Distance
Terrain
- 100K
Sean O'Brien 100K
🇺🇸 Calabasas, CAJan 30, 2027 · Start time not yet announced100K (61.7 mi)Distance+13,179 ftGainNo official tracking - Golden Ticket100K
Black Canyon 100K
🇺🇸 Mayer, AZFeb 13, 2027 · Start time not yet announced100KDistanceSplits open race morning - 50K
Black Canyon 50K
🇺🇸 Mayer, AZFeb 14, 2027 · Start time not yet announced50KDistanceSplits open race morning - Legendary100 Mile
Barkley Marathons
🇺🇸 Frozen Head State Park, TNMar 1, 2027 · Start time not yet announced"100 Mile" (nominally; contested)Distance+60,000 ftGainUpdates begin race morning - 50 Mile
Mesquite Canyon 50 Mile
🇺🇸 Waddell, AZMar 13, 2027 · Start time not yet announced50 MileDistance+7,725 ftGainSplits open race morning - LegendaryMulti-Stage
Marathon des Sables
🇲🇦 Ouarzazate / Errachidia region, MAApr 2, 2027 – Apr 12, 2027 · Start time not yet announced~250 km over 6 stagesDistanceTracking opens race morning - Major200+ Mile
Cocodona 250
🇺🇸 Black Canyon City → Flagstaff, AZMay 2, 2027 – May 7, 2027 · Start time not yet announced253.5 MileDistanceTracking opens race morning - 50K
Broken Arrow Skyrace 46K
🇺🇸 Olympic Valley, CAJun 19, 2027 · Start time not yet announced46KDistanceNo official tracking - Major100 Mile
Western States 100
🇺🇸 Olympic Valley, CAJun 26, 2027 – Jun 27, 2027 · Start time not yet announced100.2 MileDistance+18,000 ftGainTracking opens race morning - Legendary100 Mile
Hardrock 100
🇺🇸 Silverton, COJul 9, 2027 – Jul 11, 2027 · Start time not yet announced100.5 MileDistance+33,000 ftGainTracking opens race morning - Legendary100 Mile
Badwater 135
🇺🇸 Death Valley → Mt. Whitney Portal, CAJul 19, 2027 – Jul 21, 2027 · Start time not yet announced135 MileDistanceSplits open race morningCoverage: AdventureCORPS live coverage - 50K
Harding Hustle 50K
🇺🇸 Modjeska Canyon, CAJul 24, 2027 · Start time not yet announced50KDistance+5,926 ftGainSplits open race morning - 200+ Mile
Bigfoot 200
🇺🇸 Mount St. Helens, WAAug 13, 2027 – Aug 17, 2027 · Start time not yet announced200 MileDistanceTracking opens race morning - Major100 Mile
Leadville Trail 100 Run
🇺🇸 Leadville, COAug 21, 2027 · Start time not yet announced100 MileDistance+15,600 ftGainTracking opens race morning - 100 Mile
TDS
🇮🇹 Courmayeur → Chamonix, ITAug 23, 2027 · Start time not yet announced~148 km / 92 miDistance+30,512 ftGainTracking opens race morning - 50K
MCC
🇨🇭 Martigny-Combe → Chamonix, CHAug 23, 2027 · Start time not yet announced~40 km / 25 miDistance+7,710 ftGainTracking opens race morning - 50K
OCC
🇨🇭 Orsières → Chamonix, CHAug 26, 2027 · Start time not yet announced~57 km / 35 miDistance+11,483 ftGainTracking opens race morning - Major100 Mile
UTMB
🇫🇷 Chamonix, FRAug 27, 2027 · Start time not yet announced~176 km / 109 miDistance+32,808 ftGainTracking opens race morningCoverage: UTMB Live - 100K
CCC
🇫🇷 Courmayeur → Chamonix, FRAug 27, 2027 · Start time not yet announced~101 km / 63 miDistance+19,849 ftGainTracking opens race morning - 100 Mile
Saddles 100
🇺🇸 Prescott, AZOct 2, 2027 · Start time not yet announced100 MileDistanceNo official tracking - 100 Mile
Angeles Crest 100
🇺🇸 Altadena, CAOct 2, 2027 · Start time not yet announced100.8 MileDistanceSplits open race morning - 200+ Mile
Moab 240
🇺🇸 Moab, UTOct 8, 2027 – Oct 12, 2027 · Start time not yet announced241.8 MileDistanceTracking opens race morning - 100 Mile
Kodiak 100
🇺🇸 Big Bear Lake, CAOct 8, 2027 · Start time not yet announced100 MileDistanceTracking opens race morning - MajorBackyard
Big's Backyard Ultra
🇺🇸 Bell Buckle, TNOct 16, 2027 · Start time not yet announcedLast Man Standing (4.167 mi / yard)DistanceStream opens race morningCoverage: YouTube livestream