100Ks in the USA
Nashville, IN
Dances With Dirt - Gnaw Bone, IN
May 22, 2021
Mt. Hood, OR
Wy'east Howl Trail Run
Jul 31, 2021
Glen Rose, TX
Dinosaur Valley Endurance Run
Nov 21, 2020
Florahome, FL
Iron Horse Endurance Runs
Feb 8, 2020
Fountain Hills, AZ
Javelina Jundred
Oct 30, 2021
Deerfield Beach, FL
PALM100 Ultras
Oct 26, 2019
Fayetteville, NY
Green Lakes Endurance Runs
Aug 22, 2020
West Windsor, VT
Vermont 100 Endurance Race
Jul 17, 2021
Tyler, TX
Piney Woods Ultra
Sep 18, 2021
Honolulu, HI
Hawaii Kai Ultra Run - Kalama Valley
Dec 14, 2019
Duluth, MN
Wild Duluth Races
Oct 17, 2020
Rockaway, NJ
Wildcat Ridge Romp Trail Races
Aug 14, 2021
Dubuque, IA
Mines of Spain 100
Oct 15, 2021
Silverton, CO
Silverton Ultra Dirty
Aug 6, 2021
Ardmore, OK
Lake Murray Endurance Run
Oct 23, 2021
San Jose, CA
Quicksilver Endurance Runs
May 8, 2021
Jackson, MS
Big Butts
Jul 31, 2021
Cerritos, CA
Orange Curtain Runs
Feb 27, 2021
Feb 26, 2021
McClellanville, SC
Swamp Fox Ultra
Nov 8, 2021
Nov 12, 2021
Nov 13, 2021
Spartanburg, SC
One Epic Run
Dec 7, 2019
Ocala, FL
Wild Things Races
Jan 18, 2020
Bandera, TX
Bandera Endurance Run
Jan 9, 2021
Rocky Point, NY
Tesla Hertz Run
Oct 9, 2021
Flower Mound, TX
Knob Hills Trail Race
Jan 18, 2020
Toledo, OH
Miakonda Trail Ultra
Sep 4, 2021
Lakewood, WA
Ultra Rail Seattle
Jun 19, 2020
Dec 31, 2020
Stinson Beach, CA
Miwok 100K
May 1, 2021
Stillwater, OK
Lake McMurtry Run
Apr 10, 2021
Ottawa, KS
Prairie Spirit Trail Ultra Races
Mar 27, 2021
Kansas Rails-to-Trails Extravaganza
Oct 23, 2021
Springville, UT
Kat'cina Mosa 100K Mountain Run
Aug 7, 2021
Charlottesville, VA
UROC 100K, Uber Rock 50K & Cruxy 25K
May 1, 2021
Las Cruces, NM
Fiesta Grande Ultras
Apr 27, 2019
Zombie Ultras
Nov 2, 2019
Sierra Vista Trail Runs
Feb 29, 2020
Mar 1, 2020
Fiesta Series
Aug 27, 2020
Aug 28, 2020
Aug 29, 2020
Aug 30, 2020
Ashland, OR
Siskiyou Out Back Trail Run
Jul 10, 2021
Pullman, WA
Palouse 100K
Apr 19, 2020
Norman, OK
Thunderbird Trail Run
Nov 13, 2021
Madison, WI
MadCity 100K
Sep 25, 2021
Chesapeake, VA
Tidewater Striders Dismal Swamp 100k & 50K
Dec 12, 2020
Hilo, HI
Under the Moon
Jun 26, 2021
Hot Springs, AR
Run LOViT
Feb 27, 2021
Feb 26, 2021
Bishop, CA
Bishop High Sierra Ultras
May 22, 2021
Brooksville, FL
Croom Zoom
May 22, 2021
Phoenicia, NY
Catskill Mountain 100K
Aug 9, 2020
Plain, WA
Plain Endurance Runs
Sep 18, 2021
Pinckney, MI
Run Woodstock
Sep 10, 2021
Sep 11, 2021
Sep 12, 2021
San Francisco, CA
Ruth Anderson Memorial Endurance Run
Oct 9, 2021
Cross River, NY
Raven Rocks Run
Nov 7, 2021
San Angelo, TX
Crazy Desert Trail Race
Mar 7, 2020
Oakridge, OR
Waldo 100K
Aug 21, 2021
New Preston, CT
Jack Bristol Lake Waramaug Ultra Races
Apr 26, 2020
La Grange, WI
Kettle Moraine 100 Endurance Runs
Jun 12, 2021
Truckee, CA
Castle Peak 100K
Aug 14, 2021
Cumberland, RI
Survival of the F.I.T.test 24 hour trail ultra
Oct 24, 2020
Salinas, CA
Ordnance 100K
Feb 1, 2020
Albion, IN
Indiana Trail 100
Oct 9, 2021
San Antonio, TX
El Taco Loco
Oct 23, 2021
Jim Thorpe, PA
Boulder Field Ultra
Sep 11, 2021
San Diego, CA
Sycamore Canyon Trail Race
Feb 29, 2020
Pensacola, FL
Wildcat Ultras
Sep 4, 2021
Triangle, VA
Devil Dog Ultras
Dec 7, 2019
Seeley Lake, MT
Montana 100K
Jun 12, 2021
Millburn, NJ
Mayapple Trail Run
May 16, 2020
Fincastle, VA
Hellgate 100K
Dec 14, 2019
Everett, WA
Ultra Rail Seattle
Jun 19, 2020
Dec 31, 2020
Trabuco Canyon, CA
Baldy Marathons
May 9, 2020
Titusville, PA
Oil Creek 100 Trail Runs
Oct 10, 2020
Tahlequah, OK
Pumpkin Holler Hunnerd
Oct 16, 2021
Pine, AZ
Zane Grey 100K
Apr 24, 2021
Beaver, UT
Tushars Mountain Runs
Jul 31, 2021
Rocksprings, TX
J & J Race and Trail Running Reunion
Mar 12, 2021
Harrison, TN
Run Amok
Nov 14, 2020
Palmer Lake, CO
Kickers Endurance Run
Jul 17, 2021
Port Allen, LA
Children of the Cane
Nov 14, 2020
Burns, TN
Mo' Bell
Oct 10, 2020
Oct 11, 2020
