50Ms in the USA
Indianapolis, IN
Indy Piston Endurance Run
Jun 3, 2023
Lima, OH
UnitedAF Ultramarathon
Oct 19, 2024
Willard, MO
Frisco Railroad Run
Apr 27, 2024
Wichita, KS
Summer Sizzler
Jul 28, 2024
Ellerbe, NC
Bethel Hill Moonlight Boogie
Jun 8, 2024
Waynesville, OH
Dawg Gone Long Run
Jun 29, 2024
Boalsburg, PA
Tussey Mountainback 50 Mile Relay and Ultra
Oct 27, 2024
Saint George, UT
Lake to Lake Relay and Ultra
Mar 1, 2025
Nashville, TN
Nashville Ultramarathon
Oct 19, 2024
Honolulu, HI
Hawaii Kai Ultra Run - XTreme
Jul 27, 2024
Hawaii Kai Ultra Run - Kalama Valley
Dec 14, 2024
Jacksonville Beach, FL
Daytona 100 Ultra
Dec 14, 2024
Brownsville, VT
Vermont 50 Ultra Run
Sep 29, 2024
Henderson, NV
Jackpot Ultras
Feb 14, 2025
Feb 15, 2025
Canandaigua, NY
Can Lake 50 Ultras
Oct 12, 2024
Moab, UT
Dead Horse Ultra
Nov 16, 2024
Key West, FL
KEYS100
May 18, 2024
Memphis, TN
Big Buffalo 50
Mar 23, 2024
Cuyahoga Falls, OH
Burning River 100 Mile Endurance Run
Jul 27, 2024
Smyrna, GA
Underground Circus 100
May 25, 2024
Goodyear, AZ
Fat Ox
Nov 22, 2024
San Francisco, CA
Ruth Anderson Memorial Endurance Run
Oct 12, 2024
Oklahoma City, OK
Turkey Trails
Nov 2, 2024
New Preston, CT
Jack Bristol Lake Waramaug Ultra Races
Apr 28, 2024
Vernal, UT
Mountain Madness
Aug 10, 2024
Clifton, VA
Bull Run Run 50 Mile
Apr 5, 2025
Boonsboro, MD
JFK 50 Mile
Nov 23, 2024
West Columbia, TX
Grit Ultra Endurance Challenge
Dec 31, 2023
Sturgeon Bay, WI
Fall 50 - Door County
Oct 26, 2024
Chicago, IL
Chicago Lakefront 50K/50M
Nov 2, 2024
Decatur, AL
Delano Park
Mar 2, 2024
Warda, TX
Wild Hare Trail Run
Nov 16, 2024
Brooklyn, NY
PPTC 50 Mile Endurance Fest
Dec 1, 2024
Loudonville, OH
Mohican 100 Mile, 50 Mile and Marathon Runs
Jun 1, 2024
Gills Rock, WI
Fall 50 - Door County
Oct 26, 2024
Wendover, UT
Salt Flats Endurance Runs
May 3, 2024
Waynesville, MO
Bad Dawg Ultra
Aug 17, 2024
Purcellville, VA
Trottin' Oxen Fat Friday Ultras
Nov 24, 2023
London, KY
Y'allhalla
Jun 8, 2024
Faust, UT
Pony Express Trail 100
Oct 18, 2024
Milton, FL
Bear Bait Ultras
Jan 13, 2024
Burns, TN
Mo' Bell
Oct 12, 2024
Waxahachie, TX
Hachie 50
Apr 20, 2024
Caseville, MI
Thumb Coast Ultra & Relay
Apr 20, 2024
Canal Fulton, OH
Get Lucky 50/50
Mar 15, 2025
Wakulla Springs, FL
Tallahassee Ultra Distance Classic
Dec 9, 2023
Kalaheo, HI
The Kauai 50
Aug 3, 2024
North Fork, MT
Le Grizz Ultramarathon & Relay
Oct 12, 2024
Edmunds, ME
Cobscook Backyard Ultra
Apr 21, 2024
Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
1. Indy Piston Endurance Run
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Past DateJun 3, 2023Saturday
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100M, 100K, 50M, 50K, 13.1M run
Virtual OptionMore Information
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Indianapolis, IN
Marion County, IN
2. Trottin' Oxen Fat Friday Ultras
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Past DateNov 24, 2023Friday
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50M, 45M run
More Information
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Purcellville, VA
Loudoun County, VA
3. Tallahassee Ultra Distance Classic
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Past DateDec 9, 2023Saturday
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50M, 50K, 26.2M run
More Information
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Boston Marathon Qualifier
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Wakulla Springs, FL
Wakulla County, FL
4. Grit Ultra Endurance Challenge
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Past DateDec 31, 2023Sunday
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100M, 100K, 50M, 50K run | last man standing | 100M, 100K, 50M, 50K relay
More Information
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West Columbia, TX
Brazoria County, TX
5. Bear Bait Ultras
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Past DateJan 13, 2024Saturday
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50M, 50K, 25K run
More Information
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Milton, FL
Santa Rosa County, FL
6. Delano Park
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Past DateMar 2, 2024Saturday
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50M run | 12H relay
More Information
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Decatur, AL
