hwy VV, Rogersville, MO
10 Mile · 50K · 50 Mile · 100K · 100 Mile
Avg 50° / 28°·1,424 ft city elevation Avg 50° / 28°1,424 ft city elevation January 2027 Ultra Races
1 upcoming 100K in January.
Big Bend Ultra
21800 FM170, Terlingua, TX
10K · 100K · Other
Avg 67° / 36°·2,508 ft city elevation Avg 67° / 36°2,508 ft city elevation February 2027 Ultra Races
1 upcoming 100K in February.
Grandmaster Ultras 2027
501 Hillside Dr, Mesquite, NV
50K · 50 Mile · 100K · 100 Mile
Avg 68° / 37°·1,622 ft city elevation Avg 68° / 37°1,622 ft city elevation March 2027 Ultra Races
2 upcoming 100Ks in March.
The Pistol
636 Vose Road, Alcoa, TN
10 Mile · 50K · 50 Mile · 100K · 100 Mile · Ultra · Other
Avg 60° / 39°·835 ft city elevation Avg 60° / 39°835 ft city elevation F.I.T. 'Rock Trail Race
1464 Diamond Hill Rd, Cumberland, RI
1 Mile · 5K · 8K / 5 Mile · 8 Mile · 100K
Avg 46° / 28°·308 ft city elevation Avg 46° / 28°308 ft city elevation April 2027 Ultra Races
1 upcoming 100K in April.
MadCity Ultras
Vilas Shelter - Madison City Park, Madison, WI
50K · 100K
Avg 55° / 34°·871 ft city elevation Avg 55° / 34°871 ft city elevation May 2027 Ultra Races
1 upcoming 100K in May.
DENFIT ULTRA
Cape Vincent, Cape Vincent, NY
50K · 100K
Avg 64° / 41°·294 ft city elevation Avg 64° / 41°294 ft city elevation June 2027 Ultra Races
5 upcoming 100Ks in June.
Rabid Raccoon 100
Brady's Run Park, 121 Brady's Run Rd, Beaver Falls, PA
5K · Half Marathon · Marathon · 100K · 100 Mile · Ultra · Other
Avg 76° / 54°·1,168 ft city elevation Avg 76° / 54°1,168 ft city elevation MoMoFo 100k and 20 mile Fun Run
Morgan Monroe State Forest, Martinsville, IN
100K · Other
Avg 78° / 57°·793 ft city elevation Avg 78° / 57°793 ft city elevation Worlds End Ultramarathon
82 Cabin Bridge Rd, Forksville, PA
50K · 100K
Avg 70° / 51°·1,628 ft city elevation Avg 70° / 51°1,628 ft city elevation Weld Your Mettle Running Festival
11586 Co Rd 80, Eaton, CO
4 Mile · Marathon · 50K · 50 Mile · 100K · Ultra · Other
Avg 82° / 51°·4,831 ft city elevation Avg 82° / 51°4,831 ft city elevation The Longest Day (100k - 50k - 26.2 - 13.1)
220 Lakewood Drive, Greenville, SC
Half Marathon · Marathon · 50K · 50 Mile · 100K
Avg 88° / 68°·927 ft city elevation Avg 88° / 68°927 ft city elevation