October Ultras in the USA
Concrete, WA
Baker Lake 50K
Oct 3, 2020
Greensboro, NC
Triple Lakes Trail Race
Oct 31, 2020
San Luis Obispo, CA
Slo ULTRA
Oct 24, 2020
Sausalito, CA
Marine Mammal Ultra
Oct 19, 2019
Titusville, NJ
Trails4Tails Fest
Oct 16, 2021
Perryville, AR
Arkansas Traveller 100
Oct 3, 2020
Holland, MI
Ultra Bird Trail Races
Oct 24, 2020
Glen Rose, TX
Dallas Spartan Trail
Oct 22, 2021
Oct 24, 2021
Greenbush, WI
Glacial Trail 50 Mile & 50K
Oct 11, 2020
Kennesaw, GA
General 100
Oct 16, 2021
Sterling, IL
Hennepin Hundred
Oct 3, 2020
Flagstaff, AZ
Flagstaff Sky Peaks Mountain Runs
Oct 5, 2019
Richmond, VA
Ragnar Trail Richmond, VA
Oct 9, 2020
Fountain Hills, AZ
Javelina Jundred
Oct 31, 2020
Cedar City, UT
Cedar City Thunderbird 50K
Oct 17, 2020
Newcastle, WA
Cougar Mountain Trail Running Series
Jun 13, 2020
Jul 11, 2020
Aug 8, 2020
Sep 5, 2020
1 more
Deerfield Beach, FL
PALM100 Ultras
Oct 26, 2019
Waynesville, OH
Broken Toe 50K
Oct 17, 2020
Bellingham, WA
Trails to Taps Relay
Oct 18, 2020
Douglas, MA
Midstate Massive Ultra Trail
Oct 10, 2020
Staten Island, NY
Conference House Endurance Challenge
Oct 5, 2019
Solon, IA
Hawkeye 50K & 25K
Oct 24, 2020
Franklin, NC
Naturalist - Epic 50K, 25K
Oct 3, 2020
Bend, OR
HTC High Desert
Oct 2, 2021
Dayton, OH
OX 12 Hour Endurance Run
Oct 3, 2020
Boalsburg, PA
Tussey Mountainback 50 Mile Relay and Ultra
Oct 11, 2020
Duluth, MN
Wild Duluth Races
Oct 17, 2020
Columbus, GA
Columbus Day Relay
Oct 10, 2020
Crested Butte, CO
Crested Butte Ultra
Oct 3, 2020
Kings Park, NY
Fred von der Heydt Memorial 6 Hour Birthday Run
Oct 20, 2019
Dubuque, IA
Mines of Spain 100
Oct 16, 2020
Naples, FL
Gulf to Gulf 80 Mile Relay
Oct 17, 2020
Newport, OR
Dia De Los Muertos Endurance Run
Oct 31, 2020
Colorado Springs, CO
Cheyenne Mountain Trail Race
Oct 24, 2020
Rattler Trail Race
Oct 24, 2020
East Peoria, IL
Farmdale Trail Run
Oct 12, 2019
Ardmore, OK
Lake Murray Endurance Run
Oct 24, 2020
Raleigh, NC
Tuna Relay 200
Oct 22, 2021
Philadelphia, PA
Dirty German
Oct 24, 2020
Aug 1, 2020
Dec 31, 2020
Canton, GA
Sleepy Hollow Hourly Ultra
Oct 10, 2020
Bandera, TX
Cactus Rose 100 Mile
Oct 23, 2020
Oct 25, 2020
Rocky Point, NY
Tesla Hertz Run
Oct 10, 2020
Charlotte, NC
WC-50 Ultra Trail Marathon
Oct 10, 2020
Emporium, PA
Sinnemahone Trail Run
Oct 17, 2020
Lake Charles, LA
Danimal 50K
Oct 19, 2019
Minneapolis, MN
Loopet Loppet
Oct 9, 2021
South Lake Tahoe, CA
Lake Tahoe Marathon
Oct 10, 2021
Oct 8, 2021
Oct 9, 2021
Fayetteville, AR
RAPTOR Adventure Series
Oct 25, 2020
Oct 25, 2020
Guilford, CT
Bimblers Bluff 50K
Oct 18, 2020
Bloomington, IN
Tecumseh Trail Marathon
Oct 24, 2020
Reading, PA
Blues Cruise 50K Trail Ultra
Oct 4, 2020
Canandaigua, NY
Can Lake 50 Ultras
Oct 9, 2021
Ft. Mill, SC
Ragnar Trail Carolinas
Oct 24, 2020
Santa Clarita, CA
Santa Clarita Ultra
Oct 24, 2020
Tacoma, WA
Defiance 50K
Oct 10, 2020
South Bend, IN
St Pats 24 Hour
Oct 19, 2019
Cincinnati, OH
Stone Steps 50K
Oct 25, 2020
Comfort, TX
Ragnar Trail Hill Country
Oct 16, 2020
Plymouth, MA
Long, Hard & Dirty Ultra
Oct 10, 2020
Chattanooga, TN
Rock/Creek Stump Jump Trail Race
Oct 3, 2020
Rochester Hills, MI
Thru The Leaves Ultra & Relay
Oct 3, 2020
Woodside, CA
Woodside Trail Run
Oct 31, 2020
Amherst, NH
Joe English Twilight Challenge
Oct 12, 2019
Adrian, MI
Heritage Trail Run
Oct 25, 2020
New London, WI
Mosquito Hill Endurance Run
Oct 17, 2020
Castle Rock, CO
Castle Rock Trail Festival
Oct 3, 2020
Chapel Hill, NC
Jordan Lake 12-Hour Challenge
Oct 3, 2020
New York, NY
Manhattan Perimeter Relay
Oct 17, 2020
North Augusta, SC
FATS 50K
Oct 4, 2020
Spokane, WA
Chocolate Chip Cookie 50K Trail Run
Oct 26, 2019
Wilsonville, OR
ORRC Autumn Leaves Run
Oct 24, 2020
Pinckney, MI