Needville, TX
Brazos Bend 50
Apr 3, 2021
Paris, TX
Paris Pair
Sep 25, 2021
Sep 24, 2021
Wellsboro, PA
Pine Creek Challenge
Sep 11, 2021
Farmville, VA
Freight Train 50K/100K
Dec 14, 2019
Cascade Locks, OR
Gorge Waterfalls 100K
Apr 11, 2020 - Hoping for 2021
Corolla, NC
Blackbeard's Revenge 100
Mar 27, 2021
North Bonneville, WA
Strawberry Fields Forever
Jun 26, 2021
Belleville, WI
Badger Trail Races
Jul 31, 2021
Aug 1, 2021
Meriden, KS
Free State Trail Run
Apr 17, 2021
Gold Beach, OR
Secret Beach 100K/50M
Oct 3, 2020
Blairstown, NJ
NJ Ultra Festival
Mar 27, 2021
High Ridge, MO
Shippey Endurance Runs
Jan 9, 2021
Jan 10, 2021
Elizabethtown, NC
Mission 100K
Mar 19, 2021
Mar 20, 2021
Mayer, AZ
Black Canyon Ultras
Feb 13, 2021
Waimea, HI
Under the Moon
Jun 26, 2021
Canal Fulton, OH
Eagle Up Ultra
Jun 5, 2021
Carthage, MO
36 Hours Of Jack
Dec 7, 2019
Norton, VA
Cloudsplitter 100
Oct 16, 2021
Cat Spring, TX
Habanero Hundred
Aug 14, 2021
Booneville, IA
Booneville Backroads Ultra
Sep 4, 2021
Pinson, TN
Dream Chaser
Oct 5, 2019
Butte Meadows, CA
Loco Go Big or Go Home Challenge
Jun 5, 2021
Naples, NY
Twisted Branch Trail Run
Aug 21, 2021
Port Gamble, WA
Lumberjack Endurance Runs
Jun 13, 2020
Oct 17, 2020
Littlefield, AZ
Grandmaster Ultras
Feb 5, 2021
Forksville, PA
Worlds End Ultramarathon
Jun 5, 2021
Bend, TX
Tinajas Ultra
Dec 5, 2020
Fort Pierce, FL
Saint Lucie Skeeter Skoot
Dec 11, 2021
Quitaque, TX
Wild Canyon Ultra
Apr 17, 2021
Forest City, IL
Temptation 200 Ultras
Sep 5, 2020
Chesterfield, MA
Chesterfield Gorge Ultra and 25K Race
May 30, 2020
May 31, 2020
Wallingford, KY
Hot Hot Hundred Trail Races
Aug 8, 2020
Gould, CO
Never Summer 100K
Jul 31, 2021
North Bend, PA
Black Forest Ultra 100K
Oct 3, 2021
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City Location
1. Fiesta Grande Ultras
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Past DateApr 27, 2019Saturday
-
24H, 100M, 100K, 50M run
More Information
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Las Cruces, NM
Dona Ana County, NM
2. Dream Chaser
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Past DateOct 5, 2019Saturday
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100M, 100K, 50M, 50K, 26.2M, 13.1M, 10K, 5K, 1M run
More Information
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Pinson, TN
Madison County, TN
3. PALM100 Ultras
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CancelledOct 26, 2019Saturday
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100K, 50M, 50K, 32K run | 100K, 50K relay
Race Website
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Deerfield Beach, FL
Broward County, FL
4. Zombie Ultras
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Past DateNov 2, 2019Saturday
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24H, 100M, 100K, 50M run
More Information
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Las Cruces, NM
Dona Ana County, NM
5. 36 Hours Of Jack
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Past DateDec 7, 2019Saturday
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200K, 100M, 100K, 80K, 50K, 30K, 15K, 5K run
More Information
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Carthage, MO
Jasper County, MO
6. Devil Dog Ultras
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Past DateDec 7, 2019Saturday
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100M, 100K trail run
Race Website
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Triangle, VA
Prince William County, VA
7. One Epic Run
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CancelledDec 7, 2019Saturday
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24H, 100K, 50K, 26.2M, 13.1M, 5K run
Race Information
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Spartanburg, SC
Spartanburg County, SC
8. Freight Train 50K/100K
