September Ultras in the USA
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Lock Haven, PA
Eagleton Trail Challenge
Sep 30, 2018
Logan, UT
Bear 100
Sep 28, 2018
San Luis Obispo, CA
Slo ULTRA
Sep 1, 2018
Hillsboro, WI
DRIFTLESS 50 Trail Races
Sep 29, 2018
Mt Shasta, CA
Headwaters Trail Run
Sep 29, 2018
Olathe, KS
Patriots Run
Sep 11, 2018
Longmont, CO
American Heroes Run
Sep 8, 2018
Wantagh, NY
Ocean to Sound 50 Mile Relay
Sep 23, 2018
Glen Rose, TX
Rough Creek Trail Run
Sep 15, 2018
Fairbanks, AK
Equinox Marathon
Sep 15, 2018
Damascus, VA
Iron Mountain 50, 30, 16 Mile Trail Run
Sep 1, 2018
Pittsfield, MA
Free to Run Trail Races
Sep 15, 2018
Stratford, CT
Forgotten Forest Ultra Run
Sep 22, 2018
Asheville, NC
Blue Ridge Relay
Sep 7, 2018
Bowling Green, KY
Southeastern Trail Runner Podcast 12 Hour Challenge
Sep 2, 2018
Muskegon, MI
Ragnar Michigan
Sep 28, 2018
Fountain Hills, AZ
Jangover Night Runs
Sep 29, 2018
Midway, UT
Woman of Steel Relay
Sep 22, 2018
Maui, HI
Hana 52M Relay
Sep 8, 2018
Dalton, GA
Georgia Jewel
Sep 22, 2018
Annandale, VA
Mason District Running Festival
Sep 22, 2018
Morristown, TN
Dirt Circuit
Sep 29, 2018
Abingdon, VA
Yeti 100 Mile Endurance Run
Sep 28, 2018
Staten Island, NY
Conference House Endurance Challenge
Sep 22, 2018
Tyler, TX
Piney Woods Ultra
Sep 22, 2018
Honolulu, HI
Tantalus Triple Trek 30 Miler
Sep 1, 2018
Downingtown, PA
Run The Loop Marathon
Sep 2, 2018
Duluth, MN
Grand Traverse
Sep 29, 2018
Lutsen, MN
Superior Trail Fall Races - Superior Sawtooth 100 Mile Trail Run
Sep 7, 2018
Superior Trail Fall Races - Marathon & 50M
Sep 8, 2018
Hanover, PA
Trails 4 Tails
Sep 22, 2018
Crested Butte, CO
Grand Traverse Mountain Run
Sep 1, 2018
Crested Butte Ultra
Sep 15, 2018
Whitehouse, OH
Oak Openings Stampede Trail Races
Sep 16, 2018
Berkeley, CA
Berkeley Trail Adventure
Sep 22, 2018
Salt Lake City, UT
Wasatch Front 100 Mile Endurance Run
Sep 7, 2018
Moscow, ID
Moscow Mountain Madness
Sep 9, 2018
Brownsville, VT
Vermont 50 Ultra Run
Sep 30, 2018
Vacaville, CA
Pick Your Poison
Sep 15, 2018
Dublin, OH
40 For 40
Sep 1, 2018
Idaho Springs, CO
Flaming Foliage Relay
Sep 7, 2018
Douthat State Park, VA
Odyssey Trail Running Rampage
Sep 8, 2018
Stinson Beach, CA
Coastal 50K
Sep 22, 2018
Lawrence, KS
Hawk Hundred
Sep 8, 2018
Steamboat Springs, CO
Run Rabbit Run - 100M Trail Run
Sep 14, 2018
Run Rabbit Run - 50M Trail Run
Sep 15, 2018
Willcox, AZ
Copper Cowboy
Sep 29, 2018
Rodeo Beach, CA
Headlands Hundred
Sep 8, 2018
Ashland, OR
Pine to Palm 100 Mile Endurance Run
Sep 8, 2018
Middletown, CT
Run for the Fallen CT
Sep 15, 2018
Youngstown, OH
Youngstown Ultra Trail Classic 50K & 25K
Sep 15, 2018
Woodside, CA
Whiskey Hill Redwood Run
Sep 16, 2018
Amherst, NH
Joe English Twilight Challenge
Sep 22, 2018
Wildwood, MO
Rockin' Rockwoods Ultra Run
Sep 29, 2018
La Crosse, WI
Goosebumps 6 and 24 Hour Run - 24 Hour
Sep 21, 2018
Goosebumps 6 and 24 Hour Run - 6 Hour
Sep 22, 2018
Delafield, WI
Badgerland Striders 24-12-6 Hour Runs
Sep 1, 2018
Lapham Peak Trail Races
Sep 15, 2018
McKenzie Bridge, OR
McKenzie River Trail Run
Sep 8, 2018
Cumberland, MD
Ragnar Relay Washington D.C.