Trail Marathon
Oct 25, 2020
Oct 24, 2020
Corona, CA
Twin Peaks 50
Oct 17, 2020
San Francisco, CA
Pinkathon San Francisco
Oct 26, 2019
Ruth Anderson Memorial Endurance Run
Oct 10, 2020
Oct 9, 2021
Black River Falls, WI
Black River Trail Classic
Oct 17, 2020
Kirtland, OH
Outrun 24 Hour Trail Race
Oct 3, 2020
Charleston, WV
Monstrosity on Middle Ridge 12H Run
Oct 3, 2020
Arlington, VA
Marine Corps Marathon
Oct 25, 2020
Oct 25, 2020
Omaha, NE
G.O.A.T.z Trail Runs
Oct 18, 2020
Oakridge, OR
Willamette Headwaters Endurance Event
Oct 3, 2020
Oklahoma City, OK
24 The Hard Way Run
Oct 17, 2020
Cumberland, RI
Survival of the F.I.T.test 24 hour trail ultra
Oct 24, 2020
Boonsboro, MD
Rick O'Donnell Memorial 5.22 Mile Trail Run and Ultra Challenge
Oct 11, 2020
Oct 1, 2020
Oct 31, 2020
Columbia, MO
Rock Bridge Revenge
Oct 10, 2020
Albion, IN
Indiana Trail 100
Oct 9, 2021
San Antonio, TX
El Taco Loco
Oct 24, 2020
Reidsville, NC
Lost Runners 24
Oct 17, 2020
San Diego, CA
Lake Hodges Trail Fest
Oct 24, 2020
Windham, NY
Catskills P2B Relay
Oct 17, 2021
Waddell, AZ
Vertigo Night Runs
Oct 3, 2020
Chicago, IL
Chicago Lakefront 50K/50M
Oct 31, 2020
Belmont, OH
Barkcamp Race
Oct 3, 2020
Presque Isle, PA
Personal Endurance Classic
Oct 17, 2020
Lexington, KY
Bourbon Chase
Oct 23, 2020
Des Moines, IA
Equalizer Endurance Run
Oct 26, 2019
Mountainside, NJ
Spring Watchung Race
Jun 7, 2020
Oct 31, 2020
New Gloucester, ME
Royal River Relay
Oct 17, 2020
Saratoga, CA
Skyline to the Sea
Oct 3, 2020
Oct 4, 2020
Wausau, WI
IRONBULL Ultra Trail 50K/15K
Oct 3, 2020
Baltimore, MD
Patapsco Valley 50K
Oct 24, 2020
Gills Rock, WI
Fall 50 - Door County
Oct 24, 2020
Titusville, PA
Oil Creek 100 Trail Runs
Oct 10, 2020
Vernon Hills, IL
Des Plaines River Trail Races
Oct 10, 2020
Council Bluffs, IA
Yippee-Ki-Yay 50K
Oct 24, 2020
Simi Valley, CA
Rocky Peak Ultra Trail Race
Oct 17, 2020
Whitefish, MT
Whitefish Trail Legacy Run
Oct 4, 2020
Oct 3, 2020
Wolf Creek, MT
Wolf Creek Canyon Relay
Oct 4, 2020
Tahlequah, OK
Pumpkin Holler Hunnerd
Oct 17, 2020
Gunnison, CO
Sage Burner Trail Run
Oct 17, 2020
Circleville, WV
West Virginia Trilogy
Oct 9, 2020
Oct 10, 2020
Oct 11, 2020
Augusta, NJ
3 Days at the Fair
Oct 2, 2020
Oct 3, 2020
Oct 1, 2020
Sep 28, 2020
NJ Trail Series One Day
Oct 3, 2020
Apalachicola, FL
Running for the Bay! Marathon
Oct 20, 2019
Blue Ridge, GA
Blue Ridge Ultra
Oct 9, 2021
Cannon Beach, OR
Gorgeous Coast Relay
Oct 4, 2020
Susanville, CA
Bizz Johnson
Oct 11, 2020
Oct 10, 2020
Sisters, OR
Three Sisters Skyline
Oct 3, 2021
Oct 2, 2021
Cortland, NY
Finger Lakes P2B Relay
Oct 17, 2020
Faust, UT
Pony Express Trail 100
Oct 16, 2020
Laurel, DE
Trap Pond 50K
Oct 4, 2020
Savage, MN
Surf The Murph
Oct 24, 2020
Pilot Mountain, NC
Pilot Mountain to Hanging Rock Trail Ultras
Oct 10, 2020
Powhatan, VA
Piedmont 8 Hour
Oct 24, 2020
Reedley, CA
Silver Moon Race
Oct 31, 2020
Ringgold, GA
General 100
Oct 16, 2021
Fries, VA
New River Trail 50K/25K
Oct 12, 2019
Burns, TN
Mo' Bell
Oct 10, 2020
Oct 11, 2020
East Memphis, TN
Haiti Medical Missions 24 Hour Tour d'Esprit
Oct 11, 2019
Port St Joe, FL
50 For Florida
Oct 10, 2020
Derwood, MD
Rock the Creek Relay
Oct 4, 2020
Palm Coast, FL
Jacks Trail Race
Oct 25, 2020
Alabaster, AL
Endless Mile
Oct 16, 2020
Oct 17, 2020
Wellsboro, PA
Green Monster Trail Challenge
Oct 10, 2021
Richfield, OH
Crowell Hilaka trail run
Oct 18, 2020
Burnsville, NC
Quest For The Crest Trail Races
Oct 17, 2020
Canton, MS
Way's Bluff
Oct 10, 2020
Clermont, KY
Bourbon Chase
Oct 23, 2020
Ashford, CT
NipMuck Trail Marathon
Oct 4, 2020
Twin Bridges, CA
Echo Summit Trail Challenge
Oct 3, 2020
Middleville, MI
Yankee Springs Fall Festival
Oct 3, 2020
Tillamook, OR
Elk-Kings Trail Races
