100Ms in the USA
Logan, UT
Bear 100
Sep 24, 2021
Perryville, AR
Arkansas Traveller 100
Oct 3, 2020
Glen Rose, TX
Dinosaur Valley Endurance Run
Nov 21, 2020
Florahome, FL
Iron Horse Endurance Runs
Feb 8, 2020
Fairbanks, AK
White Mountains 100
Mar 22, 2020
Kennesaw, GA
General 100
Oct 16, 2021
Sterling, IL
Hennepin Hundred
Oct 2, 2021
Big Bear Lake, CA
Kodiak Ultra Marathons
Sep 11, 2020
Sep 12, 2020
Fountain Hills, AZ
Javelina Jundred
Oct 30, 2021
Birmingham, AL
Rumpshaker 5K
Mar 27, 2021
Anchorage, AK
Susitna 100 And Little Su 50K
Feb 13, 2021
Alexander City, AL
Lake Martin 100
Mar 28, 2020
Dalton, GA
Georgia Jewel
Sep 18, 2021
Sep 17, 2021
Greeley, CO
Virtual Superhero Event
Sep 12, 2020
Easton, WA
Cascade Crest 100 Miler
Aug 28, 2021
Douglas, MA
Midstate Massive Ultra Trail
Oct 9, 2021
Abingdon, VA
Yeti 100 Mile Endurance Run
Sep 25, 2021
West Windsor, VT
Vermont 100 Endurance Race
Jul 17, 2021
Bristol, RI
Anchor Down Ultra
Aug 13, 2021
Falls of Rough, KY
Falls 100
Dec 5, 2020
Honolulu, HI
Hawaii Kai Ultra Run - Kalama Valley
Dec 14, 2019
Hawaii Kai Ultra Run - XTreme
Jul 18, 2020
HURT Trail 100
Jan 16, 2021
Ft. Valley, VA
Massanutten Mountain Trails 100 Mile Run
May 16, 2020
Old Dominion 100 Mile Endurance Run
Jun 5, 2021
Dubuque, IA
Mines of Spain 100
Oct 15, 2021
Silverton, CO
Hardrock 100
Jul 16, 2021
Silverton Ultra Dirty
Aug 6, 2021
Granite Bay, CA
Rio Del Lago 100 Mile Endurance Run
Nov 6, 2021
Ardmore, OK
Lake Murray Endurance Run
Oct 23, 2021
Salt Lake City, UT
Wasatch Front 100 Mile Endurance Run
Sep 11, 2020
Raleigh, NC
Umstead 100 Mile Endurance Run
Mar 27, 2021
Lake Tahoe, NV
Tahoe Rim Trail Endurance Runs
Jul 17, 2021
Squaw Valley, CA
Western States Endurance Run
Jun 26, 2021
Rocky Point, NY
Tesla Hertz Run
Oct 9, 2021
Tampa, FL
Fall Stampede
Sep 7, 2019
Toledo, OH
Miakonda Trail Ultra
Sep 4, 2021
Sebastian, FL
Saint Sebastian 100
Nov 2, 2019
Richland, WA
Badger Mountain Challenge
May 29, 2020
Belleville, IL
Gingerbread 5K
Dec 5, 2020
Dec 1, 2020
Dec 31, 2020
Grand Junction, CO
Grand Mesa Ultras
Jul 25, 2020
Lawrence, KS
Hawk Hundred
Sep 5, 2020
Atlanta, GA
Underground Circus 50
Dec 26, 2020
Ottawa, KS
Prairie Spirit Trail Ultra Races
Mar 27, 2021
Kansas Rails-to-Trails Extravaganza
Oct 23, 2021
Steamboat Springs, CO
Run Rabbit Run
Sep 18, 2021
Sep 17, 2021
Traverse City, MI
Lighthouse 100
Jun 13, 2021
Pittsfield, VT
Snow Devil Snowshoe Race / Winter Ultra
Feb 15, 2020
Feb 14, 2020
Peak Bloodroot Ultra
May 14, 2021
May 15, 2021
May 12, 2021
May 6, 2021
Rodeo Beach, CA
Headlands Hundred
Nov 21, 2020
Sylacauga, AL
Pinhoti 100
Nov 6, 2021
Las Cruces, NM
Fiesta Grande Ultras
Apr 27, 2019
Zombie Ultras
Nov 2, 2019
Fiesta Series
Aug 27, 2020
Aug 28, 2020
Aug 29, 2020
Aug 30, 2020
Jupiter, FL
Dunes 100
Apr 25, 2020
