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Ultramarathon Events in United States 2025-2026
Ultramarathons, or ultras, are any running races beyond the standard marathon distance of 26.2 miles (or 42.2k). The most common ultra distances are 50k, 100k, 50 miles, or 100 miles, but each event is unique in terms of distance and terrain. The International Association of Athletics Federation recognises world records at ultramarathon events that have a distance of 100km. There are even 24hr ultramarathons, where the distance is unlimited, or multiday ultras, where the distance can extend beyond 1000km. There are a couple of city-based ultramarathons, but most ultras make the most of the USA's stunning scenery and landscapes. A lot of these events go off-road and require trail-running over difficult terrain with steep climbs or along rugged coastlines. There are over 1,500 ultramarathon events in the USA. One of the most famous and most difficult events is the Badwater Ultramarathon, which is 135 miles long through the searing heat and arduous terrain of Death Valley.
9
Ragnar Trail Zion
Orderville, US
Fri 9th May 2025
10
Zion 100-Mile Challenge
Orderville, US
Wed 10th Sep 2025
22
Valencia Trail Race
Santa Clarita, US
Sat 22nd Mar 2025
12
Silver Moon Race - Kings River
US
Sat 12th Apr 2025
5.0
2
Ragnar Trail North Texas
Alvord, US
Fri 2nd May 2025
6
Ragnar Trail Colorado
Snowmass Village, US
Fri 6th Jun 2025
6
Redwoods 100-Mile Challenge
Loma Mar, US
Wed 6th Aug 2025
25
Oceans 50 Relay Race
Flagler Beach, US
Sat 25th Jan 2025
25
47 Miles of HOPE 5k/10k/47 Miler/Relay/Fun Run
Winston-Salem, US
Sat 25th Jan 2025
25
Cowboy YETI
Bastrop, US
Sat 25th Jan 2025
31
KILIMANJARO TRAILS FESTIVAL
Corona, US
Fri 31st Jan 2025
1
Uwharrie Mountain Run
Troy, US
Sat 1st Feb 2025
1
February Frosty Fifty
Decatur, US
Sat 1st Feb 2025
1
ER 50
Chattanooga, US
Sat 1st Feb 2025
1
Frozen 50K
Cassadaga, US
Sat 1st Feb 2025
8
Black Canyon Charity Bibs
Spring Valley, US
Sat 8th Feb 2025
8
Railway Marathon & Half Marathon presented by CraneWorks
Birmingham, US
Sat 8th Feb 2025
8
North Texas Ultra
Abilene, US
Sat 8th Feb 2025
9
Croomfest 2025 Trail Run
Brooksville, US
Sun 9th Feb 2025
14
Running Up for Air - Staunton Rocks
Pine, US
Fri 14th Feb 2025
15
Camino Real Double
Lake Forest, US
Sat 15th Feb 2025
15
Yonah Mountain Vertical Challenge
White County, US
Sat 15th Feb 2025
15
MRT 5k to 50k
Statesville, US
Sat 15th Feb 2025
15
North Texas Ultra
Abilene, US
Sat 15th Feb 2025
15
Sylamore 50K/25K Trail Run
Mountain View, US
Sat 15th Feb 2025
15
Woolley Trail Runs
Sedro-Woolley, US
Sat 15th Feb 2025
21
Florida ANVIL Ultra Triathlon
Clermont, US
Fri 21st Feb 2025
22
Lord Hill Trail Run
Snohomish, US
Sat 22nd Feb 2025
22
Kennekuk Road Runners - Members Only Fat Ass
Danville, US
Sat 22nd Feb 2025
22
Febapple Frozen 50M, 50K, 20M, 10M
South Orange Village, US
Sat 22nd Feb 2025
22
Arbuckle 100
Davis, US
Sat 22nd Feb 2025
22
Up Around The Bend Trail Run
Fredericksburg, US
Sat 22nd Feb 2025
28
Grandmaster Ultras 2025
Mesquite, US
Fri 28th Feb 2025
28
Flat Top Mesa Endurance Run 2025
Mesquite, US
Fri 28th Feb 2025
28
Hachie 50 Marathon, Ultra and Relay
Waxahachie, US
Fri 28th Feb 2025
1
Newport News One City Marathon
Newport News, US
Sat 1st Mar 2025
1
Dos Senderos
Comfort, US
Sat 1st Mar 2025
1
DINO Trail Run - Mounds State Park
Anderson, US
Sat 1st Mar 2025
1
Monument Valley Ultra
Oljato-Monument Valley, US
Sat 1st Mar 2025
1
Lake Vian Hilltop Run
Vian, US
Sat 1st Mar 2025
7
4x4x48 for ICT SOS
Wichita, US
Fri 7th Mar 2025
8
Tombstone 30k/50k Trail Run
Valparaiso, US
Sat 8th Mar 2025
8
2025 Siuslaw Dunes
Florence, US
Sat 8th Mar 2025
8
Crazy Desert Trail Race
San Angelo, US
Sat 8th Mar 2025
8
Perfect Day 50K Loudoun
Sterling, US
Sat 8th Mar 2025
8
Land Between the Lakes Trail Runs
Grand Rivers, US
Sat 8th Mar 2025
8
Labor of Love 5K, 10K, 1/2 Marathon, Marathon, and 50K
Clark County, US
Sat 8th Mar 2025
8
The Great Root Trail Race
Dallas, US
Sat 8th Mar 2025
