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 146 races in this collection. Updated September 2026.

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

  1. Bear 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.Results
  2. Karkloof 100 MilerFriday, September 25, 2026Karkloof, South AfricaA runnable out-and-back through Karkloof forests and farmland gives South African 100-mile runners generous aid access and a firm 36-hour cutoff.
  3. Nice 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.Results
  4. Tullner Lauftage 48 HourFriday, September 25, 2026Tulln an der Donau, AustriaTimed raceTullner Lauftage's 48-hour race circles a lit asphalt loop beside the Aubad lake, rewarding steady pacing, crew routines, and overnight resilience.
  5. Hinson Lake 24 Hour Ultra ClassicSaturday, September 26, 2026Rockingham, North CarolinaTimed raceA low-cost 24-hour classic circles Hinson Lake on a certified 1.5032-mile trail loop, with chip-timed laps, wooded shade, and a deep waitlist.Results
  6. Lisboa Backyard UltraSaturday, September 26, 2026Lisbon, PortugalBackyard ultraLisboa Backyard Ultra turns Monsanto Forest Park into an hourly 6.706 km proving ground, combining city access with a wooded endurance setting.
  7. Sangre 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.
  8. Sky 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.Results
  9. SpartathlonSaturday, September 26, 2026Athens, GreeceSpartathlon follows Pheidippides' route for 246 kilometers from Athens to Sparta, with 75 checkpoints and an unforgiving 36-hour overall limit.Results
  10. The 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.Results
  11. Australian 6 Day UltraSunday, September 27, 2026Paradise, AustraliaTimed raceThe Australian 6 Day Ultra turns a short Thorndon Park loop into 144 hours of pacing, fueling, sleep management, and distance accumulation near Adelaide.
  12. Farm 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.
  13. Vermont 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.Results
  14. Chihuahua by UTMB Rarámuri 100MThursday, October 1, 2026Cerocahui, MexicoRarámuri 100M sends runners 135 kilometres through Mexico's remote Copper Canyon, pairing 6,700 metres of climbing with a demanding 32-hour cutoff.
  16. Infinity Trail Backyard Île d'AixFriday, October 2, 2026Île-d'Aix, FranceBackyard ultraInfinity Trail Île d'Aix sends hourly yards around a car-light Atlantic island, mixing coastal tracks, sand, roads, bridges, and historic walls.
  17. TransJeju by UTMB Jeju100MFriday, October 2, 2026Seogwipo, South KoreaJeju100M covers 148 kilometers of volcanic mountain terrain, pairing a nighttime start and Mount Halla summit with 5,000 meters of gain and 37 hours.
  18. Angeles 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.Results
  19. Arkansas 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.Results
  20. BB Backyard UltraSaturday, October 3, 2026Sudbury, CanadaBackyard ultraNorthern Ontario's established backyard race uses an all-trail 6.7K loop at Kivi Park, restarting each hour until the final runner completes a yard alone.Results
  21. Cuyamaca 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.Results
  22. Hennepin 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.Results
  23. Manotick Backyard UltraSaturday, October 3, 2026Manotick, CanadaBackyard ultraRoad and trail yards through Manotick restart every hour in this sold-out backyard race, where there is no fixed finish distance and only one winner.Results
  24. Ultra 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.
  25. Whitefish 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.
  26. HOKA 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.
  27. Moab 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.
  28. West 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.
  29. Yeti 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.Results
  30. CanLake 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.
  31. Le 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.
  32. Oil 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.
  33. Ruth 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.
  34. The 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.
  35. UTACCH Quya Ultra Trail 100 MileSaturday, October 10, 2026Villa Yacanto, ArgentinaA high-elevation 100-mile crossing of the Sierras Grandes climbs Cerro Champaqui and remote ridges, with 42 hours and limited outside support.
  36. Wolverine 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.
  37. Hasetsune CupSunday, October 11, 2026Akiruno, JapanA 71.5 km mountain endurance race through Tokyo's Okutama ridges, starting in the afternoon and pushing most runners deep into the night on steep trail.Results
  38. Diagonale 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.
  39. Skanderborg Ultra 48 HourFriday, October 16, 2026Skanderborg, DenmarkTimed raceDenmark's dedicated 48-hour race circles a one-kilometer course in Skanderborg, giving runners continuous timing and close access to their crews.