Sep 28, 2018
Santa Fe, NM
Endurance Santa Fe Mountain Races
Sep 1, 2018
Plain, WA
Plain Endurance Runs
Sep 15, 2018
Pinckney, MI
Run Woodstock - Day 1 - Hallucination 100M/100K
Sep 7, 2018
Run Woodstock - Day 2
Sep 8, 2018
San Francisco, CA
6-Hour Distance Classic
Sep 2, 2018
Lakeland, FL
Tick Tock Ultra
Sep 22, 2018
Fenton, MO
Flatlanders 6 and 12 Hour Runs
Sep 2, 2018
Port Angeles, WA
GOAT Run
Sep 8, 2018
Tulsa, OK
Urban Adventure Race
Sep 29, 2018
Auburn, CA
Folsom Lake Ultra Trail
Sep 15, 2018
Knoxville, TN
POW/MIA 12 Hour Run
Sep 8, 2018
San Antonio, TX
I Ran Flagship Marathons - Djibouti
Sep 1, 2018
I Ran Marathons - Triple Crown Challenge Kohnoor
Sep 1, 2018
I Ran Flagship Marathons - Dominica
Sep 8, 2018
I Ran Flagship Marathons - Dominican Republic
Sep 15, 2018
I Ran Flagship Marathons - Ecuador
Sep 23, 2018
Rockingham, NC
Hinson Lake 24 Hour Ultra Classic
Sep 29, 2018
Jim Thorpe, PA
Boulder Field 100
Sep 15, 2018
Pensacola, FL
Wildcat 100
Sep 1, 2018
Triangle, VA
12-HR Adventure Trail Run
Sep 15, 2018
Hell, MI
Dances With Dirt - Hell
Sep 22, 2018
Myrtle Beach, SC
Storm The Beach 50K
Sep 22, 2018
Saratoga Springs, NY
Ragnar Adirondacks
Sep 21, 2018
Sylvania, OH
Olander 24 Hour Ultra Run & Relay
Sep 2, 2018
Estes Park, CO
Estes Epic
Sep 2, 2018
Brainard, NE
Bohemian Alps Endurance Runs
Sep 8, 2018
Leadville, CO
Cloud City Multi-Stage
Sep 8, 2019
Logan, OH
Hocking Hills Indian Run
Sep 15, 2018
Mountainside, NJ
Squatchung Surprise
Sep 29, 2018
Ringwood, NJ
Mountain Madness 50K
Sep 22, 2018
Grants, NM
Mt. Taylor 50K
Sep 29, 2018
Wausau, WI
Ragnar Trail Northwoods
Sep 21, 2018
Nashotah, WI
Run2theSun Dusk2Dawn Ultra-Relay
Sep 7, 2018
Mt Laguna, CA
Noble Canyon 50K
Sep 22, 2018
Watchung, NJ
Bakers Revenge Trail Race
Sep 22, 2018
Rosendale, NY
Shawangunk Ridge Trail Run
Sep 15, 2018
Independence, KS
FlatRock 50K / 25K
Sep 29, 2018
Breaks, VA
Breaks 40 Miler
Sep 8, 2018
Franconia, NH
Reach the Beach Relay
Sep 14, 2018
Pine, AZ
Mogollon Monster 100
Sep 15, 2018
Blue Ridge, GA
Tortoise and the Hare 50K/30K
Sep 29, 2018
Cle Elum, WA
Cle Elum Ridge 50K and 25K
Sep 22, 2018
Lakewood, CO
Bear Chase Race - 100K/50M/50K
Sep 29, 2018
Nebo, NC
Table Rock Ultras
Sep 22, 2018
Circleville, OH
Yo Mommas Old School
Sep 30, 2017
Rocksprings, TX
J & J Race and Trail Running Reunion
Sep 28, 2018
Germantown, OH
Germantown 50K
Sep 29, 2018
Erick, OK
Do-Wacka-Do Trail Runs
Sep 9, 2017
Powhatan, VA
Legend Brewing Ultra
Sep 23, 2017
Loves Park, IL
Rock Cut Hobo 50K
Sep 9, 2018
Chesterfield, NH
Pisgah Mountain Trail Races
Sep 16, 2018
Johnson City, TX
Lighthouse Hill Ranch 10/20 Mile/ 50K Trail Run
Sep 16, 2017
Corbin, KY
Moonbow Ultra
Sep 29, 2018
Cove Lake State Park, TN
Cumberland Trail 50K
Sep 22, 2018
Eagle, CO
Mountain Rats - Eagle, CO
Sep 8, 2018
Derwood, MD
Rock the Creek Relay
Sep 30, 2018
Wellsboro, PA
Pine Creek Challenge
Sep 8, 2018
Cascade Locks, OR
Gorgeous Relay
Sep 16, 2018
East Charleston, VT
24 Hours of the Northeast Kingdom
Sep 15, 2018
Ashford, CT
NipMuck Trail Marathon
Sep 30, 2018
Twin Bridges, CA
Echo Summit Trail Challenge
Sep 15, 2018
Reeds Spring, MO
Forrest Gump Challenge
Sep 1, 2018
Empire, CO
Devil on the Divide
Sep 8, 2018
Big Rapids, MI
Hungerford Trail Races
Sep 29, 2018
Shandaken, NY
Cat's Tail Trail Marathon
Sep 29, 2018
Richfield, UT
Crimson Canyons Ultra
Sep 29, 2018
Wartburg, TN
Barkley Fall Classic 50K
Sep 15, 2018
Olallie Lake, OR
Mountain Lakes 100
Sep 22, 2018
Nine Mile Falls, WA
State Park Series - #4 Riverside State Park
Sep 8, 2018
Vineyard, UT
Race Around Relay
Sep 22, 2018
Summerfield, NC
Doggettville 12 Relay and Ultra Race
Sep 15, 2018
Lennox, SD
Blood Run
Sep 2, 2018
Cat Spring, TX
Blazing 7s Trail Run
Sep 29, 2018
Lakewood, NY
4 For 44 - Team Relay
Sep 9, 2018
Carson, WA
Bunker to Bonneville 50K
Sep 2, 2017
Glide, OR
Swiftwater 50K
Sep 22, 2018
Pequea, PA
KTA Trail Challenge
Sep 8, 2018
Fort Davis, TX
Sky Island 50K/25K
Sep 22, 2018
Kykotsmovi Village, AZ
Paatuwaqatsi Run
Sep 8, 2018
Moapa, NV
Dam Ruck 'N' Run
Sep 22, 2018
Toutle, WA
Backcountry Rise
Sep 1, 2018
Blue River, OR
Old Cascadia
Sep 15, 2018
Groton, VT
Groton Forest Trail Run
Sep 8, 2018
Teanaway, WA
Teanaway Country 100
Sep 15, 2018
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| Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
City Location
1. 40 For 40
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Sep 1, 2018Saturday
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40M, 26.6M, 13.3M run
Race Link
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Dublin, OH
Franklin County, OH
2. Backcountry Rise
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Sep 1, 2018Saturday
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50K, 20M, 13.1M trail run
Race Link
