Ultramarathon · Season guide

Fall Ultramarathons

Fall ultramarathons range from runnable road classics to desert endurance tests and technical trail races. Cooler conditions can broaden the options, but daylight, elevation, terrain, and qualification requirements still make careful race selection essential.

Showing all 71 races in this collection. Updated August 2026.

Notable race guides: Javelina Jundred, JFK 50 Mile, Moab 240, and Spartathlon.

  1. 01SwissPeaks 170Thursday, September 3, 2026Oberwald, SwitzerlandSwissPeaks 170 sends runners across roughly 168 kilometres of steep Valais mountain terrain, linking Oberwald with the shores of Lake Geneva.Guide
  2. 02Superior 100 MileFriday, September 11, 2026Lutsen, MinnesotaSuperior 100 Mile follows the rugged Superior Hiking Trail from Gooseberry State Park to Lutsen across northeast Minnesota's North Shore in September.GuideResults
  3. 03Ultra-Trail Harricana 125Friday, September 11, 2026La Malbaie, CanadaUltra-Trail Harricana 125 follows a rugged linear route through Quebec's Charlevoix backcountry with about 4,635 metres of climbing in September.Guide
  4. 04Wasatch Front 100Friday, September 11, 2026Kaysville, UtahWasatch Front 100 crosses Utah's rugged range from Kaysville to Soldier Hollow, stacking about 24,000 feet of ascent into a strict 36-hour clock.Guide
  5. 05Wildstrubel 100Friday, September 11, 2026Crans-Montana, SwitzerlandWildstrubel 100 sends runners around a 113-kilometre Alpine loop from Crans-Montana, with 6,600 metres of climbing and a 30-hour limit overnight.Guide
  6. 06Germantown 50KSaturday, September 12, 2026Germantown, OhioA southwest Ohio trail 50K in its fourth decade, run as four loops of Germantown MetroPark through cedar forest, prairie, and Twin Creek hills.Guide
  7. 07Mogollon Monster 100Saturday, September 12, 2026Pine, ArizonaMogollon Monster 100 covers 102.3 rugged miles along Arizona's Mogollon Rim, with about 15,900 feet of climbing and a 38-hour limit in September.Guide
  8. 08Pine Creek Challenge 100 MileSaturday, September 12, 2026Wellsboro, PennsylvaniaPine Creek Challenge 100 Mile runs four passages through Pennsylvania's Pine Creek Gorge on a scenic, nontechnical and highly runnable rail-trail course.GuideResults
  9. 09Youngstown Ultra Trail ClassicSaturday, September 12, 2026Youngstown, OhioThe Youngstown Ultra Trail Classic has looped Mill Creek Park for about two decades, running a 50K on singletrack past gorges, lakes, and waterfalls.Guide
  10. 10The Rut 50KSunday, September 13, 2026Big Sky, MontanaThe Rut 50K climbs technical mountain terrain around Big Sky and Lone Peak, combining exposed scrambling, steep grades and a capped field each September.Guide
  11. 11TOR330 Tor des GéantsSunday, September 13, 2026Courmayeur, ItalyTor des Géants loops 330 kilometers around the Aosta Valley with 24,000 meters of climbing, no forced stages, mountain refuges, and a 150-hour limit.Guide
  12. 12Grindstone by UTMB 100MFriday, September 18, 2026Swoope, VirginiaGrindstone by UTMB 100M tackles 104 miles and nearly 21,000 feet of climbing through Virginia's technical Allegheny Mountains each September.Guide
  13. 13Julian Alps Trail Run 120KFriday, September 18, 2026Radovljica, SloveniaJulian Alps Trail Run 120K links Radovljica and Kranjska Gora over 124 kilometres, adding 5,893 metres of climbing and a 32-hour limit through Slovenia.Guide
  14. 14Run Rabbit Run 100 MileFriday, September 18, 2026Steamboat Springs, ColoradoRun Rabbit Run 100 combines a tough high-country loop around Steamboat Springs with separate Hare and Tortoise starts and a six-figure prize purse.Guide
  15. 15Barkley Fall Classic 50KSaturday, September 19, 2026Wartburg, TennesseeThe Barkley Fall Classic condenses Frozen Head's steep, rough backcountry character into a one-day 50K with a large but selective field in eastern Tennessee.Guide
  16. 16IMTUF 100Saturday, September 19, 2026McCall, IdahoIMTUF 100 is a rugged mountain hundred around McCall, combining remote Idaho singletrack, sustained climbing and a deeply established ultra community.GuideResults