  40. Ultra-Trail Mount Yun UMY 100MFriday, October 16, 2026Xiangning, ChinaMount Yun UMY 100M crosses 161 kilometres where the Loess Plateau meets the Taiyue Mountains, with 6,500 metres of ascent and a 48-hour cutoff.Results
  41. Austria Backyard Ultra Seekirchen/WallerseeSaturday, October 17, 2026AustriaBackyard ultraA flat lakeside backyard course at Seekirchen sends its open field through a 6.706K gravel-and-asphalt yard alongside a separate world team event.
  42. Backyard Ultra Valais Autumn Edition: INFINITYSaturday, October 17, 2026Saillon, SwitzerlandBackyard ultraAn hourly 6.7056 km backyard race in Saillon adds a defined 38-loop ceiling, combining last-runner-standing tactics with a fixed upper limit.
  43. Big Dog's Backyard UltraSaturday, October 17, 2026Bell Buckle, TennesseeBackyard ultraThe original backyard ultra alternates global team and individual championships on Laz Lake's Tennessee course, where every hour demands another yard.
  44. Big Dog's Satellite Championships: Team AustraliaSaturday, October 17, 2026Perth, AustraliaBackyard ultraAustralia's satellite championship brings a 15-runner national field to Perth for hourly yards across trail, grass, and asphalt under the bell.
  45. Big Dog's Satellite Championships: Team BelgiumSaturday, October 17, 2026Retie, BelgiumBackyard ultraTeam Belgium returns to Retie for a 15-runner satellite championship shaped by hourly strategy, team scoring, and deep-yard ambition on forest paths.
  46. Big Dog's Satellite Championships: Team CanadaSaturday, October 17, 2026CanadaBackyard ultraCanada's satellite championship assembles a 15-runner national team for synchronized hourly yards, collective scoring, and a national title.
  48. Big Dog's Satellite Championships: Team FranceSaturday, October 17, 2026FranceBackyard ultraFrance's 15-runner satellite team contests an open-ended sequence of hourly yards, balancing national scoring with last-runner survival for the crown.
  49. Big Dog's Satellite Championships: Team GermanySaturday, October 17, 2026Simmerath, GermanyBackyard ultraGermany's national satellite championship shifts between day and night yards in Simmerath as 15 runners build a shared team score for the global table.
  50. Big Dog's Satellite Championships: Team GreeceSaturday, October 17, 2026Argostoli, GreeceBackyard ultraGreece's national championship brings 15 selected runners to Kefalonia for hourly trail-and-tarmac yards and synchronized team scoring on an island course.
  51. Big Dog's Satellite Championships: Team JapanSaturday, October 17, 2026JapanBackyard ultraJapan's selected backyard team joins the synchronized global championship, chasing cumulative yards, a national title, and the road to Big's.
  52. Big Dog's Satellite Championships: Team NetherlandsSaturday, October 17, 2026Leersum, NetherlandsBackyard ultraThe Netherlands fields 15 selected runners in Leersum, where a repeated hourly yard feeds both the Dutch score and the national-title race outright.
  54. Big Dog's Satellite Championships: Team South AfricaSaturday, October 17, 2026Potchefstroom, South AfricaBackyard ultraSouth Africa's selected team gathers near Potchefstroom for hourly yards at Lekwena Wildlife Estate and a shared global championship score over many hours.
  55. Big Dog's Satellite Championships: Team SpainSaturday, October 17, 2026Cartagena, SpainBackyard ultraSpain's national team races low-climb gravel-and-asphalt yards in Cartagena, combining individual attrition with synchronized country scoring.
  56. Big Dog's Satellite Championships: Team SwedenSaturday, October 17, 2026Bromölla, SwedenBackyard ultraSweden's 15-runner national squad meets in Bromölla for repeating hourly yards, team points, and the individual last-runner title through autumn darkness.
  58. Blackall 100KSaturday, October 17, 2026Mapleton, AustraliaBlackall 100K crosses the Sunshine Coast hinterland on forest trail, deep gullies and exposed ridges, with a full day of climbing through changing terrain.
  59. Centurion Autumn 100Saturday, October 17, 2026Goring-on-Thames, United KingdomFour out-and-back spurs form this fast British trail 100, mixing the Thames Path and Ridgeway with darkness, damp ground and a strict 28-hour cutoff.
  60. Delaware 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.
  61. Galveston 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.
  62. Lake 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.
  63. Punk's Backyard UltraSaturday, October 17, 2026North MacedoniaBackyard ultraNorth Macedonia's national backyard championship sends runners onto a 6.706K mixed-terrain loop every hour until only one athlete can answer the bell.