Oct 2, 2021
Alachua, FL
Gate2Gate Trail Run
Oct 24, 2020
Garrison, NY
Castle to River Run
Oct 24, 2020
Los Olivos, CA
Back on the Ranch
Oct 3, 2020
Oct 2, 2020
Amherst, NY
Buffalo Runners 6 Hour Classic
Oct 11, 2020
Meriden, KS
Lake Perry Rocks
Oct 5, 2019
Pisgah Forest, NC
Pisgah 55.5K Running Race
Oct 10, 2020
Gold Beach, OR
Secret Beach 100K/50M
Oct 3, 2020
Moncks Corner, SC
Revenge of the Stede Bonnet
Oct 3, 2020
Los Altos, CA
Vista Verde Skyline Run
Oct 24, 2020
Farmersville, TX
Oktoberfest Trail Run Festival
Oct 17, 2020
Franktown, CO
Castlewood Canyon Fun Run
Oct 3, 2020
Lillington, NC
Cape Fear 24H Endurance Run
Oct 17, 2020
Palo Duro Canyon State Park, TX
Palo Duro Trail Run
Oct 17, 2020
Kansasville, WI
Wolf Pack Trail Run & Relay
Oct 9, 2021
Borden, IN
Knobstone Knockout
Oct 11, 2020
Dugway, UT
Dugway Trail and Ultra Run
Oct 3, 2020
Crown King, AZ
Crown King Scramble
Mar 28, 2020
Oct 17, 2020
Mokuleia, HI
Peacock Challenge
Oct 17, 2020
Kyburz, CA
Lover's Leap of Faith
Oct 3, 2020
Lolo, MT
Hootenanny 50K
Oct 4, 2020
Cornwall, CT
Mohawk Mountain Race
Oct 11, 2020
Sedalia, CO
Indian Creek Fifties
Oct 16, 2021
Norton, VA
Cloudsplitter 100
Oct 17, 2020
Pinson, TN
Dream Chaser
Oct 5, 2019
Hewitt, NJ
Ragnar Trail Wawayanda Lake
Oct 3, 2020
Port Gamble, WA
Lumberjack Endurance Runs
Jun 13, 2020
Oct 17, 2020
Polebridge, MT
Le Grizz Ultramarathon
Oct 10, 2020
Julian, CA
Oriflamme 50K
Oct 17, 2020
Scotts, MI
Furlong 250
Oct 17, 2020
Arrington, VA
Virginia Spartan Trail
Oct 29, 2021
Oct 31, 2021
Pocahontas, TN
Walking Tall 50K/25K
Oct 17, 2020
Mont Clare, PA
Schuylkill River Relay
Oct 31, 2020
Mill Spring, NC
Dark Horse Ultra
Oct 31, 2020
Nov 1, 2020
Pamplin, VA
High Bridge Ultra 50K
Oct 10, 2020
Colden, NY
Tamarack Big Beast
Oct 24, 2020
Grapeland, TX
Mission Tejas Trail Run
Oct 24, 2020
Canton, SD
Glacier Hills Ultra
Oct 24, 2020
Copperhill, TN
Big Frog Trail Runs
Oct 4, 2020
Upper Black Eddy, PA
Muleskinner
Oct 12, 2019
Runsylvania Family Run Fest
Oct 12, 2019
North Bend, PA
Black Forest Ultra 100K
Oct 3, 2021
Vesuvius, VA
Monte Vino Races - 12 Ridges Vineyard
Oct 17, 2020
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| Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
City Location
1. 3 Days at the Fair
-
Past DateOct 1, 2020Thursday
-
72H, 50K, 26.2M run
Race Web Page
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Augusta, NJ
Sussex County, NJ
2. 3 Days at the Fair
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Past DateOct 2, 2020Friday
-
48H, 50K, 26.2M run
Race Web Page
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Augusta, NJ
Sussex County, NJ
3. Back on the Ranch
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Past DateOct 2, 2020Friday
-
48H trail run
More Information
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Los Olivos, CA
Santa Barbara County, CA
4. Elk-Kings Trail Races
-
Oct 2, 2021Saturday
-
50K, 27.5M, 25K trail run
Race Web Page
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Tillamook, OR
Tillamook County, OR
5. HTC High Desert
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Oct 2, 2021Saturday
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71M relay
More Information
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Bend, OR
Deschutes County, OR
6. 3 Days at the Fair
-
Past DateOct 3, 2020Saturday
-
24H, 12H, 6H, 50K, 26.2M run
Race Web Page
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Augusta, NJ
Sussex County, NJ
7. Arkansas Traveller 100
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CancelledOct 3, 2020Saturday
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100M trail run
Race Web Page
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Perryville, AR
