August Ultras in the USA
Liberty, UT
Skyline Mountain Marathon
Aug 14, 2021
Marquette, MI
Marquette Trail 50
Aug 21, 2021
Aug 20, 2021
Enumclaw, WA
Ragnar Trail Rainier
Aug 27, 2021
Ft. Worth, TX
WRATH Texas Endurance Runs
Aug 6, 2021
Aug 7, 2021
Portland, OR
Hood To Coast Relay
Aug 27, 2021
St. Paul, MN
Ragnar Relay Great River
Aug 20, 2021
Kennesaw, GA
Maria's Ultra Summer Spectacular
Aug 1, 2020
Pittsfield, MA
Sweltering Summer Ultra
Aug 14, 2021
Montana City, MT
HURL Elkhorn Endurance Runs
Aug 7, 2021
North Easton, MA
East End Trail Races
Aug 2, 2020
Philipsburg, PA
Allegheny Front Trail Run
Aug 7, 2021
Richmond, VA
Autism Society Central Virginia 5K
Aug 1, 2020
Belmont, NC
Rocky Branch Ultra
Aug 14, 2021
Big Bear Lake, CA
Kodiak Ultra Marathons
Aug 20, 2021
Aug 21, 2021
Bainbridge Island, WA
Bainbridge Island Relay
Aug 15, 2020
Anchorage, AK
Anchorage RunFest
Aug 22, 2021
Aug 21, 2021
Bellingham, WA
Hamster Endurance Runs
Aug 14, 2021
Easton, WA
Cascade Crest 100 Miler
Aug 28, 2021
Fayetteville, NY
Green Lakes Endurance Runs
Aug 22, 2020
New Brunswick, NJ
Towpath 'Train'ing Run
Aug 21, 2021
Bristol, RI
Anchor Down Ultra
Aug 13, 2021
Duluth, MN
Ragnar Relay Great River
Aug 20, 2021
Rockaway, NJ
Wildcat Ridge Romp Trail Races
Aug 14, 2021
Cedar Hill, TX
Blazin' Summer Sufferfest
Aug 7, 2021
Fairmont, WV
Wild Turkey Fat Ass 50K 25K
Aug 28, 2021
Silverton, CO
Silverton Ultra Dirty
Aug 6, 2021
Monterey, CA
Golden State
Aug 21, 2021
Lebanon, NH
100 on100 Relay
Aug 14, 2021
Powell, OH
Nocterra Quitter's Run
Aug 8, 2021
Lake Tahoe, NV
Marlette 50K
Aug 15, 2021
Canton, GA
Burn Your Half Off Georgia
Aug 22, 2020
Middletown, OH
Steel City 12 Hour Endurance Run
Aug 21, 2021
Flower Mound, TX
Knob Hills Trail Race
Aug 28, 2021
Minneapolis, MN
FANS Ultra Races
Aug 28, 2021
Stinson Beach, CA
Coastal 50K/Marathon
Aug 8, 2020
Steamboat Springs, CO
Wild West Relay
Aug 6, 2021
Continental Divide Trail Run
Aug 21, 2021
Buena Vista, CO
TransRockies Run
Aug 2, 2021
Rodeo Beach, CA
Headlands Hundred
Aug 19, 2021
Salem, OR
Angry Owl Ultramarathons
Aug 14, 2021
Lincoln, RI
RiMaConn Relay
Aug 28, 2021
Phoenixville, PA
Phoenixville XC: Miles for Cancer 6-Hour Relay & Ultra
Aug 14, 2021
Wilmington, NY
Peak to Brew Relay
Aug 13, 2021
Aug 14, 2021
Pennsauken, NJ
Loopy Looper 12 Hour
Aug 7, 2021
Sherwood, WI
High Cliff Ultra
Aug 7, 2021
Manistee, MI
North Country Trail Run
Aug 28, 2021
Aug 29, 2021
Louisville, KY
Run for Dreams
Aug 7, 2021
Plymouth, WI
12 Hours of Road America
Aug 14, 2021
Spokane, WA
Spokane To Sandpoint Relay
Aug 20, 2021
Phoenicia, NY
Catskill Mountain 100K
Aug 9, 2020
Berea, KY
Bluegrass Reaper Challenge
Aug 7, 2021
San Francisco, CA
6-Hour Distance Classic
Aug 30, 2020
Wrightwood, CA
Angeles Crest 100 Mile Endurance Run
Aug 6, 2022
Oakridge, OR
Waldo 100K
Aug 21, 2021
Truckee, CA
Castle Peak 100K
Aug 14, 2021
Vernal, UT
Ashley 50 Ultra and Relay
Aug 14, 2021
Pollock Pines, CA
Trail Run at Sly Park
Aug 21, 2021
Brookville, PA
Baker Trail UltraChallenge
Aug 28, 2021
Clayton, CA
Diablo Trail Run
Aug 22, 2021
Salinas, CA
Monterey Spartan Trail
Aug 22, 2021
Edwardsville, IL
Watershed Endurance 6H 3H Runs
Aug 7, 2021
Waddell, AZ
Vertigo Night Runs
Aug 14, 2021
Juneau, AK
Nifty Fifty
Aug 14, 2021
Copper Mountain, CO
Ragnar Relay Colorado
Aug 15, 2020
Danville, IL
Howl at the Moon 8 Hour Run
Aug 14, 2021
Leadville, CO
Leadville Trail 100 Mile Run
Aug 21, 2021
Oakland, CA
Redwood Trail Run (Summer)
Aug 7, 2021
Castro Valley, CA
Skyline 50K
Aug 1, 2021
Morgantown, WV
Coopers Rock 50K
Aug 21, 2021
Fairplay, CO
Sheep Mountain Ultras
Aug 7, 2021
Yellow Springs, OH
Tie Dye 50K
Aug 21, 2021
King George, VA
Dahlgren Heritage Rail Trail 50K
Aug 1, 2020
Elizabethtown, KY
Backyard Classic
Aug 15, 2020
Volcano, HI
Time for Wine
Aug 21, 2021
Alta, WY
Ragnar Trail Tetons
Aug 20, 2021
Bruceton Mills, WV
Ragnar Trail Relay - Appalachians
Aug 13, 2021
