| 01 Jan 2021 |
Tuscobia Winter Ultra (80 Miles) |
Park Falls, Wisconsin, United States |
| 01 Jan 2021 |
Snowdonia Slate Trail Ultra (90 Miles) |
Abercegin, Wales, United Kingdom |
| 09 Jan 2021 |
Avalon 50k/50m (50K|50 Miler) |
Avalon, California, United States |
| 09 Jan 2021 |
Sean O'Brien 50k/26.2/30k (50K|30K|26.2) |
Malibu, California, United States |
| 09 Jan 2021 |
La Cuesta Ranch Trail Run (25K|50K) |
San Luis Obispo, California, United States |
| 09 Jan 2021 |
Bandera Endurance Run (50k|100k) |
Bandera, Texas, United States |
| 16 Jan 2021 |
Long Haul 100 (100 Miler) |
Ehren, Florida, United States |
| 16 Jan 2021 |
HURT 100 (HURT 100 Miler) |
Honolulu, Hawaii, United States |
| 16 Jan 2021 |
Coldwater Rumble (100 Miler|52K) |
Goodyear, Arizona, United States |
| 16 Jan 2021 |
Frozen H3 (100 Miler) |
Charleston, South Carolina, United States |
| 17 Jan 2021 |
Carlsbad Full & Half Marathon (Half Marathon) |
Carlsbad, California, United States |
| 17 Jan 2021 |
Chevron Houston Marathon (Marathon) |
Houston, Texas, United States |
| 17 Jan 2021 |
Fins, Flippers, & Fun 5K (5K) |
Ventura, California, United States |
| 23 Jan 2021 |
Winter Wychavon Way (40 Miles) |
Wychavon, England, United Kingdom |
| 23 Jan 2021 |
Hella Cold Half (13.1) |
Shorewood Hills, Wisconsin, United States |
| 23 Jan 2021 |
Hella Cold Half (2) (13.1) |
Shorewood Hills, Wisconsin, United States |
| 25 Jan 2021 |
Arrowhead 135 (135M Veteran) |
International Falls, Minnesota, United States |
| 29 Jan 2021 |
Arc of Attrition (100 Miles) |
Coverack, England, United Kingdom |
| 30 Jan 2021 |
AZT Oracle Rumble (1/2 Marathon|50K) |
Oracle, Arizona, United States |
| 05 Feb 2021 |
Grandmaster Ultras (100 Miler) |
Littlefield, Arizona, United States |
| 05 Feb 2021 |
Round Hertfordshire Run (275Km) |
Bishop's Stortford, Hertfordshire, United Kingdom |
| 06 Feb 2021 |
Redondo Beach Superbowl 10k/5k (10k|5k) |
Redondo Beach, California, United States |
| 06 Feb 2021 |
Mill Stone 50K (50K) |
Fort Mill, South Carolina, United States |
| 06 Feb 2021 |
Sean O'Brien 100K/50M (100K|50 Miler) |
Calabasas, California, United States |
| 06 Feb 2021 |
Death Valley Marathon, Half, & 10K (Half Marathon|Marathon) |
Death Valley, California, United States |
| 06 Feb 2021 |
Rocky Roccoon (100 Miles) |
Moore Grove, Texas, United States |
| 06 Feb 2021 |
Beast of Burden (Winter) (100 Miler) |
Lockport, New York, United States |
| 07 Feb 2021 |
Surf City USA (Half Marathon|Marathon) |
Huntington Beach, California, United States |
| 13 Feb 2021 |
Susitna 100 (100 Miles) |
Big Lake, Alaska, United States |
| 13 Feb 2021 |
Beyond Limits (100 Miler) |
Henderson, Nevada, United States |
| 13 Feb 2021 |
Outlaw 100 Oklahoma (50 Miler) |
Latimer County, Oklahoma, United States |
| 13 Feb 2021 |
Black Canyon Ultras (60K|100K) |
Spring Valley, Arizona, United States |
| 13 Feb 2021 |
Moab's Red Hot 50+ (55K|33K) |
Moab, Utah, United States |
| 13 Feb 2021 |
Tarawera Ultramarathon (21k|50k|100 Miles|102k) |
Rotorua, Bay of Plenty, New Zealand |
| 13 Feb 2021 |
