May Ultras in the USA
Bear Mountain, NY
Spartan Trail - Bear Mountain Trail Challenge
May 4, 2024
Nashville, IN
Dances With Dirt - Gnaw Bone
May 18, 2024
Bronx, NY
Van Cortlandt Park 50K
May 4, 2024
Portland, OR
Stumptown Trail Runs
May 27, 2024
May 25, 2024
Potosi, MO
Berryman Marathon & 50 Miler
May 18, 2024
Glen Rose, TX
High Hope Endurance Run
May 25, 2024
May 26, 2024
Chillicothe, OH
The Big Deal at Great Seal
May 6, 2023
Fountain Hills, AZ
Adrenaline Night Runs
May 18, 2024
Bellingham, WA
Ski to Sea
May 26, 2024
Plainview, NY
Greenbelt Trail 50K
May 13, 2023
Bastrop, TX
Wildflower Trail Runs
May 4, 2024
May 5, 2024
Rochester, NY
Mind The Ducks 12 Hour
May 11, 2024
Bend, OR
Bend Beer Chase
May 4, 2024
New Paltz, NY
Rock The Ridge
May 4, 2024
Lutsen, MN
Superior Spring Trail Races
May 18, 2024
Athens, OH
Thunderbunny Trail Races
May 11, 2024
Waxhaw, NC
Waxhaw Trail Fest
May 6, 2023
Fort Valley, VA
Massanutten Mountain Trails 100 Mile Run
May 18, 2024
Berkeley, CA
Grizzly Peak Trail Run
May 11, 2024
Colorado Springs, CO
Valkyrie Trail Race
May 11, 2024
Ram Party
May 18, 2024
May 19, 2024
Fairmont, WV
EHQ Valley Falls 6 & 12 Hour
May 4, 2024
York, ME
Big A 50K Trail Race
May 6, 2023
Philadelphia, PA
Dirty German Endurance Fest
May 11, 2024
Terre Haute, IN
Hawthorn Half Day Relay & Ultra
May 25, 2024
Charlotte, NC
Time Laps
May 17, 2024
Park City, UT
Running with Ed
May 18, 2024
Bethel, OH
6 Hours of Power (East Fork State Park)
May 25, 2024
East Fork Trail Race
May 25, 2024
May 26, 2024
Stinson Beach, CA
Miwok 100K
May 4, 2024
Binghamton, NY
Loop the Lemur at the Ross Park Zoo
May 18, 2024
Folsom, CA
Folsom Lake Trail Run
May 4, 2024
Traverse City, MI
Traverse City Trail Running Festival
May 11, 2024
May 10, 2024
Buena Vista, CO
Collegiate Peaks Trail Run
May 4, 2024
Pittsfield, VT
Peak Bloodroot Ultra
May 10, 2024
May 11, 2024
May 8, 2024
McMinnville, OR
The Race to Space
May 13, 2023
Los Angeles, CA
Hollywood to the Sea Road & Trail Relay
May 4, 2024
Laramie, WY
Wyoming Marathon Races
May 28, 2023
Key West, FL
KEYS100
May 18, 2024
Columbia, SC
Firebreak Running Festival
May 13, 2023
Bishop, CA
Bishop High Sierra Ultras
May 18, 2024
Dousman, WI
Bunk House Trail Runs
May 25, 2024
Winder, GA
Fort Yargo Ultra
May 18, 2024
Holly, MI
Ode to the Night
May 6, 2023
Lewis Center, OH
Alum Creek Trail Race
May 18, 2024
May 19, 2024
Fabius, NY
Highland Forest 1-2-3 Trail Run
May 27, 2023
Pittsburgh, PA
Miles 2 Meals 100 Mile Relay
May 20, 2023
Reno, NV
Silver State 50-mile and 50K Endurance Runs
May 20, 2023
Reno-Tahoe Odyssey Relay Run Adventure
May 31, 2024
Cleveland Heights, OH
The Forgotten
May 13, 2023
Smyrna, GA
Underground Circus 100
May 25, 2024
Winthrop, WA
Sun Mountain
May 19, 2024
May 18, 2024
Thurmond, WV
Highball to Thurmond Ultra & Relay
May 19, 2024
Galena, IL
Galena Sky Trail Race
May 11, 2024
San Francisco, CA
San Francisco 50 Miler
May 18, 2024
Fall River, MA
Watuppa Trail Races
May 12, 2024
Corvallis, OR
McDonald Forest 50K Trail Run
May 4, 2024
Charleston, WV
Middle Ridge Monster 8H Run
May 13, 2023
Pasadena, CA
Pasadena Running Company 50K Relay
May 28, 2023
Lone Pine, CA
Wild Wild West Marathon
May 6, 2023
La Grange, WI
Ice Age Trail Run
May 11, 2024
Pollock Pines, CA
Trail Run at Sly Park
May 11, 2024
Watford City, ND
MDH Buck Fifty Ultra Endurance Race
May 1, 2023
Brandenburg, KY
Ragnar Trail Kentucky
May 17, 2024
San Diego, CA
Pacific Crest Trail 50 (PCT 50)
May 11, 2024
Los Alamos, NM
Jemez Mountain Trail Runs
May 11, 2024
Millburn, NJ
Mayapple Trail Run
May 18, 2024
Des Moines, IA
Market to Market Relay - Iowa
May 11, 2024
Wartrace, TN
Strolling Jim Run
May 4, 2024
New Gloucester, ME
Trail Festival at Pineland Farms
May 27, 2023
May 28, 2023
Faribault, MN
Maple Syrup Fun Run
May 4, 2024
Yellow Springs, OH
Tie Dye 50K
May 18, 2024
Portersville, PA
Glacier Ridge Trail Ultra
May 11, 2024
Wendover, UT
Salt Flats Endurance Runs
May 3, 2024
Graford, TX
Possums Revenge
May 18, 2024
Windsor, CO
Weld Your Mettle Ultra Marathon
May 25, 2024
