| 19 Jul 2025 |
Tough Mugu (25k|5-Miler) |
Ventura County, California, United States |
| 19 Jul 2025 |
Speedgoat (50K) |
Snowbird, Utah, United States |
| 19 Jul 2025 |
Harding Hustle (30K|50K) |
Modjeska, California, United States |
| 20 Jul 2025 |
Kendall Mountain Run (12 Miler) |
Silverton, Colorado, United States |
| 25 Jul 2025 |
Speedgoat (50K) |
Snowbird, Utah, United States |
| 25 Jul 2025 |
Never Summer (100K) |
Gould, Colorado, United States |
| 26 Jul 2025 |
Rittman Chamber & Downtown Beautification Committee PJ 5k (1M|5k) |
Rittman, Ohio, United States |
| 26 Jul 2025 |
Hood Hundred (100 Miler) |
Hood River County, Oregon, United States |
| 26 Jul 2025 |
Tushars Mountain Runs (70K|1/2 Marathon|26.2 Miles|100K) |
Beaver County, Utah, United States |
| 26 Jul 2025 |
Snowdon Ultra (100 Miles|50 Miles) |
Betws Y Coed, Wales, United Kingdom |
| 26 Jul 2025 |
Grand Mesa Ultras (55K|50 Miler) |
Grand Mesa, Colorado, United States |
| 26 Jul 2025 |
Voyageur 50 Mile Trail Ultramarathon (50 Miler) |
Carlton, Minnesota, United States |
| 26 Jul 2025 |
Pikes Peak Ultra (50k|30k|50 Miler) |
Colorado Springs, Colorado, United States |
| 26 Jul 2025 |
Mighty Mosquito (Mighty Mosquito 100 Miler|Mini Mosquito 50k/ Team Relay) |
Mendon, New York, United States |
| 26 Jul 2025 |
Standhope (60K) |
Ketchum, Idaho, United States |
| 26 Jul 2025 |
Buckin' Hell 30k (30k) |
North Vancouver, British Columbia, Canada |
| 26 Jul 2025 |
Buckin' Hell 50k (50k) |
North Vancouver, British Columbia, Canada |
| 26 Jul 2025 |
White River 50 (50 Miler) |
Crystal Mountain, Washington, United States |
| 27 Jul 2025 |
San Francisco Marathon (Marathon|First Half|Second Half|10K) |
San Francisco, California, United States |
| 27 Jul 2025 |
Burning River (100 Miler) |
Cuyahoga Falls, Ohio, United States |
| 1-8 Aug 2025 |
Bigfoot 100k/40miler (40 Miler|100K) |
Cougar, Washington, United States |
| 02 Aug 2025 |
Oakadoke Trail Runs (9 Mile|18 Mile|4 Mile) |
Valparaiso, Indiana, United States |
| 02 Aug 2025 |
El Vaquero Loco (25k |50K) |
Afton, Wyoming, United States |
| 02 Aug 2025 |
Sheep Mountain (50 Miler) |
Fairplay, Colorado, United States |
| 02 Aug 2025 |
Angel Creek 50 Miler (50 Miler) |
Fairbanks, Arkansas, United States |
| 02 Aug 2025 |
Waldo (100K) |
Oakridge, Oregon, United States |
| 02 Aug 2025 |
Volcanic (50K) |
Cougar, Washington, United States |
| 02 Aug 2025 |
Flirt with Dirt (10K|5K) |
Northville, Michigan, United States |
| 02 Aug 2025 |
Badger 100 (100 Miler) |
Belleville, Wisconsin, United States |
| 02 Aug 2025 |
HURL Elkhorn (50 Mile|50 K) |
Helena, Montana, United States |
| 02 Aug 2025 |
Canadian Death Race (125 km) |
Grande Cache, Alberta, Canada |
| 02 Aug 2025 |
Angeles Crest (100 Mile Endurance Run) |
Wrightwood, California, United States |
| 02 Aug 2025 |
Riley Park Trail Races (Half Marathon|5k|10 Miler|10k|30k) |
Coto De Caza, California, United States |
| 03 Aug 2025 |
Skyline 50k Endurance Run (50K) |
Castro Valley, California, United States |
| 8-9 Aug 2025 |
Swiss Alps 100 (Vertical|Kids Run|160KM|50KM|Matterhorning|Matterhorning (full)|binn - grengiols current|binn - grengiols new|100KM) |
