August Ultras in the USA
Marquette, MI
Marquette Trail 50
Aug 18, 2018
Enumclaw, WA
Ragnar Trail Rainier
Aug 24, 2018
Windsor, VT
Ragnar Trail Vermont
Aug 3, 2018
Portland, OR
Hood To Coast Relay
Aug 23, 2019
Damascus, VA
Iron Mountain 50, 30, 16 Mile Trail Run
Aug 31, 2019
Pittsfield, MA
Sweltering Summer Ultra
Aug 10, 2019
Montana City, MT
HURL Elkhorn 50M/50K Ultramarathons, 23K Trail Run
Aug 4, 2018
Chillicothe, OH
Green Corn Moon ROGAINE
Aug 4, 2018
North Easton, MA
East End Trail Races
Aug 5, 2018
Big Bear Lake, CA
Kodiak Ultra Marathon
Aug 17, 2018
Anchorage, AK
Anchorage RunFest
Aug 18, 2019
Easton, WA
Cascade Crest Classic 100 Miler
Aug 25, 2018
Fayetteville, NY
Green Lakes Endurance Runs
Aug 25, 2018
Winona, MN
Ragnar Relay Great River
Aug 17, 2018
Bend, OR
Cascade Lakes Relay
Aug 3, 2018
Bristol, RI
Anchor Down Ultra
Aug 17, 2018
Rockaway, NJ
Wildcat Ridge Romp Trail Races
Aug 11, 2018
Silverton, CO
Silverton Ultra Marathon
Aug 10, 2019
San Jose, CA
Almaden Hills Trail Run
Aug 24, 2019
Brevard, NC
Pisgah 10 Hour Adventure Race
Aug 25, 2018
Issaquah, WA
Tiger Mountain Trail Run
Aug 11, 2018
Calabasas, CA
Bulldog Trail Runs
Aug 24, 2019
Steamboat Springs, CO
Ski Haus Continental Divide Trail Run
Aug 25, 2018
Springville, UT
Kat'cina Mosa 100K Mountain Run
Aug 4, 2018
Buena Vista, CO
TransRockies Run
Aug 13, 2019
Milwaukee, WI
Six Days in the Dome - 48H & 24H
Aug 23, 2019
Six Days in the Dome - 24HR
Aug 24, 2019
Six Days in the Dome - 6 Day Race
Aug 24, 2019
Phoenixville, PA
Phoenixville XC: Miles for Cancer 6-Hour Relay & Ultra
Aug 10, 2018
Woodside, CA
Crystal Springs
Aug 5, 2018
Wilmington, NY
Peak to Brew Relay
Aug 10, 2018
Sherwood, WI
High Cliff Ultra
Aug 4, 2018
Muir Beach, CA
Tamalpa Headlands 50K
Aug 25, 2018
Louisville, KY
Dream Factory 24--Hour Run for Dreams
Aug 4, 2018
Phoenicia, NY
Catskill Mountain 100K
Aug 12, 2018
Columbus, OH
C2C Relay Run
Aug 24, 2018
Santa Fe, NM
Endurance Santa Fe Mountain Races
Aug 31, 2019
San Francisco, CA
The Ridge
Aug 4, 2018
Wrightwood, CA
Angeles Crest 100 Mile Endurance Run
Aug 3, 2019
Corvallis, OR
TriUmph Iron Relay
Aug 24, 2018
Oakridge, OR
Where's Waldo 100K Ultramarathon
Aug 18, 2018
Truckee, CA
Castle Peak 100K
Aug 18, 2018
Pollock Pines, CA
Trail Run at Sly Park
Aug 17, 2019
Brookville, PA
Baker Trail UltraChallenge
Aug 24, 2019
Clayton, CA
Diablo
Aug 26, 2018
Washington, CT
NYARA Trail Series - Steep Rock
Aug 4, 2018
San Antonio, TX
I Ran Marathons - Majestic August - Star
Aug 3, 2019
Rapid City, SD
StoneMan Marathon & Hisega Half
Aug 4, 2018
Carson City, NV
Marlette 50K
Aug 11, 2019
Waddell, AZ
Vertigo Night Runs
Aug 25, 2018
Juneau, AK
Nifty 50
Aug 11, 2018
Copper Mountain, CO
Ragnar Relay Colorado
Aug 10, 2018
Danville, IL
Howl at the Moon 8 Hour Run
Aug 11, 2018
Leadville, CO
Leadville Trail 100 Mile Run
Aug 17, 2019
Oakland, CA
Cinderella
Aug 11, 2018
Castro Valley, CA
Skyline 50K
Aug 5, 2018
Fairplay, CO
Sheep Mountain 50 Mile
Aug 3, 2019
King George, VA
Dahlgren Heritage Rail Trail 50K
Aug 4, 2018
Elizabethtown, KY
Backyard Classic
Aug 18, 2018
Morehead, KY
Hot Hot Hundred
Aug 11, 2018
Salida, CO
High Lonesome 100
Aug 3, 2018
Bruceton Mills, WV
Ragnar Trail Relay - Appalachians
Aug 10, 2018
Manchester, TN
A Race for the Ages
Aug 30, 2018
Burns, TN
Mo' Bell
Aug 3, 2019
Wellston, MI
North Country Trail Run
Aug 25, 2018
La Grande, OR
Elkhorn Relay
Aug 10, 2018
Watsonville, CA
Mount Madonna Trail Run
Aug 18, 2018
Panaca, NV
Lincoln County Adventure Relay
Aug 11, 2018
Comstock Park, MI
Fred Running Relays
Aug 10, 2018
Mulberry, FL
Anti-Hero Series F. Castle Trail Race
Aug 4, 2018
Lamoille, NV
Ruby Mountain Relay
Aug 16, 2019
Amboy, WA
Bigfoot 200
Aug 9, 2019
Hooper, NE
Logan View Raider Run
Aug 18, 2018
Richfield, UT
Fish Lake Relay
Aug 25, 2018
Danbury, NH
Ragged 75 Stage Race and 50K
Aug 10, 2018
Custer, SD
Lean Horse 100 - Friday Events
Aug 17, 2018
Lean Horse 100 - Saturday Events
