100Ks in the USA
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Virginia Beach, VA
Virginia Beach Distance Races
Feb 18, 2018
Marquette, MI
Marquette Trail 50
Aug 18, 2018
Nashville, IN
Dances With Dirt - Gnaw Bone, IN
May 19, 2018
Dallas, TX
Big Cedar Endurance Run - 100M
Nov 3, 2018
Florahome, FL
Iron Horse Endurance Runs
Feb 9, 2019
Fountain Hills, AZ
Javelina Jundred
Oct 27, 2018
Deerfield Beach, FL
PALM100 Ultras
Oct 27, 2018
Fayetteville, NY
Green Lakes Endurance Runs
Aug 25, 2018
West Windsor, VT
Vermont 100 Endurance Run
Jul 21, 2018
Tyler, TX
Piney Woods Ultra
Sep 22, 2018
Honolulu, HI
Hawaii Kai Ultra Run - Kalama Valley
Dec 16, 2017
Duluth, MN
Wild Duluth Races
Oct 20, 2018
Rockaway, NJ
Wildcat Ridge Romp Trail Races
Aug 11, 2018
Alcoa, TN
Pistol Ultra Run
Mar 16, 2019
Crested Butte, CO
Crested Butte Ultra
Sep 15, 2018
Hinckley, OH
Buzzard Day Race
Mar 17, 2018
Silverton, CO
Silverton Ultra Marathon
Aug 11, 2018
San Jose, CA
Quicksilver 100K and 50K
May 12, 2018
Jackson, MS
Big Butts
Jul 21, 2018
Cerritos, CA
Orange Curtain 100K
Feb 23, 2019
Spartanburg, SC
One Epic Run
Dec 1, 2018
Southern Pines, NC
Weymouth Woods 100K Trail Run
Jan 19, 2019
Bandera, TX
Bandera Endurance Run
Jan 5, 2019
Rocky Point, NY
Tesla Hertz Run
Oct 6, 2018
Flower Mound, TX
Knob Hills Trail Race
Jan 19, 2019
Stinson Beach, CA
Miwok 100K
May 4, 2019
Lawrence, KS
Free State Trail Run
Apr 21, 2018
Henderson, NV
Trail Trashed
Mar 9, 2019
Springville, UT
Kat'cina Mosa 100K Mountain Run
Aug 4, 2018
Charlottesville, VA
UROC 100K, Uber Rock 50K & Cruxy 25K
May 12, 2018
Homer, AK
Homer Epic
Mar 17, 2018
Pullman, WA
Palouse 100K
Apr 15, 2018
Willoughby Hills, OH
Conquer the Castle
Nov 3, 2018
Madison, WI
MadCity 100K
Apr 7, 2018
Hot Springs, AR
Run LOViT 100K
Feb 23, 2019
Brooksville, FL
Croom Zoom
Jan 5, 2019
El Paso, TX
Lone Star 100
Feb 9, 2019
Phoenicia, NY
Catskill Mountain 100K
Aug 12, 2018
Plain, WA
Plain Endurance Runs
Sep 15, 2018
San Francisco, CA
Ruth Anderson Memorial Endurance Run
Apr 21, 2018
San Angelo, TX
Crazy Desert Trail Run
Mar 9, 2019
Oakridge, OR
Where's Waldo 100K Ultramarathon
Aug 18, 2018
Killeen, TX
Saddle Blazer Trail Marathon
Feb 24, 2018
New Preston, CT
Jack Bristol Lake Waramaug Ultra Races
Apr 29, 2018
La Grange, WI
Kettle Moraine 100 Endurance Runs
Jun 1, 2019
Truckee, CA
Castle Peak 100K
Aug 18, 2018
Salinas, CA
Ordnance 100K
Feb 3, 2018
Jim Thorpe, PA
Boulder Field 100
Sep 15, 2018
Chelan, WA
Echo Valley Trail Run
Jun 16, 2018
San Diego, CA
Sycamore Canyon Trail Race
Feb 23, 2019
Pensacola, FL
Wildcat 100
Sep 1, 2018
Hell, MI
Dances With Dirt - Hell
Sep 22, 2018
Millburn, NJ
Mayapple Trail Run
May 19, 2018
Fincastle, VA
Hellgate 100K
Dec 8, 2018
Castro Valley, CA
Bay Ridge 100K
Oct 6, 2018
Trabuco Canyon, CA
Baldy Marathons
Apr 28, 2018
Titusville, PA
Oil Creek 100 Trail Runs
Oct 6, 2018
Tahlequah, OK
Pumpkin Holler Hunnerd
Oct 20, 2018
Bailey, CO
Lactic Acid Trip
Oct 5, 2018
Morehead, KY
Hot Hot Hundred
Aug 11, 2018
Davidson, NC
DART 100K Challenge
Feb 24, 2018
Sturgis, SD
Black Hills 100
Jun 28, 2019
Lakewood, CO
Bear Chase Race - 100K/50M/50K
Sep 29, 2018
Beaver, UT
Tushars Mountain Runs
Jul 27, 2019
Rocksprings, TX
J & J Race and Trail Running Reunion
Sep 28, 2018
Harrison, TN
Run Amok
Nov 3, 2018
Port Allen, LA
Children of the Cane
Oct 6, 2018
Burns, TN
Mo' Bell
Aug 4, 2018
Wesley Chapel, FL
Long Haul 100
Jan 19, 2019
Wellsboro, PA
Pine Creek Challenge
Sep 8, 2018
Virgin, UT
Zion 100 Mile & 100K
Apr 12, 2019
Beach City, OH
Whistling Pines 112
Oct 27, 2018
Prineville, OR
Ochoco Trail Runs
Jul 6, 2019
Walden, CO
Never Summer 100K Trail Race
Jul 28, 2018
Mayer, AZ
Black Canyon Ultras
Feb 16, 2019
Challis, ID
River of No Return Endurance Runs
Jun 16, 2018
Canal Fulton, OH
Eagle Up Ultra
Jun 8, 2019
Bethera, SC
Frozen: H3
Jan 19, 2019
Hell Hole Hundred
Jun 1, 2019
Elkhorn City, KY
Cloudsplitter 100
Oct 13, 2018
Lolo, MT
Hootenanny 100K
Oct 8, 2018
Cat Spring, TX
Habanero Hundred
Aug 18, 2018
Blazing 7s Trail Run
Sep 29, 2018
Booneville, IA
Booneville Backroads Ultra
May 26, 2018
Pinson, TN
Dream Chaser
Oct 6, 2018
Naples, NY
Twisted Branch Trail Run
Aug 18, 2018
Angel Fire, NM
Angel Fire Endurance
Jun 16, 2018
Port Gamble, WA
Lumberjack Endurance Runs
Apr 14, 2018
Hardwick, NJ
NJ Ultra Festival
Apr 14, 2018
Forksville, PA
Worlds End Ultramarathon
Jun 1, 2019
Bend, TX
Tinajas Ultra
Mar 3, 2018
Quitaque, TX
Wild Canyon Ultra
Apr 13, 2019
Rosharon, TX
Skydive Ultra Texas
Oct 27, 2018
Hyden, KY
Redbird Crest 100K
Dec 1, 2018