Sean O'Brien 50k/26.2/30k (50K|30K|Marathon) |
Malibu, California, United States |
| 20-21 Feb 2021 |
Grit OCR (Claw - 8-Miles|Fang - 5-Miles) |
Santa Clarita, California, United States |
| 20-21 Feb 2021 |
FOURmidable (35.5K|50K) |
Auburn, California, United States |
| 26 Feb 2021 |
Run Ridge Run 13km (13km) |
Port Moody, British Columbia, Canada |
| 26 Feb 2021 |
Lake Ouachita Vista Trail (100 Miler) |
Joplin, Arkansas, United States |
| 27 Feb 2021 |
Mt. Mitchell Challenge & Black Mountain Marathon (Marathon|40 Miler) |
Black Mountain, North Carolina, United States |
| 27 Feb 2021 |
Red Dirt Ultra (100 Miler|100K) |
Lotus, Louisiana, United States |
| 06 Mar 2021 |
Elder Creek Trail Runs 50m/100k/100m/24hrs (100 mile (24 hour)|100k|50 mile|30k|50k) |
Riverside County, California, United States |
| 06 Mar 2021 |
Mesquite Canyon Trail Runs (1/2 Marathon|50K|30K|50 Miler|8K) |
Waddell, Arizona, United States |
| 06 Mar 2021 |
Singletrack Stampede (22K|42K) |
Calabasas, California, United States |
| 06 Mar 2021 |
The Ranch 50k (50k|1/2 Marathon) |
Escondido, California, United States |
| 07 Mar 2021 |
Napa Valley Marathon & Half (Marathon) |
Napa Valley, California, United States |
| 08 Mar 2021 |
Leatherman's Loop (10k) |
Ward Pound Ridge Reservation, New York, United States |
| 10 Mar 2021 |
San Diego Half Marathon (Half Marathon) |
San Diego, California, United States |
| 13 Mar 2021 |
Seneca Creek Greenway Trail Marathon, 50K & Relay (50k) |
Gaithersburg, Maryland, United States |
| 13 Mar 2021 |
Cactus Rose Ultra (100 Miles) |
Bandera County, Texas, United States |
| 13 Mar 2021 |
Sean O'Brien 100K/50M (100K|50 Miler) |
Calabasas, California, United States |
| 20 Mar 2021 |
Golden Gate Headlands (Half Marathon|Marathon) |
Sausalito, California, United States |
| 20 Mar 2021 |
END-SURE (100 Miler) |
Power, North Dakota, United States |
| 20 Mar 2021 |
Trail Running Mallorca: Crossing the Tramuntana (Multi-Stage) |
Calvià, Balears Province, Spain |
| 20 Mar 2021 |
Ohio's Backyard Ultra (Last Person Standing - Night Course|Last Person Standing|Last Person Standing - Day Course) |
Lucasville, Ohio, United States |
| 20 Mar 2021 |
Lake Martin 100 (50 Miler|100 Miler) |
Tallapoosa County, Alabama, United States |
| 20 Mar 2021 |
Northburn 100 (100 Miles) |
Pisa Moorings, Auckland, New Zealand |
| 21 Mar 2021 |
Tyger Run/Walk (10km) |
Tyger Valley, Western Cape, South Africa |
| 21 Mar 2021 |
Los Angeles Marathon (Marathon) |
Los Angeles, California, United States |
| 21 Mar 2021 |
Chuckanut 50k (50k) |
Bellingham, Washington, United States |
| 26 Mar 2021 |
Badger Mountain Challenge (100 Miler|50 Miler) |
Richland, Washington, United States |
| 26 Mar 2021 |
Greenbrier Ultras (100 Mile Endurance Run) |
Greenbrier, Maryland, United States |
| 26 Mar 2021 |
Antelope Island Buffalo Run (100 Miler) |
Syracuse, Utah, United States |
| 26 Mar 2021 |
Dublin to Belfast (173 km) |
Dublin, Leinster, Ireland |
| 27 Mar 2021 |
VALENCIA Trail Race (10K|Half Marathon|50K) |
Valencia, California, United States |
| 27 Mar 2021 |