Aug 18, 2018
Medora, ND
Badlands
Aug 11, 2018
Jamestown, TN
Cumberland Plateau Stage Race
Aug 24, 2018
Foresthill, CA
Robinson Flat Trail Race
Aug 18, 2018
Cat Spring, TX
Habanero Hundred
Aug 18, 2018
Mt. St. Helens, WA
Volcanic 50
Aug 3, 2019
Ida Grove, IA
Trail of the Dragon 50K/50M
Aug 11, 2018
Naples, NY
Twisted Branch Trail Run
Aug 17, 2019
Soda Springs, CA
Sierra Crest 50K
Aug 4, 2018
Navajo, NM
12 Hours of Asaayi
Aug 18, 2018
Waterville, PA
Eastern States 100
Aug 10, 2019
Fort Collins, CO
Wild West Relay
Aug 3, 2018
Gleason, WI
Underdown Trail Race - 50K/50M
Aug 24, 2019
Dorset, VT
Lost Cat 50K
Aug 25, 2018
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| Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
City Location
1. Angeles Crest 100 Mile Endurance Run
-
Aug 3, 2019Saturday
-
100M trail run
Race Link
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Wrightwood, CA
San Bernardino County, CA
2. Capt'n Karl's Trail Series - Colorado Bend
-
Aug 3, 2019Saturday
-
60K, 30K, 10K trail run
Race Link
-
Lampasas, TX
Lampasas County, TX
3. Cascade Lakes Relay
-
Past DateAug 3, 2018Friday
-
216M, 132M relay
Race Link
-
Bend, OR
Deschutes County, OR
4. High Lonesome 100
-
Past DateAug 3, 2018Friday
-
100M trail run
Race Link
-
Salida, CO
Chaffee County, CO
5. I Ran Marathons - Majestic August - Star
-
Aug 3, 2019Saturday
-
50K, 26.2M, 13.1M, 10K, 5K run
Race Link
-
San Antonio, TX
Bexar County, TX
6. Kirkwood's Thunder Mountain Trail Challenge
-
Aug 3, 2019Saturday
-
50K, 26.2M, 18.8M, 13.1M, 10K, 5K trail run
Race Link
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Kirkwood, CA
El Dorado County, CA
7. Mo' Bell
-
Aug 3, 2019Saturday
-
100M, 100K, 50M, 50K, 26.2M, 13.1M, 10K, 5K, 1M run | 12H relay
Race Link
-
Burns, TN
Dickson County, TN
8. Ragnar Trail Vermont
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Past DateAug 3, 2018Friday
-
125M relay
Race Link
-
Windsor, VT
Windsor County, VT
9. Sheep Mountain 50 Mile
-
Aug 3, 2019Saturday
-
50M trail run
Race Link
-
Fairplay, CO
Park County, CO
10. Volcanic 50
-
Aug 3, 2019Saturday
-
50K trail run
Race Link
-
Mt. St. Helens, WA
Skamania County, WA
11. Wild West Relay
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Past DateAug 3, 2018Friday
-
200M relay
Race Link
-
Fort Collins, CO
Larimer County, CO
12. Anti-Hero Series F. Castle Trail Race
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Past DateAug 4, 2018Saturday
-
6H, 13.1M, 5K trail run
Race Link
-
Mulberry, FL
Polk County, FL
13. Dahlgren Heritage Rail Trail 50K
-
Past DateAug 4, 2018Saturday
-
50K trail run
Race Link
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King George, VA
King George County, VA
14. Dream Factory 24--Hour Run for Dreams
-
Past DateAug 4, 2018Saturday
-
24H, 12H run | kids run
Race Link
-
Louisville, KY
Jefferson County, KY
15. Green Corn Moon ROGAINE
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Past DateAug 4, 2018Saturday
-
6H run
Race Link
-
Chillicothe, OH
Ross County, OH
16. High Cliff Ultra
-
Past DateAug 4, 2018Saturday
-
50K, 25K trail run
Race Link
-
Sherwood, WI
Calumet County, WI
17. HURL Elkhorn 50M/50K Ultramarathons, 23K Trail Run
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Past DateAug 4, 2018Saturday
-
50M, 50K, 23K trail run
Race Link
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Montana City, MT
Jefferson County, MT
18. Kanawha Trace Trail Runs
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Past DateAug 4, 2018Saturday
-
50K, 25K, 10K trail run
Race Link
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Ona, WV
Cabell County, WV
19. Kat'cina Mosa 100K Mountain Run
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Past DateAug 4, 2018Saturday
-
100K trail run
Race Link
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Springville, UT
Utah County, UT
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.