August Ultras in the USA
Liberty, UT
Skyline Mountain Marathon
Aug 12, 2023
Marquette, MI
Marquette Trail 50
Aug 17, 2024
Aug 16, 2024
Enumclaw, WA
Ragnar Trail Rainier
Aug 23, 2024
Sausalito, CA
Rodeo Valley Trail Run
Aug 3, 2024
Headlands 50M Endurance Run
Aug 10, 2024
Rodeo Beach Trail Run
Aug 10, 2024
Middleton, WI
Run the Hawk Trail Runs
Aug 24, 2024
Portland, OR
Hood To Coast Relay
Aug 23, 2024
Mount Hood, OR
Hood Hundred
Aug 3, 2024
Fairbanks, AK
Drew's Angel Creek 50
Aug 3, 2024
Saint Paul, MN
Ragnar Road Minnesota
Aug 9, 2024
Damascus, VA
Iron Mountain 50, 30, 16 Mile Trail Run
Aug 31, 2024
Pittsfield, MA
Sweltering Summer Ultra
Aug 10, 2024
Montana City, MT
HURL Elkhorn Endurance Runs
Aug 3, 2024
Utica, NY
Peak to Brew Relay
Aug 10, 2024
Anchorage, AK
Anchorage RunFest
Aug 18, 2024
Aug 17, 2024
Bellingham, WA
Hamster Endurance Runs
Aug 3, 2024
Larrabee Lakes
Aug 10, 2024
Fayetteville, NY
Green Lakes Endurance Runs
Aug 24, 2024
Voorheesville, NY
Thacher Park Trail Running Festival
Aug 25, 2024
Bristol, RI
Anchor Down Ultra
Aug 9, 2024
East Lansing, MI
Run the Bunyan Relay
Aug 10, 2024
Lincoln, NE
Gravel Worlds Land Ho Run
Aug 23, 2024
Cedar Hill, TX
Blazin' Summer Sufferfest
Aug 3, 2024
Crested Butte, CO
Grand Traverse Mountain Run
Aug 31, 2024
Newport, OR
Tufted Puffin Endurance Run
Aug 3, 2024
Fairmont, WV
Wild Turkey 50K 25K and 8 Miler
Aug 17, 2024
San Jose, CA
Almaden Hills Trail Run
Aug 17, 2024
Englewood, OH
Another Dam 50K
Aug 18, 2024
Powell, OH
Nocterra Quitter's Run
Aug 11, 2024
Harrisburg, PA
Ragnar Road Pennsylvania
Aug 23, 2024
Lake Tahoe, NV
Marlette 50K
Aug 11, 2024
Southern Pines, NC
Weymouth Woods 25K 50K Trail Run
Aug 31, 2024
Philadelphia, PA
Ragnar Road Pennsylvania
Aug 23, 2024
Middletown, OH
Steel City 12 Hour Run/Ruck
Aug 17, 2024
Bethel, OH
East Fork 100M/100K
Aug 24, 2024
Stowe, VT
100 on100 Relay
Aug 10, 2024
Calabasas, CA
Bulldog Trail Runs
Aug 17, 2024
Vonore, TN
Fort Frenzy Ultra Festival
Aug 12, 2023
Steamboat Springs, CO
Wild West Relay
Aug 2, 2024
Continental Divide Trail Run
Aug 24, 2024
Springville, UT
Kat'cina Mosa 100K Mountain Run
Aug 3, 2024
Buena Vista, CO
TransRockies Run
Aug 12, 2024
Salem, OR
Angry Owl Ultramarathons
Aug 10, 2024
Lincoln, RI
RiMaConn Relay
Aug 26, 2023
Phoenixville, PA
Phoenixville XC: Miles for Cancer 6-Hour Relay & Ultra
Aug 12, 2023
New London, WI
Mosquito Hill Endurance Run
Aug 17, 2024
Pennsauken, NJ
Loopy Looper
Aug 3, 2024
Muir Beach, CA
Tamalpa Headlands 50K
Aug 17, 2024
Cleburne, TX
Six-O Trail Run
Aug 31, 2024
Manistee, MI
North Country Trail Run
Aug 24, 2024
Aug 25, 2024
Delafield, WI
Badgerland Striders 24-12-6 Hour Runs
Aug 31, 2024
Berea, KY
Bluegrass Reaper Challenge
Aug 3, 2024
Kirkwood, CA
Kirkwood's Ultras
Aug 3, 2024
Jackson, MI
Pines To Vines 55K
Aug 11, 2024
Lakewood, OH
Hell on Hogsback: Endurance Challenge
Aug 24, 2024
Wrightwood, CA
Angeles Crest 100 Mile Endurance Run
Aug 3, 2024
Bountiful, UT
Elephant Rock Trail Run
Aug 10, 2024
Oakridge, OR
Waldo 100K
Aug 3, 2024
Oregon 200
Aug 23, 2024
Vernal, UT
Mountain Madness
Aug 10, 2024
Pollock Pines, CA
Trail Run at Sly Park Lake
Aug 24, 2024
Aug 25, 2024
Morris, IL
Anybody 5K
Aug 16, 2024
Aug 17, 2024
West Yellowstone, MT
Yellowstone Trail Race
Aug 3, 2024
Aug 4, 2023
Edwardsville, IL
Watershed Endurance 6H 3H Runs
Aug 10, 2024
Billings, MT
REVENANT
Aug 12, 2023
Pensacola, FL
Wildcat Ultras
Aug 31, 2024
Aurora, IL
Dog Days of Summer
Aug 10, 2024
Waddell, AZ
Vertigo Night Runs
Aug 10, 2024
Juneau, AK
Nifty Fifty
Aug 10, 2024
Ann Arbor, MI
Run the Bunyan Relay
Aug 10, 2024
Greenville, SC
A Day at The Park
Aug 31, 2024
Danville, IL
Howl at the Moon 8 Hour Run
Aug 10, 2024
Leadville, CO
Leadville Trail 100 Mile Run
Aug 17, 2024
Oakland, CA
Redwood (Summer) Trail Run
Aug 10, 2024
Castro Valley, CA
Skyline 50K
Aug 4, 2024
Merrill, WI
Underdown Trail Races
Aug 17, 2024
Fairplay, CO
Sheep Mountain Trail Runs
Aug 3, 2024
Wendover, UT
Dusk to Dawn Relay Race
Aug 30, 2024
King George, VA