  17. 17Mountain Lakes 100Saturday, September 19, 2026Olallie Lake, OregonMountain Lakes 100 circles remote Oregon lakes and Cascade forest on a mountain course known for runnable trail and sustained nighttime miles.GuideResults
  18. 18Paris Texas Marathon 100KSaturday, September 19, 2026Paris, TexasA flat rails-to-trails 100K that starts and ends at the Eiffel Tower replica in Paris, Texas, with 50K, marathon, and evening races the same day.Guide
  19. 19Pilot Mountain to Hanging Rock UltraSaturday, September 19, 2026Danbury, North CarolinaA point to point trail ultra across North Carolina's Sauratown Mountains, with a 50 mile flagship from Pilot Mountain to Hanging Rock and a 50K option.Guide
  21. 21Bear 100 MileFriday, September 25, 2026Logan, UtahBear 100 Mile runs point to point from Logan toward Bear Lake, with 22,816 feet of climbing, fall colors and a 36-hour mountain cutoff each autumn.Guide
  22. 22Nice Côte d'Azur by UTMB 100MFriday, September 25, 2026Nice, FranceNice Côte d'Azur by UTMB 100M drops from the Mercantour high country to the Mediterranean over 165 kilometres and 8,900 metres of gain over two days.Guide
  23. 23Sangre de Cristo Trail FestivalSaturday, September 26, 2026Westcliffe, ColoradoA high country trail festival on Colorado's Rainbow Trail, with a 104 mile flagship plus 100K, 50 mile, and 50K races from a ranch base near Westcliffe.Guide
  24. 24Sky Island Trail RaceSaturday, September 26, 2026Fort Davis, TexasSky Island sends 50K runners onto mile-high trails in the Davis Mountains near Fort Davis, with about 3,900 feet of climbing and long desert views.Guide
  25. 25SpartathlonSaturday, September 26, 2026Athens, GreeceSpartathlon follows Pheidippides' route for 246 kilometers from Athens to Sparta, with 75 checkpoints and an unforgiving 36-hour overall limit.Guide
  26. 26The Lakes TrailFestSaturday, September 26, 2026Palmer, AlaskaThe Lakes TrailFest closes Alaska's fall trail season with a 50K, 25K, 10K, and 5K on rolling wooded singletrack at Matanuska Lakes near Palmer.Guide
  27. 27Farm to Farm Ultra 50 MileSunday, September 27, 2026Freeport, MaineFarm to Farm's 50-mile loop race links Wolfe's Neck Center and conservation trails in Freeport, offering repeated aid access on mixed trail.Guide
  28. 28Vermont 50 Ultra RunSunday, September 27, 2026Brownsville, VermontVermont 50 Ultra Run covers fifty miles of private trails, woods roads and steep Green Mountain terrain around Mount Ascutney each early autumn.GuideResults
  29. 29Angeles Crest 100 Mile Endurance RunSaturday, October 3, 2026Altadena, CaliforniaAngeles Crest 100 is a Southern California mountain 100-miler through the San Gabriels, known for heat, altitude swings, and old-school endurance.GuideResults
  30. 30Arkansas Traveller 100Saturday, October 3, 2026Perryville, ArkansasArkansas Traveller 100 is a classic Ouachita endurance run over forest roads and trails, pairing a 100-mile course with a 30-hour limit in early October.GuideResults
  31. 31Cuyamaca 100KSaturday, October 3, 2026Julian, CaliforniaCuyamaca 100K traverses oak woodland, pine forest, chaparral and desert-edge trail near San Diego, with a 19-hour limit and live pods each October.GuideResults
  32. 32Hennepin Hundred 100 MileSaturday, October 3, 2026Sterling, IllinoisHennepin Hundred 100 Mile follows Illinois' historic canal trail from Sterling toward Colona on a flat, fast and highly runnable point-to-point route.GuideResults
  33. 33Ultra Pirineu 100KSaturday, October 3, 2026Bagà, SpainUltra Pirineu 100K loops through Cadí-Moixeró from Bagà, covering 100 kilometres with 6,600 metres of climbing and mostly trail terrain in the Pyrenees.Guide
  34. 34Whitefish Trail Blazer 50KSaturday, October 3, 2026Whitefish, MontanaAbout 6,300 feet of climbing carries this Montana 50K to the summit of Big Mountain, with proceeds funding Whitefish Trail building and upkeep.Guide
  35. 35HOKA Kodiak Ultra Marathons by UTMB 100MFriday, October 9, 2026Big Bear Lake, CaliforniaKodiak 100M circles Big Bear Valley over 100.6 mountain miles, reaching Sugarloaf and the Pacific Crest Trail with 15,912 feet of gain in October.Guide