Brandon, MS
Death By 5K
Aug 28, 2021
Hood River, OR
Post Canyon 50K
Aug 21, 2021
Buckeye, AZ
Hotfoot Hamster
Aug 28, 2021
Circleville, OH
One Hot Momma
Aug 10, 2019
Medfield, MA
TARC Summer Classic
Aug 8, 2020
Palmer Lake, CO
24 Hours of Palmer Lake
Aug 27, 2021
Aug 28, 2021
Sandpoint, ID
Spokane To Sandpoint Relay
Aug 20, 2021
Woonsocket, RI
Harbor Seal Marathon
Aug 1, 2020
La Grande, OR
Elkhorn Relay
Aug 14, 2021
Watsonville, CA
Mount Madonna Trail Run
Aug 17, 2019
St. Francisville, LA
Beast For A Day
Aug 28, 2021
Glendale, KY
Fairgrounds 8H Ultra
Aug 21, 2021
Belleville, WI
Badger Trail Races
Jul 31, 2021
Aug 1, 2021
Roseburg, OR
NUT Trail Races
Aug 28, 2021
Belmont, MI
Fred Running Relays
Aug 6, 2021
Aug 7, 2021
Richfield, UT
Fish Lake Relay
Aug 21, 2021
Danbury, NH
Ragged 75 Stage Race and 50K
Aug 6, 2021
Larkspur, CO
Lincoln Mountain Endurance Run
Aug 28, 2021
Custer, SD
Lean Horse
Aug 14, 2021
Aug 15, 2021
Island Park, ID
Harriman Park 25K/50K
Aug 21, 2021
Medora, ND
Badlands
Aug 14, 2021
Cloudcroft, NM
Cloudcroft Ultra Trail Race
Aug 21, 2021
Jamestown, TN
Cumberland Plateau Stage Race
Aug 21, 2020
Cat Spring, TX
Habanero Hundred
Aug 14, 2021
Mt. St. Helens, WA
Volcanic 50
Aug 7, 2021
Bigfoot 200
Aug 13, 2021
Ida Grove, IA
Trail of the Dragon 50K/50M
Aug 14, 2021
Naples, NY
Twisted Branch Trail Run
Aug 21, 2021
Mendocino, CA
Mendocino Running Festival
Aug 28, 2021
Navajo, NM
12 Hours of Asaayi
Aug 15, 2020
Marysville, MT
Great Divide Trail Race
Aug 21, 2021
Fort Wayne, IN
Fort4Fitness Summer Sunset Relay
Aug 7, 2021
Mill Spring, NC
Asheville Spartan Trail
Aug 1, 2021
Cassadaga, NY
Frickin Hot 50K
Aug 7, 2021
Waterville, PA
Eastern States 100
Aug 14, 2021
Fort Collins, CO
Wild West Relay
Aug 6, 2021
Gleason, WI
Underdown Trail Races
Aug 21, 2021
Dorset, VT
Lost Cat 50K
Aug 22, 2020
Loma Mar, CA
The Groves
Aug 8, 2020
Newmanstown, PA
RunPA Trail Jamboree
Aug 7, 2021
Aug 8, 2021
Smicksburg, PA
Baker Trail UltraChallenge
Aug 28, 2021
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| Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
City Location
1. Asheville Spartan Trail
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Aug 1, 2021Sunday
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50K, 13.1M, 10K trail run
More Information
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Mill Spring, NC
Polk County, NC
2. Autism Society Central Virginia 5K
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CancelledAug 1, 2020Saturday
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162M, 108M, 54M run
More Information
- Richmond, VA
3. Badger Trail Races
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Aug 1, 2021Sunday
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50M, 50K, 26.2M, 13.1M trail run
More Information
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Belleville, WI
Dane County, WI
4. Dahlgren Heritage Rail Trail 50K
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Past DateAug 1, 2020Saturday
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50K trail run
More Information
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King George, VA
King George County, VA
5. Harbor Seal Marathon
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CancelledAug 1, 2020Saturday
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50K, 26.2M, 13.1M, 10K, 5K run
More Information
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Woonsocket, RI
Providence County, RI
6. Maria's Ultra Summer Spectacular
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Past DateAug 1, 2020Saturday
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26.6M run
More Information
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Kennesaw, GA
Cobb County, GA
7. Skyline 50K
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Aug 1, 2021Sunday
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50K, 13.1M run