Morgan County, AL
7. Big Buffalo 50
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Past DateMar 23, 2024Saturday
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50M, 50K run | 50K relay
More Information
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Memphis, TN
Shelby County, TN
8. Hachie 50
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Past DateApr 20, 2024Saturday
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50M, 30M, 26.2M run | 50M relay | kids run
More Information
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Boston Marathon Qualifier
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Waxahachie, TX
Ellis County, TX
9. Thumb Coast Ultra & Relay
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Past DateApr 20, 2024Saturday
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50M, 50K run | 50M relay
More Information
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Caseville, MI
Huron County, MI
10. Cobscook Backyard Ultra
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Past DateApr 21, 2024Sunday
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50M, 50K run | 50M, 50K relay
More Information
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Edmunds, ME
Washington County, ME
11. Frisco Railroad Run
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Apr 27, 2024Saturday
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50M, 50K, 26.2M, 13.1M, 8K run
More Information
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Boston Marathon Qualifier
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Willard, MO
Greene County, MO
12. Jack Bristol Lake Waramaug Ultra Races
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Apr 28, 2024Sunday
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100K, 50M, 50K run
More Information
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New Preston, CT
Litchfield County, CT
13. Salt Flats Endurance Runs
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May 3, 2024Friday
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100M, 50M, 50K, 5K run
More Information
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Wendover, UT
Tooele County, UT
14. KEYS100
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May 18, 2024Saturday
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100M, 50M, 50K run | 100M relay
More Information
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Key West, FL
Monroe County, FL
15. Underground Circus 100
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May 25, 2024Saturday
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36H, 24H, 100M, 12H, 50M, 40M, 6H, 30M run
More Information
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Smyrna, GA
Cobb County, GA
16. Mohican 100 Mile, 50 Mile and Marathon Runs
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Jun 1, 2024Saturday
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100M, 50M, 26.2M run
More Information
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Loudonville, OH
Ashland County, OH
17. Bethel Hill Moonlight Boogie
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Jun 8, 2024Saturday
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50M, 26.2M run
More Information
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Boston Marathon Qualifier
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Ellerbe, NC
Richmond County, NC
18. Y'allhalla
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Jun 8, 2024Saturday
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50M, 50K run | 100M trail run
More Information
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London, KY
Laurel County, KY
19. Dawg Gone Long Run
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Jun 29, 2024Saturday
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50K run | 50M trail run
More Information
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Waynesville, OH
Warren County, OH
20. Burning River 100 Mile Endurance Run
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Jul 27, 2024Saturday
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100M, 50M run | 100M relay
More Information
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Cuyahoga Falls, OH
Summit County, OH
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.