Pine, AZ
Pine Trail Run
May 4, 2024
Blue Ridge, GA
Cruel Jewel 100
May 17, 2024
Cruel Jewel 50
May 18, 2024
Dover, OH
Running With My Gnomies
May 11, 2024
Susanville, CA
Paiute Meadows Trail Run
May 13, 2023
Cortland, NY
Finger Lakes P2B Relay
May 20, 2023
Boiling Springs, PA
Bubbletown What The Duck Ultra
May 27, 2023
Ashburnham, MA
Wapack and Back Trail Races
May 13, 2023
Burnet, TX
Spider Mountain Trail Race
May 11, 2024
Wellsboro, PA
Hills Creek Endurance Challenge
May 4, 2024
Richfield, OH
HIgh Lea 6/12/24
May 18, 2024
Norfolk, NE
Relay for Malawi
May 27, 2023
East Ridge, TN
Locomotion Endurance 6/12/24
May 4, 2024
Rush City, MN
Growing Green Challenge
May 27, 2023
May 28, 2023
Burnsville, NC
Quest For The Crest Trail Races
May 18, 2024
Kendallville, IN
Armed Forces Endurance Run
May 18, 2024
Eldridge, IA
Corn Belt Running Club 24 Hour Run
May 6, 2023
Ashford, CT
Camp Challenge
May 20, 2023
Gregory, MI
Island Time
May 3, 2024
May 4, 2024
Belleville, WI
Sugar Badger 50/50
May 25, 2024
Marietta, SC
Knock on Woodstock
May 11, 2024
Tamworth, NH
White Lake Ultra
May 4, 2024
Perrysville, OH
Mohican Trail Race
May 11, 2024
May 12, 2024
Stanhope, NJ
TPK Run the Jewels
May 18, 2024
Cordesville, SC
Wambaw Swamp Stomp
May 11, 2024
Black Canyon City, AZ
Cocodona 250
May 6, 2024
Trail, OR
Lost Creek Trail Run
May 6, 2023
Gold Beach, OR
Secret Beach 100K/50M
May 11, 2024
Fremont, NE
Crown of the Crest
May 25, 2024
Pittsburg, TX
East Texas Ultra
May 18, 2024
May 19, 2024
Mount Carmel, UT
Ragnar Trail Relay - Zion
May 12, 2023
Ridgeland, SC
Patriots Run Trail Walk/Run
May 5, 2024
Jefferson, IA
Market to Market Relay - Iowa
May 11, 2024
Larkspur, CO
Greenland Trail Races
May 4, 2024
Forest Ranch, CA
Little Loco Relay
May 4, 2024
Sharon Hill, PA
Dawn to Dusk to Dawn Ultras
May 11, 2024
Quanah, TX
Chupacabra 50
May 4, 2024
Stearns, KY
Yamacraw Trail Runs
May 20, 2023
May 21, 2023
Pawhuska, OK
Flower Moon
May 11, 2024
Mount Vernon, IA
Palisades Punisher or Promenade
May 4, 2024
Divide, CO
Endure Trail Runs
May 18, 2024
Fort Collins, CO
Quad Rock 50
May 11, 2024
Portageville, NY
Sehgahunda Trail Marathon & Relay
May 18, 2024
May 19, 2024
Hatch, UT
Bryce Canyon Ultras
May 18, 2024
Gold Bar, WA
Wallace Falls Trail Run
May 20, 2023
Stockton, UT
Connor's Claims
May 20, 2023
Quincy, CA
Greenhorn Ranch Trail Run
May 20, 2023
Cherry Creek, NY
Hoof It on the Hill
May 11, 2024
Grayson Highlands State Park, VA
Grayson Highlands
May 5, 2024
May 4, 2024
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Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
1. MDH Buck Fifty Ultra Endurance Race
-
Past DateMay 1, 2023Monday
-
150M run
More Information
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Watford City, ND
McKenzie County, ND
2. Island Time
-
May 3, 2024Friday
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24H trail run
More Information
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Gregory, MI
Livingston County, MI
3. Salt Flats Endurance Runs
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May 3, 2024Friday
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100M, 50M, 50K, 5K run
More Information
-
Wendover, UT
Tooele County, UT
4. Bend Beer Chase
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May 4, 2024Saturday
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55M relay
More Information
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Bend, OR
Deschutes County, OR
5. Chupacabra 50
-
May 4, 2024Saturday
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50M, 53K, 20K, 9K trail run
More Information
-
Quanah, TX
Hardeman County, TX
6. Collegiate Peaks Trail Run
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May 4, 2024Saturday
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50M, 25M trail run
More Information
-
Buena Vista, CO
Chaffee County, CO
7. EHQ Valley Falls 6 & 12 Hour
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May 4, 2024Saturday
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12H, 6H trail run
