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Event Distance(s) State / City
H.U.R.T. Trail 100 Mile Endurance Run
Limit: 100 Location: Honolulu Mauka Trail System, Oahu Cutoff: 36 hours (6:00AM - 6:00PM)
100 Mile
100 K
Hawaii
Oahu
Habanero Hundred
Habanero Hundred: 100m, 100k, 50k, and relay teams trail run! 30 hr cut off.
100 Mile
100 K
50 K
Texas
Cat Spring
Hagg Lake Trail Run 25K and 50K
This early season trail run is the kickoff event for the Oregon Trail Ultramarathon Race Series. With a February race date, Hagg Lake doesn't offer the same spectacular scenery as some of the summer alpine runs. What we do try and offer is a fun, well organized, low-key trail run. We also probably offer more mud than any other course in Oregon (ask anyone who ran this race in the past).
50 K
25 K
Oregon
Forest Grove
Hamster Endurance Runs
Hamster Endurance Runs 12 and 24 hour runs in Bellngham Washington.
24 Hours
Washington
Bellingham
Hancock Shaker Village 50
Come enjoy a New England autumn day in the beautiful Berkshires of Massachusetts & New York and run on the Taconic Crest Trail. The Taconic Mountains run parallel to the hill tops of the Appalachian T ...(continued)
50 Mile
Massachusetts
Hancock


Harbison 50K
There are 18 miles of technical single track trails, with the remainder on fire roads, wide trails and stream crossings with plenty of rocks, roots and mud on the beautiful trails of the Harbison Stat ...(continued)
50 K
South Carolina
Columbia
Hardrock Hundred Mile Endurance Run
100 miles, 33,000' total elevation gain, 11,186' average elevation, low point 7,680' at Ouray, high point 14,048' at Handies Peak.
100 Mile
Colorado
Silverton
Haulin Aspen Trail Run
The Hauliní Aspen is one of Oregonís favorite trail running races! Start and finish at beautiful Wanoga Sno-Park (elevation 5500 feet) Spectacular single track, double track and forest service roa ...(continued)
Marathon
Oregon
Bend
Haulin in the Holler
Haulin' in the Holler is a 5K, 25K, 50K Trail Race and Kids Fun Run held in the foothills of West Virginia. This race has something to offer everyone of all ages and skill levels. Hills and trails eas ...(continued)
50 K
25 K
5 K
West Virginia
Eleanor
Haulin in the Holler 5K/25K/50K
Welcome to another running of Haulin' in the Holler, a trail run through the beautiful single track trails of the West Virginia foothills in Putnam County. This event entails 5k, 25k, and 50k trail runs as well as a kids run hosted by the boys of Boy Scout Troop 164 Eleanor, WV and the West Virginia Mountain Trail Runners
50 K
25 K
5 K
West Virginia
Eleanor
Hawk Trail Ultras
This is a graduate-level, no-frills, self-serve hundred. You must have finished a previous 100-mile race since Jan. 1, 2009 in the allotted time to enter the Hawk Hundred. The 32-hour course will be f ...(continued)
100 Mile
50 Mile
Oregon
Lawrence
Helen Klein Ultra Classic
50 Mile
50 K
30 K
California
Sacramento
Hell Hath No Hurry
5th Annual - Hell Hath No Hurry - 4/8/12 Hour Endurance Trail Run & 5 Mile Trail Race This event is a low frills endurance trail run located in Settler's Cabin Park on the western side of Allegheny C ...(continued)
12 Hours
8 Hours
5 Miles
4 Hours
Pennsylvania
Pittsburgh
Hells Hills
Tech Ts, original awards. Aid every 5mi. A rolling twisty single-track.
50 Mile
50 K
25 K
10 K
Texas
Smithville
High Desert 50K Ultra and 30K
The High Desert 50k will again host USATF Southern California Association 50 km Trail Championship, as well as the Southern California RRCA State Championship. We are again the last stop for the Southern California UltraRunners Grand Prix Series
50 K
30 K
California
Ridgecrest
High Mountain Trail Run
Join us for a spectacular day of trail running and support the High Mountain Institute (HMI), a local Leadville non-profit educational institution. The High Mountain Trail Run is a great mid-summer race that can be used to prepare for late-summer ultras or marathons - or just to have a great day of running in the mountains!