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Past DateDec 14, 2019Saturday
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100K, 50K trail run
More Information
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Farmville, VA
Prince Edward County, VA
9. Hawaii Kai Ultra Run - Kalama Valley
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Past DateDec 14, 2019Saturday
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24H, 100M, 100K, 50M, 50K, 26.2M, 13.1M run
Race Link
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Honolulu, HI
Honolulu County, HI
10. Hellgate 100K
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Past DateDec 14, 2019Saturday
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100K run
Race Link
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Fincastle, VA
Botetourt County, VA
11. Knob Hills Trail Race
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Past DateJan 18, 2020Saturday
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100K, 50K, 25K, 10K trail run | relay
More Information
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Flower Mound, TX
Denton County, TX
12. Wild Things Races
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Past DateJan 18, 2020Saturday
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100K, 50M, 50K, 26.2M, 26.2K, 13.1M, 10K, 5K run
More Information
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Ocala, FL
Marion County, FL
13. Ordnance 100K
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Past DateFeb 1, 2020Saturday
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100K trail run
More Information
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Salinas, CA
Monterey County, CA
14. Iron Horse Endurance Runs
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Past DateFeb 8, 2020Saturday
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100M, 100K, 50M trail run
More Information
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Florahome, FL
Putnam County, FL
15. Sierra Vista Trail Runs
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Past DateFeb 29, 2020Saturday
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100K, 50K, 13.1M trail run | 100K relay
More Information
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Las Cruces, NM
Dona Ana County, NM
16. Sycamore Canyon Trail Race
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Past DateFeb 29, 2020Saturday
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100K, 50K, 13.1M trail run | 100K relay
More Information
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San Diego, CA
San Diego County, CA
17. Crazy Desert Trail Race
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On-Site RaceCancelledMar 7, 2020SaturdayVirtual Option
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100K, 50K, 13.1M, 10K, 5K trail run
More Information
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San Angelo, TX
Tom Green County, TX
18. Homer Epic
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TBD????taking a year off
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150K, 100K, 50K trail run
More Information
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Homer, AK
Kenai Peninsula Borough County, AK
19. Gorge Waterfalls 100K
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TBD????Hoping for 2021
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100K trail run
More Information
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Cascade Locks, OR
Hood River County, OR
20. Palouse 100K
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On-Site RaceCancelledApr 19, 2020SundayVirtual Option
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100K trail run | 100K relay
More Information
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Pullman, WA
Whitman County, WA
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.