Prairie Spirit Trail (100 Miler) |
Ottawa, Kansas, United States |
| 27 Mar 2021 |
Crown King Scramble (50K) |
Phoenix, Arizona, United States |
| 27 Mar 2021 |
Georgia's Death Race (68 miler) |
Blairsville, Georgia, United States |
| 27 Mar 2021 |
Behind the Rocks (30K|50 Miler|50K) |
Moab, Utah, United States |
| 27 Mar 2021 |
NJ Ultra Festival (100 Miles) |
Hardwick Center, New Jersey, United States |
| 27 Mar 2021 |
Run Sunset Beach (5K|Half Marathon) |
Sunset Beach, North Carolina, United States |
| 27 Mar 2021 |
Blackbeard's Revenge (100 Miler) |
Corrolla, North Carolina, United States |
| 27 Mar 2021 |
Umstead 100 (100 Miles) |
Raleigh, North Carolina, United States |
| 27 Mar 2021 |
GORTEX Grand Traverse (Grand Traverse) |
Crested Butte, Colorado, United States |
| 01 Apr 2021 |
St. George Marathon (Marathon) |
St. George, Utah, United States |
| 03 Apr 2021 |
Ramblas Run (1/2 Marathon) |
San Juan Capistrano, California, United States |
| 03 Apr 2021 |
Brazos Bend (50 Miler|25K|50K) |
Needville, Texas, United States |
| 03 Apr 2021 |
Singletrack Stampede (42K|22K) |
Calabasas, California, United States |
| 08 Apr 2021 |
Beyond Limits Ultra (100 Miler) |
Henderson, Nevada, United States |
| 09 Apr 2021 |
Zumbro Endurance Run (100 Miler) |
Theilman, Minnesota, United States |
| 10 Apr 2021 |
Zion Ultras (50 K|Half Marathon|100 Mile|100 K) |
Virgin, Utah, United States |
| 10 Apr 2021 |
The PSC Race (PARK COMPLEX 21 k|PARK COMPLEX 10k|PARK COMPLEX 5k) |
Elarduspark, Pretoria, GT, South Africa |
| 10 Apr 2021 |
Arts Run (10K|5K|Kids Dash) |
Santa Clarita, California, United States |
| 10 Apr 2021 |
Potowatomi (50 Miler) |
Pekin, Illinois, United States |
| 10 Apr 2021 |
Rattler Trail Races (25K|10K) |
Colorado Springs, Colorado, United States |
| 10-11 Apr 2021 |
FOURmidable (50K|35.5K) |
Auburn, California, United States |
| 10-11 Apr 2021 |
Lake Sonoma 50 (50 Miler|100k) |
Healdsburg, California, United States |
| 10-17 Apr 2021 |
Whiskey Basin Trail Runs (31k|88K|57k) |
Prescott, Arizona, United States |
| 10 Apr 2021 |
South Downs Way 50 (50 Miles) |
Worthing, England, United Kingdom |
| 10 Apr 2021 |
Winter Warrior Finland (Warrior Squad / Race Squad|Challenge) |
Ylläs, LL, Finland |
| 10 Apr 2021 |
Oriflamme 50k (50km) |
Julian, California, United States |
| 11 Apr 2021 |
Reno Connector Run (10K) |
Reno, Nevada, United States |
| 11 Apr 2021 |
Peterson Ridge Rumble (20 Miler|40 Miler) |
Sisters, Oregon, United States |
| 16 Apr 2021 |
Double Top 100 Stone Anvil (100 Miler) |
Hasslers Mill, Georgia, United States |
| 17 Apr 2021 |
Northern Traverse (190 Miles) |
Copeland, England, United Kingdom |
| 17 Apr 2021 |
Mad City Ultras (100k|50k) |
Madison, Wisconsin, United States |
| 18 Apr 2021 |
Bend Marathon (Marathon) |
Bend, Oregon, United States |
| 18 Apr 2021 |
Vancouver Sun Run (10 K) |
Vancouver, British Columbia, Canada |
| 18 Apr 2021 |
Farmdale 100 (100 Miler) |
East Peoria, Illinois, United States |
| 23 Apr 2021 |
Jackpot Ultra Running Festival (100 Mile USATF) |
Henderson, Nevada, United States |