  64. Salomon 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.
  65. Sinnemahone 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.
  66. Grand 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.Results
  67. Ultra X South Africa 330KMonday, October 19, 2026South AfricaA six-stage 330 km expedition through Western Cape valleys, vineyards, mountain passes, and Cederberg wilderness, with remote camps each night.
  68. Laufwochenende Brugg 48 HourFriday, October 23, 2026Brugg, SwitzerlandTimed raceA compact riverside loop in Brugg hosts Switzerland's 48-hour championship, where steady lap accumulation and efficient support define the race.
  69. Puglia by UTMB I Sassi di MateraFriday, October 23, 2026Matera, ItalyI Sassi di Matera crosses 144 kilometres from Matera's cave districts to the Ionian coast through limestone canyons, olive groves and scrub.Results
  70. Austria Backyard Ultra Thüringen/VorarlbergSaturday, October 24, 2026Thüringen, AustriaBackyard ultraVorarlberg's Austria Backyard Ultra repeats a 6.706-kilometer yard every hour from Thüringen, continuing through the night until one runner remains.
  71. Huntsville 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.
  72. Prisoner 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.
  73. Hixon 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.
  74. Himalayan 100 Mile Stage RaceThursday, October 29, 2026Maneybhanjang, IndiaThe Himalayan 100 Mile Stage Race crosses five high-altitude days near Darjeeling, mixing steep jeep roads, mountain huts, jungle descents, and thin air.Results
  75. Chartreuse Backyard UltraFriday, October 30, 2026Saint-Laurent-du-Pont, FranceBackyard ultraChartreuse Backyard repeats a flat riverside 6.706 km yard beneath the mountains, making a fast French silver race built for deep totals in cool weather.
  76. Kullamannen 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.Results
  77. Mallorca 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.
  78. Endure the Moor Backyard UltraSaturday, October 31, 2026Newcastle upon Tyne, United KingdomBackyard ultraEndure the Moor brings the backyard format to Newcastle's Town Moor, repeating a mixed 4.167-mile loop every hour until only one runner can answer the bell.
  79. Javelina 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.Results
  80. Manavgat Backyard UltraSaturday, October 31, 2026Manavgat, TürkiyeBackyard ultraAn hourly last-runner-standing race near Titreyengöl repeats a 6.706 km coastal pine-forest loop over firm sand, dirt, and short asphalt sections.Results
  81. Naatsisaan 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.
  82. Ozark 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.Results
  83. Ultra-Trail Shudao by UTMB DSD 100KFriday, November 6, 2026Guangyuan, ChinaShudao's 104 km race follows ancient stone roads and bamboo trails across northern Sichuan, with 3,800 metres of climbing and a 26-hour limit.
  84. Arrowtown Backyard UltraSaturday, November 7, 2026Arrowtown, New ZealandBackyard ultraArrowtown Backyard Ultra uses a scenic 6.71 km figure-eight beside the Arrow River and Bush Creek, with a compact historic town as its race base.
  85. Golspie Backyard UltraSaturday, November 7, 2026Golspie, United KingdomBackyard ultraGolspie Backyard Ultra circles woodland, coast and castle grounds every hour, with a cold-season Scottish course that continues until one runner remains.
  86. Pinhoti 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.Results
  87. Race for DFLSaturday, November 7, 2026Winchendon, MassachusettsBackyard ultraRace for DFL makes last place the goal on a 4.167-mile Massachusetts farm yard, mixing trail, gravel, grass, a bonfire, and community aid in one loop.
  88. Rio 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.Results
  90. Weserbergland Backyard UltraSaturday, November 7, 2026Höxter, GermanyBackyard ultraWeserbergland Backyard Ultra repeats a paved 6.706-kilometer loop from Höxter-Lütmarsen every hour until one runner alone completes a final yard.
  91. The Last Desert (Antarctica)Friday, November 13, 2026AntarcticaTimed raceAntarctica's variable-distance stage race scores the most ground covered across timed circuits, with ice, wind, and landing conditions reshaping each day.Results
  92. TransLantau100 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.Results
  93. BigFoot BackYard Ultra ChandigarhSaturday, November 14, 2026Chandigarh, IndiaBackyard ultraBigFoot Chandigarh brings the last-runner-standing format to the Shivalik foothills, with hourly 6.706 km yards and a developing Indian series.