Dahlgren Heritage Rail Trail 50K
Aug 3, 2024
Waynesville, MO
Bad Dawg Ultra
Aug 17, 2024
Harpers Ferry, WV
Miner's Lady 8 Hour Endurance Race
Aug 17, 2024
Volcano, HI
Time for Wine
Aug 18, 2024
Bruceton Mills, WV
Ragnar Trail Relay - Appalachians
Aug 9, 2024
Brandon, MS
Death By 5K
Aug 31, 2024
Dover, OH
Tuscazoar Endurance Race
Aug 31, 2024
Buckeye, AZ
Jackrabbit Jubilee
Aug 24, 2024
North Creek, NY
Peak to Brew Relay
Aug 10, 2024
Rocksprings, TX
J&J Race & Trail Running Reunion
Aug 30, 2025
Manchester, TN
A Race for the Ages
Aug 29, 2024
Ludlow, VT
100 on100 Relay
Aug 10, 2024
Windham, ME
Firebird Trail Races
Aug 24, 2024
La Grande, OR
Elkhorn Relay
Aug 10, 2024
Campbellsville, KY
The Possum Night Run
Aug 19, 2023
North Bonneville, WA
Three Corner Rock PCT 50K
Aug 31, 2024
Bolivar, OH
5 Lakes Ultra Race
Aug 5, 2023
Annandale, MN
Eddy Trail Races
Aug 10, 2024
Belleville, WI
Badger Trail Races
Aug 3, 2024
Aug 4, 2024
Creede, CO
Creede Mountain Run
Aug 31, 2024
Long Grove, IA
ScoCo50
Aug 24, 2024
Danbury, NH
Ragged 75 Stage Race and 50K
Aug 2, 2024
Custer, SD
Lean Horse
Aug 16, 2024
Aug 17, 2024
Island Park, ID
Harriman Park 25K/50K
Aug 17, 2024
Cloudcroft, NM
Cloudcroft Ultra Trail Race
Aug 17, 2024
Lennox, SD
Blood Run
Aug 31, 2024
Cat Spring, TX
Habanero Hundred
Aug 24, 2024
Cimarron, NM
Philmont Trail Race
Aug 3, 2024
Booneville, IA
Booneville Backroads Ultra
Aug 31, 2024
Mount Saint Helens, WA
Volcanic 50
Aug 3, 2024
Aug 4, 2024
Bigfoot 200
Aug 9, 2024
Ida Grove, IA
Trail of the Dragon 50K/50M
Aug 3, 2024
Naples, NY
Twisted Branch Trail Run
Aug 24, 2024
Cassadaga, NY
Frickin Hot 50K
Aug 3, 2024
Waterville, PA
Eastern States 100
Aug 10, 2024
Fort Collins, CO
Wild West Relay
Aug 2, 2024
Forest City, IL
Temptation 200 Ultras
Aug 31, 2024
Sep 1, 2024
Egremont, MA
Jug End Loop Ultra
Aug 24, 2024
Norden, CA
Ragnar Trail Tahoe
Aug 16, 2024
La Sal, UT
UTE 100
Aug 24, 2024
Orderville, UT
Zion 100-Mile Challenge
Aug 28, 2024
Newmanstown, PA
RunPA Trail Jamboree
Aug 3, 2024
Aug 4, 2024
Newhalem, WA
North Cascade Traverse
Aug 7, 2024
Aug 8, 2024
Kalaheo, HI
The Kauai 50
Aug 3, 2024
Cooke City, MT
Prospector's 50K
Aug 10, 2024
Aug 11, 2024
Summerville, PA
Baker Trail UltraChallenge
Aug 24, 2024
Hays, MT
Swift Bear Trail Run
Aug 10, 2024
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| Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
City Location
61. Divide Trail Race
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Aug 11, 2024Sunday
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50K, 25K trail run
More Information
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Butte, MT
Silver Bow County, MT
62. Marlette 50K
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Aug 11, 2024Sunday
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50K, 10M trail run
More Information
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Lake Tahoe, NV
Douglas County, NV
63. Nocterra Quitter's Run
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Aug 11, 2024Sunday
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6H, 26.2M, 13.1M, 10K, 5K run
More Information
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Powell, OH
Delaware County, OH
64. Pines To Vines 55K
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Aug 11, 2024Sunday
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55K trail run
More Information
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Jackson, MI
Jackson County, MI
65. Fort Frenzy Ultra Festival
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Past DateAug 12, 2023Saturday
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24H, 12H, 6H, 3H trail run
More Information
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Vonore, TN
Monroe County, TN
66. Phoenixville XC: Miles for Cancer 6-Hour Relay & Ultra
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Past DateAug 12, 2023Saturday
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6H run | 6H relay
More Information