More Information
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Castro Valley, CA
Alameda County, CA
8. East End Trail Races
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Past DateAug 2, 2020Sunday
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50K, 30K, 10K trail run
More Information
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North Easton, MA
Bristol County, MA
9. TransRockies Run
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Aug 2, 2021Monday
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120M trail run
More Information
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Buena Vista, CO
Chaffee County, CO
10. Angeles Crest 100 Mile Endurance Run
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Aug 6, 2022Saturday
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100M trail run
More Information
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Wrightwood, CA
San Bernardino County, CA
11. Fred Running Relays
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Aug 6, 2021Friday
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200M, 100M relay
More Information
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Belmont, MI
Kent County, MI
12. Ragged 75 Stage Race and 50K
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Aug 6, 2021Friday
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75M, 50K trail run
More Information
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Danbury, NH
Merrimack County, NH
13. Silverton Ultra Dirty
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Aug 6, 2021Friday
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100M, 100K, 60K trail run
More Information
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Silverton, CO
San Juan County, CO
14. Wild West Relay
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Aug 6, 2021Friday
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200M relay
More Information
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startFort Collins, COfinishSteamboat Springs, CORoutt County, COLarimer County, CO
15. WRATH Texas Endurance Runs
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Aug 6, 2021Friday
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48H, 24H run
More Information
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Ft. Worth, TX
Tarrant County, TX
16. Blazin' Summer Sufferfest
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Aug 7, 2021Saturday
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54K, 36K, 18K, 10K, 5K trail run
More Information
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Cedar Hill, TX
Dallas County, TX
17. Allegheny Front Trail Run
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Aug 7, 2021Saturday
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50K, 14M trail run
More Information
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Philipsburg, PA
Centre County, PA
18. Bluegrass Reaper Challenge
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Aug 7, 2021Saturday
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50K, 26.2M, 13.1M, 10K, 2.6M run | last man standing | 26.2M relay
More Information
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Berea, KY
Madison County, KY
19. Capt'n Karl's Trail Series - Muleshoe Bend
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Aug 7, 2021Saturday
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60K, 30K, 20K, 10K, 5K trail run
More Information
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Spicewood, TX
Burnet County, TX
20. Fort4Fitness Summer Sunset Relay
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Aug 7, 2021Saturday
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6H, 3H run | 6H, 3H relay
More Information
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Fort Wayne, IN
Allen County, IN
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.