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| Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
City Location
1. Bandera Endurance Run
-
Jan 5, 2019Saturday
-
100K, 50K, 25K trail run
Race Link
-
Bandera, TX
Bandera County, TX
2. Croom Zoom
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Jan 5, 2019Saturday
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100K, 50K, 25K trail run
Race Link
-
Brooksville, FL
Hernando County, FL
3. Frozen: H3
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Jan 19, 2019Saturday
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100M, 100K, 60K, 16.3M trail run | 100M relay
Race Link
-
Bethera, SC
Berkeley County, SC
4. Knob Hills Trail Race
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Jan 19, 2019Saturday
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100K, 50K, 25K, 10K trail run | relay
Race Link
-
Flower Mound, TX
Denton County, TX
5. Long Haul 100
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Jan 19, 2019Saturday
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100M, 100K run
Race Link
-
Wesley Chapel, FL
Pasco County, FL
6. Weymouth Woods 100K Trail Run
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Jan 19, 2019Saturday
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100K trail run
Race Link
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Southern Pines, NC
Moore County, NC
7. Ordnance 100K
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Past DateFeb 3, 2018Saturday
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100K trail run
Race Link
-
Salinas, CA
Monterey County, CA
8. Red Dirt Ultra
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Past DateFeb 3, 2018Saturday
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100M, 100K, 50K trail run
Race Link
- Provencal, LA
9. Iron Horse Endurance Runs
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Feb 9, 2019Saturday
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100M, 100K, 50M trail run
Race Link
-
Florahome, FL
Putnam County, FL
10. Lone Star 100
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Feb 9, 2019Saturday
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100M, 100K trail run | 100K relay
Race Link
-
El Paso, TX
El Paso County, TX
11. Black Canyon Ultras
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Feb 16, 2019Saturday
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100K, 60K trail run
Race Link
-
Mayer, AZ
Yavapai County, AZ
12. Virginia Beach Distance Races
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Past DateFeb 18, 2018Sunday
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100K, 50K run | 100K relay
Race Link
- Virginia Beach, VA
13. Orange Curtain 100K
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Feb 23, 2019Saturday
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100K, 50K, 30K, 10K run
Race Link
-
Cerritos, CA
Los Angeles County, CA
14. Run LOViT 100K
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Feb 23, 2019Saturday
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100K run
Race Link
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Hot Springs, AR
Garland County, AR
15. Sycamore Canyon Trail Race
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Feb 23, 2019Saturday
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100K, 50K, 13.1M trail run | 100K relay
Race Link
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San Diego, CA
San Diego County, CA
16. DART 100K Challenge
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Past DateFeb 24, 2018Saturday
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100K run
Race Link
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Davidson, NC
Mecklenburg County, NC
17. Saddle Blazer Trail Marathon
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Past DateFeb 24, 2018Saturday
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100K, 26.2M, 13.1M, 10K trail run
Race Link
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Killeen, TX
Bell County, TX
18. Tinajas Ultra
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Past DateMar 3, 2018Saturday
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13.1M run | 100K, 50K trail run | 100K, 50K relay
Race Link
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Bend, TX
San Saba County, TX
19. Crazy Desert Trail Run
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Mar 9, 2019Saturday
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100K, 50K, 13.1M, 10K, 5K trail run
Race Link
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San Angelo, TX
Tom Green County, TX