  94. God's Own Backyard Ultra FallSaturday, November 14, 2026Leeds, United KingdomBackyard ultraGod's Own Backyard Fall mixes Yorkshire canal, field, and woodland yards by day before shifting to a relentless tarmac towpath after dark near Leeds.
  95. HOKA Pacific Trails California by UTMB 50KSaturday, November 14, 2026Santa Barbara, CaliforniaA 51 km point-to-point trail across a private Santa Barbara ranch pairs 1,550 metres of climbing with oak canyons, ridgelines, and Pacific glimpses.
  96. RYR 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.
  97. Tunnel 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.Results
  98. UltraMARAthon 50KSaturday, November 14, 2026KenyaA single-day 50K crosses conservancy land in the northern Maasai Mara, pairing a remote figure-eight course with direct local conservation support.
  99. Desert UltraMonday, November 16, 2026NamibiaA self-sufficient 250 km stage race through Namibia's desert, crossing sand, dry riverbeds, scrub, and rock under extreme heat and cold over five stages.Results
  100. Authentic Pheidippides Run 485.3KThursday, November 19, 2026Athens, GreeceThe Authentic Pheidippides Run sends athletes from Athens to Sparta and back over 485.3K, with a 98-hour limit and open-road logistics across Greece.
  101. Patagonia Bariloche by UTMB TRONADOR 130KFriday, November 20, 2026San Carlos de Bariloche, ArgentinaTRONADOR 130K tours Patagonia's forests, lakes and Andean ridges around Bariloche, packing 6,516 metres of ascent into a 132-kilometre route.Results
  102. Backyard Ultra Last Samurai Standing TokyoSaturday, November 21, 2026Hachioji, JapanBackyard ultraLast Samurai Standing Tokyo repeats a forest-road 6.706 km yard from Takao Green Center, pairing a tiny field with cold overnight running near Mount Takao.
  103. Bislett 24-Hour Indoor ChallengeSaturday, November 21, 2026Oslo, NorwayTimed raceA sold-out 24-hour ultra on Bislett Stadium's 546.5-meter indoor track, with 150 lottery places and distance accumulating through a full day and night.Results
  104. Dinosaur 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.Results
  105. Hit 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.
  106. JFK 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.
  107. Ultra-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.
  108. Colorado 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.
  109. KosciMiler 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.Results
  110. ASICS SaintéLyon 80KSaturday, November 28, 2026Saint-Étienne, FranceASICS SaintéLyon 80K links Saint-Étienne and Lyon overnight across the Monts du Lyonnais, drawing nearly 8,000 runners to a storied winter classic.Results
  111. IAU 100 km World ChampionshipsLatest tracked: Sunday, September 20, 2026Ames, SpainNational teams race 100 km on a compact road circuit in Ames, bringing the IAU world championship to Galicia and rewarding disciplined pacing.
  112. Tango 100km UltramarathonLatest tracked: Sunday, September 20, 2026Kyotango, JapanA demanding 100K through coastal Kyoto combines early-morning waves, sustained road climbing, exposed weather, and a firm fourteen-hour limit.
  113. Trail Marathon Heidelberg - Heart Core TrailLatest tracked: Sunday, September 20, 2026Heidelberg, GermanyHeart Core Trail climbs through Heidelberg's wooded hills for 45 km, pairing roughly 2,019 metres of ascent with UTMB Index and iTRA relevance.
  114. Austria Backyard Ultra Kirchdorf in TirolStarted: Saturday, September 19, 2026Kirchdorf in Tirol, AustriaBackyard ultraAustria Backyard Ultra Kirchdorf runs a flat 6.706-kilometer riverside yard every hour, keeping crews close while the last runner standing decides the end.
  115. Barkley Fall Classic 50KLatest tracked: Saturday, 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.
  116. IMTUF 100Latest tracked: Saturday, September 19, 2026McCall, IdahoIMTUF 100 is a rugged mountain hundred around McCall, combining remote Idaho singletrack, sustained climbing and a deeply established ultra community.Results
  117. Lupatotissima 24 HourStarted: Saturday, September 19, 2026Verona, ItalyTimed raceA 24-hour road ultra on Verona's certified 1,525.48-meter circuit, where runners accumulate distance through a full day and night with steady pacing.Results
  118. Mountain Lakes 100Latest tracked: Saturday, 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.Results
  119. Muruvik Backyard UltraStarted: Saturday, September 19, 2026Malvik, NorwayBackyard ultraMuruvik repeats a flat 6.7 km path between Muruvik and Hommelvik, pairing record-friendly terrain with one of Norway's largest backyard fields.