Apr 25, 2020
Ashland, OR
Pine to Palm 100 Mile Endurance Run
Sep 11, 2021
Los Angeles, CA
Cirque du Griffith Park
Jun 26, 2021
Willoughby Hills, OH
Burning River 100 Mile Endurance Run
Jul 24, 2021
McCall, ID
IMTUF100
Sep 11, 2021
Key West, FL
KEYS100
May 15, 2021
Hot Springs, AR
Run LOViT
Feb 27, 2021
Feb 26, 2021
Wildwood, MO
Ozark Foothills
Apr 10, 2021
Huntsville, TX
Rocky Raccoon 100 Mile Trail Run
Feb 6, 2021
Plain, WA
Plain Endurance Runs
Sep 18, 2021
Pinckney, MI
Run Woodstock
Sep 10, 2021
Sep 11, 2021
Sep 12, 2021
Corona, CA
Run4Kids 24 Hour Running Party
Mar 14, 2020
Goodyear, AZ
Coldwater Rumble Trail Runs
Jan 16, 2021
Paso Robles, CA
Silver Moon Race
May 29, 2021
Wrightwood, CA
Angeles Crest 100 Mile Endurance Run
Aug 7, 2021
Las Vegas, NV
Jackpot Ultra Running Festival
Feb 12, 2021
Feb 13, 2021
Running with the Devil
Jun 19, 2021
La Grange, WI
Kettle Moraine 100 Endurance Runs
Jun 12, 2021
tBunk Endurance Challenge
Nov 12, 2021
Nov 13, 2021
Nov 14, 2021
Cumberland, RI
Survival of the F.I.T.test 24 hour trail ultra
Oct 24, 2020
Albion, IN
Indiana Trail 100
Oct 9, 2021
Pinedale, WY
The Drift
Mar 13, 2021
Mar 12, 2021
Pensacola, FL
Wildcat Ultras
Sep 4, 2021
Triangle, VA
Devil Dog Ultras
Dec 7, 2019
Leadville, CO
Leadville Trail 100 Mile Run
Aug 21, 2021
Pocatello, ID
Scout Mountain Ultra Trail
Jun 5, 2021
Jun 4, 2021
Loudonville, OH
Mohican 100 Mile, 50 Mile and Marathon Runs
Jun 19, 2021
Castro Valley, CA
Dick Collins Firetrails
Sep 25, 2021
Sonoita, AZ
Old Pueblo Endurance Runs
Mar 5, 2022
Trabuco Canyon, CA
Baldy Marathons
May 9, 2020
Titusville, PA
Oil Creek 100 Trail Runs
Oct 10, 2020
Pelham, AL
Blood Rock 100 and 50
Dec 4, 2020
Fairplay, CO
Silverheels 100 Mile
Jul 10, 2021
Wilburton, OK
Outlaw 100
Feb 13, 2021
Wendover, UT
Salt Flats Endurance Runs
May 1, 2020
Tahlequah, OK
Pumpkin Holler Hunnerd
Oct 16, 2021
Steelville, MO
Ozark Trail 100 Mile Endurance Run
Nov 7, 2020
Pine, AZ
Mogollon Monster 100
Sep 11, 2021
Clewiston, FL
Skydive Ultra Florida
Jan 30, 2021
Blue Ridge, GA
Cruel Jewel 100
May 14, 2021
Dover, OH
Tuscazoar 100
Sep 4, 2021
Sturgis, SD
Black Hills 100
Jun 25, 2021
Jun 26, 2021
London, KY
War Hammer 100
Jun 11, 2021
Swoope, VA
Grindstone 100
Sep 17, 2021
Faust, UT
Pony Express Trail 100
Oct 15, 2021
Lanesboro, PA
Viaduct Trail Ultramarathon
Jul 11, 2020
Harrison, TN
Run Amok
Nov 14, 2020
Honey Creek, IA
The Hitchcock Experience Endurance Runs
Dec 12, 2020
Palmer Lake, CO
Kickers Endurance Run
Jul 17, 2021
Reedley, CA
Silver Moon Race
Apr 25, 2021
Ringgold, GA
General 100
Oct 16, 2021
Port Allen, LA
Children of the Cane
Nov 14, 2020
Burns, TN
Mo' Bell
Oct 10, 2020
Oct 11, 2020
Land O' Lakes, FL
Long Haul 100
Jan 16, 2021
Needville, TX
Brazos Bend 100
Dec 5, 2020
Wellsboro, PA
Pine Creek Challenge
