| 02 Jan 2027 |
Tuscobia Winter Ultra (80 Miles) |
Park Falls, Wisconsin, United States |
| 08 Jan 2027 |
Frozen H3 (100 Miler) |
Charleston, South Carolina, United States |
| 09 Jan 2027 |
San Diego 50 & Trail Runs (Marathon/Relay|50 Miler|Heavy Half Marathon|10 Miler) |
San Diego, California, United States |
| 09 Jan 2027 |
Avalon 50k/50m (50K|50 Miler) |
Avalon, California, United States |
| 09 Jan 2027 |
Bandera Endurance Run (25k|100k|50k) |
Bandera, Texas, United States |
| 10 Jan 2027 |
Las Vegas Marathon (Marathon|Half|702 Race) |
Clark County, Nevada, United States |
| 16 Jan 2027 |
Coldwater Rumble (100 Miler) |
Goodyear, Arizona, United States |
| 16 Jan 2027 |
Long Haul 100 (100 Miler) |
Ehren, Florida, United States |
| 17 Jan 2027 |
Carlsbad Full & Half Marathon (Half Marathon) |
Carlsbad, California, United States |
| 17 Jan 2027 |
Rock 'n' Roll Las Vegas (Half Marathon) |
Clark County, Nevada, United States |
| 23 Jan 2027 |
Oddysey 2026 (112 km) |
Elgin, Western Cape, South Africa |
| 23 Jan 2027 |
Be Their Voice 5k (5k) |
Fayetteville, North Carolina, United States |
| 23 Jan 2027 |
La Cuesta Ranch Trail Run (25K|10K|50K) |
San Luis Obispo, California, United States |
| 23 Jan 2027 |
Sean O'Brien (30K|100K|50 Miler|50K|26.2) |
Calabasas, California, United States |
| 30 Jan 2027 |
AZT Oracle Rumble (1/2 Marathon|50K) |
Oracle, Arizona, United States |
| 30-31 Jan 2027 |
Life Time Miami Marathon (Marathon|Half Marathon|Tropical 5K) |
Miami, Florida, United States |
| 06 Feb 2027 |
Elephant Mountain Trail Runs (22K|35K|12K|50K|50 Miler) |
Cave Creek, Arizona, United States |
| 06 Feb 2027 |
Mill Stone 50K (50K) |
Fort Mill, South Carolina, United States |
| 6-13 Feb 2027 |
Black Canyon Ultras (100K|60K) |
Spring Valley, Arizona, United States |
| 12 Feb 2027 |
Jackpot Ultra Running Festival (100 Mile Short Course) |
Henderson, Nevada, United States |
| 13 Feb 2027 |
Ultra-Trail Austrailia (50k|100k) |
Katoomba, New South Wales, Australia |
| 13 Feb 2027 |
Outlaw 100 Oklahoma (50 Miler) |
Latimer County, Oklahoma, United States |
| 13 Feb 2027 |
The Ranch 50k (1/2 Marathon|50K) |
Escondido, California, United States |
| 13-14 Feb 2027 |
Chianti Ultra Trail (CMT46|UTCC120|CUT73|CHT20) |
Radda In Chianti, Tuscany, Italy |
| 13-20 Feb 2027 |
Red Dirt Ultra (100 Miler|100K) |
Lotus, Louisiana, United States |
| 20 Feb 2027 |
Victory (Half Marathon) |
Richmond, California, United States |
| 25-27 Feb 2027 |
TransGranCanaria (46K|21K|126K|84K) |
Agaeta, Las Palmas, Spain |
| 27 Feb 2027 |
Moab's Red Hot 50+ (55K|33K) |
Moab, Utah, United States |
| 27 Feb 2027 |
Novant Health Wilmington NC Marathon (5K|Half Marathon|Kids 1 mile Run|Marathon) |
Wrightsville Beach, North Carolina, United States |
| 27 Feb 2027 |
24/12/6 Hour @ Will Rogers (30k=9 loops |6/12/24 Hour|50k=14 loops |100 mile = 46 loops! |10k=3 loops |Half Marathon = 6 loops ) |