Fiesch, Valais, Switzerland |
| 08 Aug 2025 |
Bigfoot 200 (200 Miler) |
Mount Saint Helens, Washington, United States |
| 08 Aug 2025 |
Fat Dog 120 (120 Miler|40 Miler|100k|50 Miler) |
Manning Park, British Columbia, Canada |
| 8-9 Aug 2025 |
Run Baileys (Half Marathon|Kids Race|5K) |
Millfield, Ohio, United States |
| 09 Aug 2025 |
Ultra Great Britain (215 Miles) |
Portpatrick, Scotland, United Kingdom |
| 09 Aug 2025 |
Marlette 50K (50K) |
Lake Tahoe, Nevada, United States |
| 09 Aug 2025 |
Eastern States 100 (100 miler) |
Waterville, Pennsylvania, United States |
| 09 Aug 2025 |
TMNZ Beast (Secondary Schools Beast (5km)|TMNZ Beast (6km)|TMNZ Mini Beast (3km)) |
Haruru Falls, Northland, New Zealand |
| 09 Aug 2025 |
Running Between the Vines (5M|13.1M|5K) |
Jackson, Michigan, United States |
| 09 Aug 2025 |
MD Heat Trail Race (25K|50K) |
Elkridge, Maryland, United States |
| 09 Aug 2025 |
Beast of Burden (Summer) (100 Miler) |
Lockport, New York, United States |
| 09 Aug 2025 |
Kat'cina Mosa 100K Mountain Run (100K) |
Springville, Utah, United States |
| 09 Aug 2025 |
North Downs Way 100 (100 Miles) |
Waverley, England, United Kingdom |
| 09 Aug 2025 |
Sierra-Zinal (31k) |
Sierre, Valais, Switzerland |
| 09 Aug 2025 |
Summit Forests Kaitaia Trail Run/Walk (4km|Half Marathon|11.5km) |
Kaitaia / Awanui, Northland, New Zealand |
| 09 Aug 2025 |
Wolkberg Trail Run (Wolkberg Trail Run Day 1 40km) |
Haenertsburg, Limpopo, South Africa |
| 09 Aug 2025 |
Skyline Mountain (Marathon|1/2 Marathon|55K) |
Eden, Utah, United States |
| 10 Aug 2025 |
Pines to Vines 55K (30K|55K) |
Pinckney, Michigan, United States |
| 15 Aug 2025 |
Marquette 50 (50 Miler|50K) |
Forestville, Michigan, United States |
| 15 Aug 2025 |
Lean Horse 100 (100 Miler) |
Custer, South Dakota, United States |
| 16 Aug 2025 |
Post Canyon 50K (50K) |
Hood River, Oregon, United States |
| 16 Aug 2025 |
Twisted Branch Trail Run (100K) |
Naples, New York, United States |
| 16 Aug 2025 |
Wy'east Trailfest (14K|8K|50 Miler|50K|28K|Half Marathon) |
Mt. Hood, Oregon, United States |
| 16 Aug 2025 |
Bulldog 50k & 25k Trail Runs (25k|50k) |
Calabasas, California, United States |
| 16 Aug 2025 |
Leadville Trail 100 Run (100 Miles) |
Leadville, Colorado, United States |
| 16-17 Aug 2025 |
Squamish 50 (50 mile|50 km|23 km) |
Squamish, British Columbia, Canada |
| 16 Aug 2025 |
Tamalpa Headlands 50K (50K) |
Muir Beach, California, United States |
| 17 Aug 2025 |
Connemara 100 (100 Miles) |
County Galway, Connacht, Ireland |
| 17 Aug 2025 |
Kakabeka Falls (8K|Marathon|Half Marathon) |
Oliver Paipoonge, Ontario, Canada |
| 20 Aug 2025 |
T-Rex Triathlon & Duathlon Series (Duathlon Run|Run|Bike|Swim) |
Brighton, Michigan, United States |
| 23 Aug 2025 |
Rottenlauf (Schüler/innen C / D (0.8km)|13.2km|Jugend A / B (2.1km)|Schüler/innen A / B (1.3km)) |
3998 Reckingen, Valais, Switzerland |
| 23 Aug 2025 |
Leeds & Liverpool Canal (130 Miles) |
Liverpool, England, United Kingdom |
| 23 Aug 2025 |
Shawnee Hills 100 (100K|100 Miler|50K) |
Ozark, Illinois, United States |
| 23 Aug 2025 |