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Phoenixville, PA
Chester County, PA
67. REVENANT
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Past DateAug 12, 2023Saturday
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30M run
More Information
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Billings, MT
Yellowstone County, MT
68. Skyline Mountain Marathon
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Past DateAug 12, 2023Saturday
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55K, 26.2M, 13.1M trail run
More Information
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Liberty, UT
Weber County, UT
69. TransRockies Run
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Aug 12, 2024Monday
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120M trail run
More Information
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Buena Vista, CO
Chaffee County, CO
70. Anybody 5K
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Aug 16, 2024Friday
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12H, 5K run
More Information
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Morris, IL
Grundy County, IL
71. Lean Horse
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Aug 16, 2024Friday
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100M trail run | 100M relay
More Information
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Custer, SD
Custer County, SD
72. Ragnar Trail Tahoe
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Aug 16, 2024Friday
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125M relay
More Information
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Norden, CA
Nevada County, CA
73. Almaden Hills Trail Run
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Aug 17, 2024Saturday
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50K, 26.2M, 30K, 13.1M, 8M, 10K, 5K trail run
More Information
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San Jose, CA
Santa Clara County, CA
74. Backcountry Rise Trail Run
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Aug 17, 2024Saturday
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50M, 50K, 20M trail run
More Information
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Toutle, WA
Cowlitz County, WA
75. Bad Dawg Ultra
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Aug 17, 2024Saturday
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100M, 100K, 50M, 50K, 12M run
More Information
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Waynesville, MO
Pulaski County, MO
76. Bulldog Trail Runs
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Aug 17, 2024Saturday
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50K, 25K trail run
More Information
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Calabasas, CA
Los Angeles County, CA
77. Cloudcroft Ultra Trail Race
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Aug 17, 2024Saturday
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53K, 9.5M, 4.7M trail run
More Information
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Cloudcroft, NM
Otero County, NM
78. E.T. Full Moon Midnight Marathon
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Aug 17, 2024Saturday
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51K, 26.2M, 13.1M, 10K, 5K run
More Information
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Rachel, NV
Lincoln County, NV
79. Harriman Park 25K/50K
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Aug 17, 2024Saturday
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50K, 25K trail run
More Information
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Island Park, ID
Fremont County, ID
80. Leadville Trail 100 Mile Run
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Aug 17, 2024Saturday
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100M trail run
More Information
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Leadville, CO
Lake County, CO
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.