Pacific Palisades, California, United States |
| 27 Feb 2027 |
Lake Ouachita Vista Trail (100 Miler) |
Joplin, Arkansas, United States |
| 27 Feb 2027 |
SocalUltraTrail at Tejon Ranch (50k Ultra Trail|25k Trail|11k Trail|100k Ultra Trail) |
Lebec, California, United States |
| 06 Mar 2027 |
Rock/Creek Stump Jump (50K) |
Chattanooga, Tennessee, United States |
| 06 Mar - 03 Apr 2027 |
Lake Martin 100 (100 Miler|50 Miler) |
Tallapoosa County, Alabama, United States |
| 06 Mar 2027 |
Antelope Canyon (100 Miler) |
Page, Arizona, United States |
| 07 Mar 2027 |
Napa Valley Marathon & Half (Marathon) |
Napa Valley, California, United States |
| 07 Mar 2027 |
Life Time 305 Half Marathon (Half Marathon) |
Miami Beach, Florida, United States |
| 13 Mar 2027 |
Mesquite Canyon Trail Runs (50 Miler|8K|30K|1/2 Marathon|50K) |
Waddell, Arizona, United States |
| 13 Mar 2027 |
Catalina Island Marathon (5K|Marathon|10K) |
Avalon, California, United States |
| 19-21 Mar 2027 |
Big Alta (28K|50K|100K) |
Lucas Valley, California, United States |
| 20 Mar 2027 |
Northburn 100 (100 Miles) |
Pisa Moorings, Auckland, New Zealand |
| 20 Mar 2027 |
Ohio's Backyard Ultra (Last Person Standing - Day Course|Last Person Standing - Night Course) |
Lucasville, Ohio, United States |
| 20 Mar 2027 |
Georgia's Death Race (68 miler) |
Blairsville, Georgia, United States |
| 20 Mar 2027 |
American Bottoms 113 (56 Mile|113 Mile) |
Columbia, Illinois, United States |
| 20 Mar 2027 |
Blackbeard's Revenge (100 Miler) |
Corrolla, North Carolina, United States |
| 21 Mar 2027 |
Mountain to Fountain (15K) |
Maricopa County, Arizona, United States |
| 26 Mar 2027 |
Badger Mountain Challenge (100 Miler|50 Miler) |
Richland, Washington, United States |
| 27 Mar 2027 |
Crown King Scramble (50K) |
Phoenix, Arizona, United States |
| 02 Apr 2027 |
Sooke Hills Run (25K|50K) |
Sooke, British Columbia, Canada |
| 03 Apr 2027 |
Behind the Rocks (50 Miler|30K|50K) |
Moab, Utah, United States |
| 03 Apr 2027 |
REVEL Mt. Hood (Half Marathon|Marathon) |
Portland, Oregon, United States |
| 03 Apr 2027 |
Umstead 100 (100 Miles) |
Raleigh, North Carolina, United States |
| 03 Apr 2027 |
Incline Vista (20 Mile|Half Marathon) |
Deschutes County, Oregon, United States |
| 9-10 Apr 2027 |
The Canyons Endurance Runs (100M|100K|25K|50K) |
Foresthill, California, United States |
| 10 Apr 2027 |
South Downs Way 50 (50 Miles) |
Worthing, England, United Kingdom |
| 10 Apr 2027 |
Mad City Ultras (50k|100k) |
Madison, Wisconsin, United States |
| 11 Apr 2027 |
Athens Ohio Marathon and Half Marathon (Marathon|Half Marathon) |
Athens, Ohio, United States |
| 17-18 Apr 2027 |
Gorge Waterfalls (50K|100K) |
Cascade Locks, Oregon, United States |
| 17 Apr 2027 |
Hyner Trail Challenge (25K|50K) |
Hyner, Pennsylvania, United States |
| 17 Apr 2027 |
Silver Moon Race (100 Miles) |
Fresno County, California, United States |
| 17 Apr 2027 |
Chester Ultra 100 (100 Miles) |