  36. 36Moab 240Friday, October 9, 2026Moab, UtahMoab 240 makes one enormous 241.8-mile loop through Utah desert and two mountain ranges, with 31,892 feet of gain, sleep stations, and a 112-hour cutoff.Guide
  37. 37West Virginia TrilogyFriday, October 9, 2026Circleville, West VirginiaThe West Virginia Trilogy stacks a 50K, a 50 mile, and a half marathon across three October days on mountain trails near Spruce Knob in Circleville.Guide
  38. 38Yeti 100 Mile Endurance RunFriday, October 9, 2026Damascus, VirginiaYeti 100 Mile Endurance Run delivers a highly runnable rail-trail hundred through southwest Virginia, centered on the Virginia Creeper Trail.GuideResults
  39. 39CanLake Ultras 50 MileSaturday, October 10, 2026Canandaigua, New YorkA single road loop of Canandaigua Lake in peak fall color, the CanLake 50 mile has anchored Finger Lakes ultrarunning for more than two decades.Guide
  40. 40Le Grizz 50 Mile UltramarathonSaturday, October 10, 2026Polebridge, MontanaRun since 1982 on the gravel North Fork Road along the west edge of Glacier National Park, Le Grizz is one of the oldest 50 mile ultras in the country.Guide
  41. 41Oil Creek 100 MileSaturday, October 10, 2026Titusville, PennsylvaniaOil Creek 100 Mile repeats rugged Gerard Hiking Trail loops near Titusville, accumulating about 17,627 feet of gain under a 32-hour cutoff each year.Guide
  42. 42Ruth Anderson Memorial Endurance RunSaturday, October 10, 2026San Francisco, CaliforniaA choose-your-distance ultra on a certified 4.5-mile Lake Merced loop, where runners hit 50K and decide on the spot whether to press on to 50 miles.Guide
  43. 43The Mammoth Trail RunSaturday, October 10, 2026Glen Rose, TexasThe Mammoth Trail Run puts a 100K and 50K on steep, rocky ranch trails near Glen Rose, Texas, with a 26 hour cutoff that runs deep into the night.Guide
  44. 44Wolverine State 100Saturday, October 10, 2026Petoskey, MichiganA point to point 100 miler across northern Michigan, running Petoskey to Alpena from Lake Michigan to Lake Huron, with 100K, 50K, and relay options.Guide
  45. 45Diagonale des FousThursday, October 15, 2026Saint-Pierre, FranceDiagonale des Fous crosses Réunion from Saint-Pierre to Saint-Denis over 175 kilometers and 10,500 meters of climbing through volcanic terrain.Guide
  46. 46Delaware River Loop Series 100KSaturday, October 17, 2026Titusville, New JerseyRepeated canal-side circuits build this 100K in Titusville, creating a crew-friendly Delaware River ultra with simple logistics and steady pacing.Guide
  47. 47Galveston Ultra Trail 50KSaturday, October 17, 2026Galveston, TexasHard-packed sand replaces singletrack in this point-to-point 50K along the Galveston Island shoreline, run west to east with sunrise over the Gulf.Guide
  48. 48Lake Hodges Trail Festival 50KSaturday, October 17, 2026San Diego, CaliforniaA runnable San Diego 50K on wide dirt trails along Lake Hodges, with the Raptor Ridge climb faced twice on an approachable first-ultra course.Guide
  49. 49Salomon Cappadocia Ultra-TrailSaturday, October 17, 2026Ürgüp, TürkiyeSalomon Cappadocia Ultra-Trail covers 119K through Urgup's valleys and plateaus, mixing runnable trail with a full day of climbing around Cappadocia.Guide
  50. 50Sinnemahone Ultra Trail Run 50KSaturday, October 17, 2026Emporium, PennsylvaniaDeep in the PA Wilds, this 50K links rail trail, dirt road, and Elk State Forest running from Emporium, with 25K and 12K races on the same day.Guide
  51. 51Grand Trail des Templiers 80KSunday, October 18, 2026Millau, FranceGrand Trail des Templiers covers 80.7 kilometres and 3,443 metres of climbing across the rugged limestone plateaus and valleys around Millau.GuideResults
  52. 52Huntsville Runfest 50KSaturday, October 24, 2026Gurley, AlabamaTwo laps of a climbing 25K loop give this north Alabama trail 50K over 5,000 feet of gain on Two Mountain Trail singletrack above McMullen Cove.Guide