  120. Paris Texas Marathon 100KLatest tracked: Saturday, 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.
  121. Pilot Mountain to Hanging Rock UltraLatest tracked: Saturday, 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.
  122. Grindstone by UTMB 100MLatest tracked: Friday, 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.Results
  123. Julian Alps Trail Run 120KLatest tracked: Friday, 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.Results
  124. Paraty Brazil by UTMB PTR 108Latest tracked: Friday, September 18, 2026Paraty, BrazilAtlantic Forest climbs, 4,850 meters of gain, and the historic Caminho do Ouro shape Paraty's 108K from the coast to Serra do Mar and its colonial center.Results
  125. Peak District Challenge Gold Ultra 100KLatest tracked: Friday, September 18, 2026Hathersage, United KingdomA self-navigated 100K challenge from Hathersage crosses 3,200 meters of Peak District climbing, with GPS tracking, staffed checkpoints and 24 hours.
  126. Run Rabbit Run 100 MileLatest tracked: Friday, 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.
  127. Vietnam Mountain Marathon 100 MileLatest tracked: Friday, September 18, 2026Sapa, VietnamVietnam's original 100-mile mountain race covers 161 km and 8,800 meters of gain between Sa Pa, high forest, grassland, and rice terraces in wet season.
  128. The Rut 50KLatest tracked: Sunday, 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.Results
  129. TOR330 Tor des GéantsLatest tracked: Sunday, 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.Results
  130. German 100K Road ChampionshipsLatest tracked: Saturday, September 12, 2026Berlin, GermanyGermany's national 100K road championship uses a flat five-kilometer circuit in Berlin, pairing elite championship racing with an open 100K field.Results
  131. Germantown 50KLatest tracked: Saturday, 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.Results
  132. Kaçkar by UTMB 100KLatest tracked: Saturday, September 12, 2026Ayder, TürkiyeOnly 82 kilometers long but packed with 5,600 meters of gain, Kaçkar's high passes, river crossings, and remote village trails make this a severe 100K.Results
  133. Malaysia Ultra-Trail by UTMB MY100Latest tracked: Saturday, September 12, 2026Taiping, MalaysiaNearly 100 kilometers through Taiping rainforest, steep staircases, creek crossings, and rough forest track make MY100 a humid, technical 32-hour ultra.Results
  134. Mogollon Monster 100Latest tracked: Saturday, 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.Results
  135. Pine Creek Challenge 100 MileLatest tracked: Saturday, 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.Results
  136. Ultra X England 110K Single StageLatest tracked: Saturday, September 12, 2026Edale, United KingdomThe single-stage Ultra X England covers 112 kilometers across Peak District ridges, moorland and limestone valleys, with more than 4,000 meters of climbing.Results
  137. Youngstown Ultra Trail ClassicLatest tracked: Saturday, 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.Results
  138. JD Ultra-Trail Great Wall by UTMB DGW100Latest tracked: Friday, September 11, 2026Zhangjiakou, ChinaA 100-kilometer route over Great Wall ruins, alpine grasslands, military tunnels, and old trade paths gives Zhangjiakou's DGW100 a rare historic profile.Results
  139. Rekener 24-Stunden-LaufStarted: Friday, September 11, 2026Reken, GermanyTimed raceA community 24-hour run on a 2.4 km loop in Klein Reken lets solo runners and teams accumulate distance while raising money for local causes.Results
  140. Superior 100 MileLatest tracked: Friday, 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.Results
  141. Ultra-Trail Harricana 125Latest tracked: Friday, 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.Results
  142. Wasatch Front 100Latest tracked: Friday, 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.Results
  143. Wild 110Latest tracked: Friday, 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.Results
  144. Fränkischer Backyard UltraStarted: Friday, September 4, 2026Lauf an der Pegnitz, GermanyBackyard ultraFränkischer Backyard Ultra repeats a hilly forest loop every hour until one runner remains, blending precise pacing, quick resets, and open-ended racing.Results
  145. EMU 6-Day RaceStarted: Thursday, September 3, 2026Balatonfured, HungaryTimed raceSix days on a certified asphalt loop reward steady pacing, sleep strategy, and crew discipline in one of Europe's established multiday races.Results
  146. SwissPeaks 170Latest tracked: Thursday, September 3, 2026Oberwald, SwitzerlandSwissPeaks 170 sends runners across roughly 168 kilometres of steep Valais mountain terrain, linking Oberwald with the shores of Lake Geneva.Results