Sep 11, 2021
Virgin, UT
Zion Ultra Marathons
Apr 10, 2021
Corolla, NC
Blackbeard's Revenge 100
Mar 27, 2021
St. Francisville, LA
Beast For A Day
May 23, 2020
Lincoln, CA
Ride To Walk Endurance Race
Sep 18, 2021
North Bonneville, WA
Strawberry Fields Forever
Jun 26, 2021
Belleville, WI
Badger Trail Races
Jul 31, 2021
Aug 1, 2021
Ville Platte, LA
Loup Garou Trail Run
Dec 4, 2021
Vienna, IL
Tunnel Hill 100
Nov 13, 2021
Nov 14, 2021
Blairstown, NJ
NJ Ultra Festival
Mar 27, 2021
Theilman, MN
Zumbro
Apr 10, 2020
Apr 11, 2020
Olallie Lake, OR
Mountain Lakes 100
Sep 18, 2021
High Ridge, MO
Shippey Endurance Runs
Jan 9, 2021
Jan 10, 2021
Custer, SD
Lean Horse
Aug 15, 2020
Aug 16, 2020
Canal Fulton, OH
Eagle Up Ultra
Jun 5, 2021
Carthage, MO
36 Hours Of Jack
Dec 7, 2019
Jamestown, TN
No Business 100
Oct 1, 2021
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
Hewitt, NJ
Wawayanda Wonderful 100
Sep 12, 2020
Oak Hill, WV
Rim to River 100
Nov 6, 2021
Port Gamble, WA
Lumberjack Endurance Runs
Jun 13, 2020
Oct 17, 2020
Julian, CA
San Diego 100
Jun 4, 2021
Kingman, KS
Honey Badger 100M Ultra Road Race
Jul 11, 2020
Fort Davis, TX
Southwest 100
Mar 27, 2021
Littlefield, AZ
Grandmaster Ultras
Feb 5, 2021
Waterville, PA
Eastern States 100
Aug 14, 2021
Mountain Center, CA
Beyond Limits Ultra
Apr 8, 2021
Hatch, UT
Bryce Canyon Ultras
May 29, 2021
Blue River, OR
Old Cascadia
Jun 19, 2021
Teanaway, WA
Teanaway Country 100
Sep 11, 2021
Chesterfield, MA
Chesterfield Gorge Ultra and 25K Race
May 30, 2020
May 31, 2020
La Sal, UT
UTE 100
Aug 13, 2021
Rising Fawn, GA
Chattanooga 100 Mile
Mar 13, 2021
Orderville, UT
Top of Zion National Parks Relay
Sep 18, 2020
Nathrop, CO
High Lonesome 100
Jul 30, 2021
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| Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
City Location
1. Fiesta Grande Ultras
-
Past DateApr 27, 2019Saturday
-
24H, 100M, 100K, 50M run
More Information
-
Las Cruces, NM
Dona Ana County, NM
2. Fall Stampede
-
Past DateSep 7, 2019Saturday
-
100M, 50M, 25M, 15M, 10M, 5M, 1M run
Race Web Page
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Tampa, FL
Hillsborough County, FL
3. East Lake Ultra and 5K Cross Country Race
-
Past DateSep 21, 2019Saturday
-
100M, 50M, 5K trail run
More Information
-
Osceola, IA
Clarke County, IA
4. Dream Chaser
-
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
5. Saint Sebastian 100
-
Past DateNov 2, 2019Saturday
-
100M, 50M trail run
Race Website
-
Sebastian, FL
Indian River County, FL
6. Zombie Ultras
-
Past DateNov 2, 2019Saturday
-
24H, 100M, 100K, 50M run
More Information
-
Las Cruces, NM
Dona Ana County, NM
7. 36 Hours Of Jack
-
Past DateDec 7, 2019Saturday
-
200K, 100M, 100K, 80K, 50K, 30K, 15K, 5K run
More Information
-
Carthage, MO
Jasper County, MO