Moose Mountain Trail Races (29K|42K) |
Bragg Creek, Alberta, Canada |
| 23 Aug 2025 |
Habanero Hundred (100 Miler) |
Austin County, Texas, United States |
| 23 Aug 2025 |
Hood to Coast (Relay) |
Mt. Hood, Oregon, United States |
| 23 Aug 2025 |
Santa Cruz Trail Run (30K|1/2 Marathon|10K) |
Felton, California, United States |
| 23 Aug 2025 |
Oregon Cascades 100 (100 Miler|50 Mile) |
Sisters, Oregon, United States |
| 24 Aug 2025 |
Santa Rosa Marathon (Half|Marathon) |
Santa Rosa, California, United States |
| 30 Aug 2025 |
Booneville Backroads Ultra (100 Miler) |
Waukee, Iowa, United States |
| 30 Aug 2025 |
Coastal High 50 (Coastal High Crunch (28km)|Coastal High 50) |
Binna Burra, Queensland, Australia |
| 30 Aug 2025 |
Wildcat 100 (100 Miler) |
Beulah, Florida, United States |
| 01 Sep 2025 |
Mt. Baldy Run to the Top (7 Miler) |
Mt. Baldy, California, United States |
| 5-7 Sep 2025 |
Ultra-Trail Harricana du Canada (125 km|80 km|65 km|42 km|28 km|20 km|10 km|5 km) |
La Malbaie, Quebec, Canada |
| 5-6 Sep 2025 |
Lost Soul Ultra (50K|100K|100 Mile) |
Lethbridge, Alberta, Canada |
| 05 Sep 2025 |
Woodstock Festival (Hallucination 100 Mile) |
Livingston County, Michigan, United States |
| 05 Sep 2025 |
Superior Fall Trail Race (100 Miles) |
Castle Danger, Minnesota, United States |
| 5-6 Sep 2025 |
Run Woodstock (5M|50K|13.1M|26.2M|100M|100K|50M) |
Gregory, Michigan, United States |
| 6-7 Sep 2025 |
Finlayson Arm (28K|50K) |
Victoria, British Columbia, Canada |
| 6-7 Sep 2025 |
Backcountry Rise (50K|20 Miler|Half Marathon) |
Toutle, Washington, United States |
| 06 Sep 2025 |
Pine Creek Challenge (100K|100 Miler) |
Marsh Creek, Pennsylvania, United States |
| 06 Sep 2025 |
Noble Canyon (50K) |
Pine Valley, California, United States |
| 06 Sep 2025 |
Legacy of Patriots 3rd Annual Miles of Memories 5k (5k) |
Fenton, Missouri, United States |
| 06 Sep 2025 |
Haliburton Forest 100 (100 Miles) |
Dysart Et Al, Ontario, Canada |
| 06 Sep 2025 |
The Hawk Hundred (100 Miler|50 Miler|Marathon) |
Kanwaka, Kansas, United States |
| 06 Sep 2025 |
Steven Creek Striders Resevoir Run (1/2 Marathon|10K) |
Cupertino, California, United States |
| 06 Sep 2025 |
Mogollon Monster (100 Miler|42K) |
Pine, Arizona, United States |
| 07 Sep 2025 |
WW X Tri Prime View 2025 (Bike|Run) |
Olifantsfontein, Western Cape, South Africa |
| 12-14 Sep 2025 |
The Rut Mountain Runs (VK|11k|28k|50k) |
Big Sky, Montana, United States |
| 12 Sep 2025 |
Run Rabbit Run (100 Mile Tortoises|50 Miler) |
Steamboat Springs, Colorado, United States |
| 13 Sep 2025 |
Iron Horse Ultra 100 (100 Miles) |
Town Of St. Paul, Alberta, Canada |
| 13 Sep 2025 |
Pine to Palm (100 Miler) |
Williams, Oregon, United States |
| 14-16 Sep 2025 |
Tor Des Geants (130k|330k) |
Gressoney-saint-jean, Aosta Valley, Italy |
| 14 Sep 2025 |
Fyfield Footpath 5K & 10K (10K|5K) |
Fyfield, Essex, United Kingdom |
| 14 Sep 2025 |
Ohio Pawpaw 4 Mile (4 Mile|1 Mile Fun Run) |
Albany, Ohio, United States |
| 14 Sep 2025 |
WHISTLER X TRI (Sprint Distance Bike|Championship Distance Run|Championship Distance Bike|Sprint Distance Run) |
Whistler, British Columbia, Canada |