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Toutle, WA
Cowlitz County, WA
3. Badgerland Striders 24-12-6 Hour Runs
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Sep 1, 2018Saturday
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24H, 12H, 6H run
Race Link
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Delafield, WI
Waukesha County, WI
4. Endurance Santa Fe Mountain Races
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Sep 1, 2018Saturday
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50M, 50K, 13.1M, 1M trail run | 50M relay
Race Link
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Santa Fe, NM
Santa Fe County, NM
5. Forrest Gump Challenge
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Sep 1, 2018Saturday
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50K, 26.2M, 13.1M run
Race Link
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Reeds Spring, MO
Stone County, MO
6. Grand Traverse Mountain Run
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Sep 1, 2018Saturday
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40M trail run
Race Link
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Crested Butte, CO
Gunnison County, CO
7. I Ran Flagship Marathons - Djibouti
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Sep 1, 2018Saturday
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50K, 26.2M, 13.1M, 10K, 5K run
Race Link
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San Antonio, TX
Bexar County, TX
8. I Ran Marathons - Triple Crown Challenge Kohnoor
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Sep 1, 2018Saturday
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50K, 26.2M, 13.1M, 10K, 5K run
Race Link
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San Antonio, TX
Bexar County, TX
9. Iron Mountain 50, 30, 16 Mile Trail Run
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Sep 1, 2018Saturday
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50M, 30M, 16M trail run
Race Link
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Damascus, VA
Washington County, VA
10. Slo ULTRA
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Sep 1, 2018Saturday
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50K, 13.1M, 5K trail run | kids run
Race Link
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San Luis Obispo, CA
San Luis Obispo County, CA
11. Tantalus Triple Trek 30 Miler
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Sep 1, 2018Saturday
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30M run
Race Link
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Honolulu, HI
Honolulu County, HI
12. Wildcat 100
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Sep 1, 2018Saturday
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100M, 100K run
Race Link
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Pensacola, FL
Escambia County, FL
13. 6-Hour Distance Classic
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Sep 2, 2018Sunday
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6H run
Race Link
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San Francisco, CA
San Francisco County, CA
14. Blood Run
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Sep 2, 2018Sunday
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12H, 6H, 3H trail run
Race Link
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Lennox, SD
Lincoln County, SD
15. Bunker to Bonneville 50K
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Past DateSep 2, 2017Saturday
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50K trail run
Race Link
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Carson, WA
Skamania County, WA
16. Estes Epic
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Sep 2, 2018Sunday
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55K, 13.1M trail run
Race Link
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Estes Park, CO
Larimer County, CO
17. Flatlanders 6 and 12 Hour Runs
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Sep 2, 2018Sunday
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12H, 6H run
Race Link
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Fenton, MO
St Louis County, MO
18. Labor Pain - 12 Hour Endurance Trail Run
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Sep 2, 2018Sunday
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12H trail run
Race Link
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Reading, PA
Berks County, PA
19. Olander 24 Hour Ultra Run & Relay
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Sep 2, 2018Sunday
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24H run | 24H relay
Race Link
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Sylvania, OH
Lucas County, OH