Waverton, England, United Kingdom |
| 17 Apr 2027 |
Rattler Trail Races (25K|10K) |
Colorado Springs, Colorado, United States |
| 17 Apr 2027 |
Zane Grey (100K) |
Pine, Arizona, United States |
| 17 Apr 2027 |
Dunes 100 (100 Miler) |
Hell Gate, Florida, United States |
| 17 Apr 2027 |
Whiskey Basin Trail Runs (91K|1/2 Marathon|10K|60K|33K) |
Prescott, Arizona, United States |
| 17 Apr 2027 |
Leona Divide (50 Miler|100 Miler|100K|50K|30K) |
Lake Hughes, California, United States |
| 17-18 Apr 2027 |
Hogeye Marathon (5K|Half Marathon|Marathon|10K) |
Springdale, Arkansas, United States |
| 17 Apr 2027 |
Silver Moon Race (6-Hours|100-Miles|24-Hours|12-Hours) |
Reedley, California, United States |
| 18 Apr 2027 |
Mountains 2 Beach (Marathon|Half-Marathon) |
Ojai, California, United States |
| 18 Apr 2027 |
Devon Coast to Coast (117 Miles) |
South Hams, England, United Kingdom |
| 19 Apr 2027 |
Boston Marathon (Marathon) |
Boston, Massachusetts, United States |
| 25 Apr 2027 |
Big Sur International Marathon (Marathon) |
Big Sur, California, United States |
| 25 Apr 2027 |
Eugene Marathon (Marathon|Half) |
Eugene, Oregon, United States |
| 30 Apr 2027 |
Salt Flats Endurance Runs (100 Miler|50 Miler) |
Wendover, Utah, United States |
| 30 Apr 2027 |
San Diego 100 (100 Miler Crewed) |
Lake Cuyamaca, California, United States |
| 01 May 2027 |
Thames Path 100 (100 Miles) |
London, England, United Kingdom |
| 02 May 2027 |
Sisters Country (Half Marathon|50K) |
Sisters, Oregon, United States |
| 02 May 2027 |
Flying Pig Marathon (Marathon|Half|10K) |
Cincinnati, Ohio, United States |
| 3-7 May 2027 |
Cocodona (Sedona Canyons 125|Elden Crest 36|Cocodona 250) |
Rock Springs, Arizona, United States |
| 07 May 2027 |
Tillamook Burn Trail Run (50K) |
Tillamook State Forest, Oregon, United States |
| 08 May 2027 |
Yosemite Half Marathon (Half Marathon) |
Yosemite National Park, California, United States |
| 14 May 2027 |
Born to Run (100M) |
Santa Ynez, California, United States |
| 14 May 2027 |
UTAH 50 (UTAH 50) |
Kanab, Utah, United States |
| 14 May 2027 |
Infinitus (100 Miler) |
Goshen, Vermont, United States |
| 15 May 2027 |
O'Neill Park Trail Races (50k|30k|Half Marathon|10k|Marathon) |
Trabuco Canyon, California, United States |
| 15 May 2027 |
North Downs Way 50 (50 Miles) |
Waverley, England, United Kingdom |
| 16 May 2027 |
Life Time Chicago Spring Half Marathon + 10K (Half Marathon) |
Chicago, Illinois, United States |
| 21-23 May 2027 |
Coyote Two Moon (55K|100 Miler|100K|30K) |
Ojai, California, United States |
| 04 Jun 2027 |
Hell Hole Hundred (100M) |
Charleston, South Carolina, United States |
| 05 Jun 2027 |
Warhammer 100 (100 Miler) |
Slade, Kentucky, United States |
| 05 Jun 2027 |
River of No Return (53k) |
Challis City Park, Idaho, United States |
| 06 Jun 2027 |
Rock 'n' Roll San Diego (Half|Marathon) |
San Diego, California, United States |