  53. 53Prisoner of War 50KSaturday, October 24, 2026Spartanburg, South CarolinaA trail 50K on the grounds of Camp Croft, the WWII infantry training center turned state park, built as a tribute to prisoners of war and veterans.Guide
  54. 54Hixon 50Sunday, October 25, 2026La Crosse, WisconsinHixon 50 sends ultrarunners up La Crosse's river bluffs twice, packing roughly 8,000 feet of climbing into a 50K of singletrack above the Mississippi.Guide
  55. 55Kullamannen by UTMB Ultra 100 MilesFriday, October 30, 2026Höganäs, SwedenKullamannen Ultra 100 Miles runs 173 kilometres across southern Sweden's rocky coasts and reserves in darkness, wind and autumn weather in late October.GuideResults
  56. 56Mallorca by UTMB Serra de TramuntanaFriday, October 30, 2026Sóller, SpainMallorca by UTMB's Serra de Tramuntana crosses 138K of dry-stone paths, limestone ridges, and village mountain terrain between coast and Port de Soller.Guide
  57. 57Javelina JundredSaturday, October 31, 2026Fountain Hills, ArizonaJavelina Jundred is a desert 100-miler at McDowell Mountain, blending rolling Sonoran singletrack, loops, heat management, and a party finish.GuideResults
  58. 58Naatsisaan Ultra 50KSaturday, October 31, 2026Navajo Mountain, UtahNaatsisaan's 50K arcs around Lost Mesa from Navajo Mountain High School, combining dirt road, old doubletrack and trail in Diné Bikéyah in remote Utah.Guide
  59. 59Ozark Trail 100 Mile Endurance RunSaturday, October 31, 2026Steelville, MissouriOzark Trail 100 Mile Endurance Run crosses 101 miles of Mark Twain National Forest on remote singletrack with about 12,000 feet of rugged climbing.GuideResults
  60. 60Pinhoti 100Saturday, November 7, 2026Sylacauga, AlabamaPinhoti 100 follows a rugged point-to-point line across Alabama's highest terrain, combining long singletrack, jeep roads and rocky forest ridges.GuideResults
  61. 61Rio Del Lago 100 MileSaturday, November 7, 2026Folsom, CaliforniaRio Del Lago 100 Mile starts at Beal's Point and crosses Sierra foothill trails east of Sacramento, returning for its twenty-fifth running each November.GuideResults
  63. 63TransLantau100 by UTMBFriday, November 13, 2026Mui Wo, Hong KongTransLantau100 by UTMB crosses 104 kilometres and 4,500 metres of steep climbing through Lantau Island's remote country parks from coastal Mui Wo.GuideResults
  64. 64RYR Endurance 50KSaturday, November 14, 2026Owensboro, KentuckyA flat 50K on paved greenway loops in Owensboro, Kentucky, with aid roughly every mile, easy crew access, and a weekend of shorter distances.Guide
  65. 65Tunnel Hill 100 MileSaturday, November 14, 2026Vienna, IllinoisTunnel Hill 100 Mile uses the flat, fast Tunnel Hill State Trail in southern Illinois, a course known for elite times and record attempts each November.GuideResults
  66. 66Dinosaur Valley 100 MileSaturday, November 21, 2026Glen Rose, TexasDinosaur Valley 100 Mile loops through a North Texas state park, accumulating gradual climbs and technical fatigue across rocky, mixed trail.GuideResults
  67. 67Hit The Road, Jack! 50KSaturday, November 21, 2026Carthage, MissouriMissouri's RRCA 50K state championship runs out-and-back on the flat, shaded Ruby Jack rail-trail in Carthage, with certified splits and cash prizes.Guide
  68. 68JFK 50 MileSaturday, November 21, 2026Boonsboro, MarylandJFK 50 Mile blends rocky Appalachian Trail, flat C&O Canal towpath, and rolling Maryland roads in one of America's oldest and fastest ultramarathons.Guide
  69. 69Ultra-Trail Cape Town UT100Saturday, November 21, 2026Cape Town, South AfricaUltra-Trail Cape Town UT100 front-loads two major climbs on a 99.1K Table Mountain loop with technical trail, 5,000 meters of gain, and a 26-hour limit.Guide
  70. 70Colorado River Run 100 MileFriday, November 27, 2026Marble Falls, TexasA Thanksgiving weekend trail ultra at Turkey Bend on the Texas Colorado River, running 100 mile and 50 mile races before Saturday's 50K and marathon.Guide
  71. 71KosciMiler by UTMBFriday, November 27, 2026Jindabyne, AustraliaKosciMiler by UTMB covers 161 kilometres and 5,131 metres of climbing through Australia's rugged Snowy Mountains and over high Mount Kosciuszko.GuideResults