50 K
25 K
Colorado
Leadville
Highland Forest 1-2-3
The course is about 95% on hiking trails and 5% dirt roads. The trail is well marked (blazes on trees, and turns are marked). The race begins at 8:30 AM and consists of one, two or three loops on marked trails in Highland Forest.
30 Miles
20 Miles
10 Mile
New York
Fabius
Highlands Sky 40 Mile Trail Run
The West Virginia Mountain Trail Runners present the annual Highlands Sky Trail Run. The event is centered at the Canaan Valley Resort State Park.
40 Miles
West Virginia
Davis
Hilloopy 100+ Relay
The Hilloopy 100+ Relay is the signature race of the day! Form of team of 6 or 10 runners and tackle this one-of-a-kind relay event. No vans, no overnight stays. Just a beautiful nature trail that kee ...(continued)
100 Mile
Wisconsin
Kenosha
Hobo Trail Races Sept. 8, 9, 10
Trail Runner Trophy Series, RRCA State of Illinois Ultra Championship, Trail Races,
50 K
25 K
10 K
Illinois
Loves Park
Hogs Hunt Trail Run
25K loop, dirt trails & jeep roads
50 K
25 K
Texas
Huntsville
Holcomb Valley Trail Run
This is a loop course on the Pacific Crest Trail and U.S. Forest roads in the San Bernardino forest.
33 Miles
15 Miles
7 Miles
California
Big Bear Lake
Holiday Lake 50K
The course consists of two loops. The first loop will be run counterclockwise. At the end of the first loop, runners will retrace their steps and run the course in the opposite direction (clockwise). The course is shady with rolling hills and consists of trails, forest service roads, dirt roads. (This is nothing like the Masochist ... it's much easier!) There will be four aid stations, plus the start/finish area for each loop.
50 K
Virginia
Lynchburg
Horseshoe Lake Trail Run
The course is within the Skyline Ridge, Long Ridge, and Russian Ridge Open Space Preserves. The majority of the course is along the Bay Area Ridge Trail with spectacular views of the Pacific Ocean and ...(continued)
50 K
Marathon
Half Marathon
5 Miles
California
Palo Alto
Horseshoe Trail Run
5k, 10k, 25k, & 50k trail race. Good mix of climbing, drops and windy single track in the trees. The trail consist of primarily single track with some roots and whimsical running through winding tr ...(continued)
50 K
25 K
10 K
5 K
Texas
HItchcock
Hot Hilly Hairy 50K
50K run on cross country course 10 loop on 5k course prize money
50 K
Wisconsin
Kenosha
Hotter than Hell 12 Hour/6 Hour Run
Cameron Park Lake - Cameron Park California, 25 Miles East of Sacramento via Hwy 50
12 Hours
6 Hours
California
Cameron Park
HUFF 50K Trail Run and Relay
A test against distance, time...and, perhaps, Mother Nature. One of North America's largest ultras.
50 K
10 Mile
Indiana
Albion
HUMP Trail Run
The course is a single loop, moderately hilly, with minor stream crossings, single-track trail and just enough of that "wilderness experience" to satisfy the true nature-lover
50 K
Pennsylvania
Landsburg
Hunter Gatherer Ultras and Survival Run
A series of brutally challenging 50k and 100k endurance races and obstacle races covering some uniquely treacherous Texan terrain.
100 K
50 K
Texas
Rocksprings
Hunter S. Thompson Fear & Loathing
50 Mile
50 K
California
San Francisco
HURL Elkhorn 50-Mile Endurance Run
The Elkhorn Mountain Endurance 100k run was changed to a 50 mile run in the summer of 2005. For 2006 a 50K run will also be offered. These runs have been designed to show other ultra runners from all over the United States and Canada the beauty of Montana. The race directors are ultra marathoners and have competed in ultra races throughout the United States.
50 Mile
Montana
Helena
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