8. Devil Dog Ultras
-
Past DateDec 7, 2019Saturday
-
100M, 100K trail run
Race Website
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Triangle, VA
Prince William County, VA
9. Hawaii Kai Ultra Run - Kalama Valley
-
Past DateDec 14, 2019Saturday
-
24H, 100M, 100K, 50M, 50K, 26.2M, 13.1M run
Race Link
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Honolulu, HI
Honolulu County, HI
10. ARR Festivus
-
Past DateDec 22, 2019SundayVirtual for 2020/2021
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500M, 250M, 100M run
More Information
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Tempe, AZ
Maricopa County, AZ
11. Iron Horse Endurance Runs
-
Past DateFeb 8, 2020Saturday
-
100M, 100K, 50M trail run
More Information
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Florahome, FL
Putnam County, FL
12. Snow Devil Snowshoe Race / Winter Ultra
-
Past DateFeb 14, 2020Friday
-
100M trail run
More Information
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Pittsfield, VT
Rutland County, VT
13. Antelope Canyon Ultra Marathons
-
Past DateMar 14, 2020Saturday
-
100M, 50M, 55K, 13.1M trail run
More Information
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Page, AZ
Coconino County, AZ
14. Run4Kids 24 Hour Running Party
-
Past DateMar 14, 2020Saturday
-
24H, 100M, 12H, 6H, 5K run
More Information
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Corona, CA
Riverside County, CA
15. St. Paddy's Leprechaun Chase Challenge
-
Past DateMar 14, 2020SaturdayVirtual for 2021
-
100M run
More Information
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Holland, MI
Ottawa County, MI
16. Pulse Endurance Runs
-
On-Site RacePast DateMar 20, 2020FridayVirtual Option
-
24H, 100M, 12H, 6H trail run | 100M relay
Race Web Page
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Eagle, ID
Ada County, ID
17. White Mountains 100
-
On-Site RaceCancelledMar 22, 2020SundayVirtual Option
-
100M run
More Information
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Fairbanks, AK
Fairbanks North Star County, AK
18. Lake Martin 100
-
CancelledMar 28, 2020Saturday
-
100M, 50M, 27M trail run
More Information
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Alexander City, AL
Tallapoosa County, AL
19. Zumbro
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CancelledApr 10, 2020Friday
-
100M trail run
Race Website
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Theilman, MN
Wabasha County, MN
20. Dunes 100
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CancelledApr 25, 2020SaturdayTBDRescheduledApr 25, 2020Saturday
-
100M, 50M trail run | 100M relay
More Information
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Jupiter, FL
Palm Beach County, FL
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.