More Information
-
Fairmont, WV
Marion County, WV
8. Folsom Lake Trail Run
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May 4, 2024Saturday
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50K, 30K, 13.1M, 10K trail run
More Information
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Folsom, CA
Sacramento County, CA
9. Grayson Highlands
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May 4, 2024Saturday
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50M, 50K trail run
More Information
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Grayson Highlands State Park, VA
Grayson County, VA
10. Greenland Trail Races
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May 4, 2024Saturday
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50K, 25K, 8M, 4M trail run
More Information
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Larkspur, CO
Douglas County, CO
11. Hacienda Hills Run
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May 4, 2024Saturday
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50K, 26.2M, 13.1M, 9M, 10K, 5K trail run
More Information
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San Jose, CA
Santa Clara County, CA
12. Hills Creek Endurance Challenge
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May 4, 2024Saturday
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12H, 6H, 3H trail run
More Information
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Wellsboro, PA
Tioga County, PA
13. Hollywood to the Sea Road & Trail Relay
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May 4, 2024Saturday
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75M trail run | 75M relay
More Information
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Los Angeles, CA
Los Angeles County, CA
14. Island Time
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May 4, 2024Saturday
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12H, 6H trail run
More Information
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Gregory, MI
Livingston County, MI
15. Little Loco Relay
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May 4, 2024Saturday
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65M relay
More Information
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Forest Ranch, CA
Butte County, CA
16. Locomotion Endurance 6/12/24
-
May 4, 2024Saturday
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24H, 12H, 6H run
More Information
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East Ridge, TN
Hamilton County, TN
17. Maple Syrup Fun Run
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May 4, 2024Saturday
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50K, 25K, 10K, 5K, 1M trail run
More Information
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Faribault, MN
Rice County, MN
18. McDonald Forest 50K Trail Run
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May 4, 2024Saturday
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50K trail run
More Information
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Corvallis, OR
Benton County, OR
19. Miwok 100K
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May 4, 2024Saturday
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100K trail run
More Information
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Stinson Beach, CA
Marin County, CA
20. Palisades Punisher or Promenade
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May 4, 2024Saturday
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8H, 4.8M trail run
More Information
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Mount Vernon, IA
Linn County, IA
For the love of all that Is good And moisture wicking...
Though we Try To be accurate And On top Of things... Race details can change When we aren't lookin. And once in a while we simply make a mistake.
ALWAYS visit the race's website for the most complete and accurate race information.
ALWAYS visit the race's website for the most complete and accurate race information.