Perry County, AR
8. Back on the Ranch
-
Past DateOct 3, 2020Saturday
-
24H, 12H, 6H run
More Information
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Los Olivos, CA
Santa Barbara County, CA
9. Baker Lake 50K
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Past DateOct 3, 2020Saturday
-
50K trail run
Race Website
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Concrete, WA
Skagit County, WA
10. Barkcamp Race
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CancelledOct 3, 2020Saturday
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40M, 26.2M, 13.1M, 20K, 10K run
Race Web Page
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Belmont, OH
Belmont County, OH
11. Black Forest Ultra 100K
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Oct 3, 2021Sunday
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100K trail run
Race Website
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North Bend, PA
Clinton County, PA
12. Castle Rock Trail Festival
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Past DateOct 3, 2020Saturday
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50K, 26.2M, 13.1M, 10K, 5K trail run
Race Web Page
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Castle Rock, CO
Douglas County, CO
13. Castlewood Canyon Fun Run
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CancelledOct 3, 2020Saturday
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10H, 6H, 26.2M, 13.1M trail run
Race Information
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Franktown, CO
Douglas County, CO
14. Crested Butte Ultra
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Past DateOct 3, 2020Saturday
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105K, 55K trail run
More Information
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Crested Butte, CO
Gunnison County, CO
15. Dugway Trail and Ultra Run
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Past DateOct 3, 2020Saturday
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50K, 30K, 13.1M, 10K, 5K trail run | kids run
Race Information
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Dugway, UT
Tooele County, UT
16. Echo Summit Trail Challenge
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Past DateOct 3, 2020Saturday
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50M, 50K, 26.2M, 20M, 10M trail run
More Information
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Twin Bridges, CA
El Dorado County, CA
17. Hennepin Hundred
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CancelledOct 3, 2020Saturday
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100M, 50M, 50K trail run
More Information
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Sterling, IL
Whiteside County, IL
18. IRONBULL Ultra Trail 50K/15K
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Past DateOct 3, 2020Saturday
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50K, 15K trail run
Race Information
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Wausau, WI
Marathon County, WI
19. Jordan Lake 12-Hour Challenge
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CancelledOct 3, 2020Saturday
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12H, 6H run | 12H, 6H relay
Race Web Page
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Chapel Hill, NC
Orange County, NC
20. Lover's Leap of Faith
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Past DateOct 3, 2020Saturday
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50M, 50K, 18M, 13.1M, 9M, 10K, 5K trail run
More Information
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Kyburz, CA
El Dorado County, CA
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.