| | Region | State | Month | | | Closing | | % Filled | |
|
| MID-W | WI | May |
Sugar Badger 50/50 and Half
Belleville, WI
Sat May 24, 2025
| 50K | | Register Now! | 99% |
|
|
| PAC | CA | Jun |
Malibu Canyon Trail Races
Malibu, CA
Sat Jun 7, 2025
| 100K | | Register Now! | 99% |
|
|
| PAC | CA | Jun |
Malibu Canyon Trail Races
Malibu, CA
Sat Jun 7, 2025
| 50 mile | | Register Now! | 99% |
|
|
| PAC | CA | Jun |
Malibu Canyon Trail Races
Malibu, CA
Sat Jun 7, 2025
| 50K | | Register Now! | 99% |
|
|
| PAC | CA | Jun |
Malibu Canyon Trail Races
Malibu, CA
Sat Jun 7, 2025
| 30K | | Register Now! | 99% |
|
|
| PAC | CA | Jun |
Malibu Canyon Trail Races
Malibu, CA
Sat Jun 7, 2025
| Half Marathon | | Register Now! | 99% |
|
|
| PAC | WA | Aug |
Hamster Endurance Runs
Bellingham, WA
Sat Aug 2, 2025
| 32hrs | | Register Now! | 99% |
|
|
| NEW-E | CT | May |
Forgotten Forest Ultra Run
Stratford, CT
Sat May 3, 2025
| 9hrs | | Register Now! | 98% |
|
|
| PAC | CA | May |
O'Neill Park Trail Races
Trabuco Canyon, CA
Sat May 17, 2025
| 50k | | Register Now! | 98% |
|
|
| PAC | CA | May |
O'Neill Park Trail Races
Trabuco Canyon, CA
Sat May 17, 2025
| Marathon | | Register Now! | 98% |
|
|
| PAC | CA | May |
O'Neill Park Trail Races
Trabuco Canyon, CA
Sat May 17, 2025
| 30k | | Register Now! | 98% |
|
|
| PAC | CA | May |
O'Neill Park Trail Races
Trabuco Canyon, CA
Sat May 17, 2025
| Half Marathon | | Register Now! | 98% |
|
|
| PAC | CA | May |
O'Neill Park Trail Races
Trabuco Canyon, CA
Sat May 17, 2025
| 10k | | Register Now! | 98% |
|
|
| WEST | AZ | Apr |
Hells Dells
Prescott, AZ
Sat Apr 26, 2025
| 31 Miler | Apr 23 | Register Now! | 97% |
|
|
| WEST | CO | Jun |
The John Cappis
Silverton, CO
Sat Jun 28, 2025
| 19hrs | | Register Now! | 97% |
|
|
| SOUTH | GA | Oct |
Georgia Sky to Summit
Sky Valley, GA
Sat Oct 25, 2025
| 50K | | Register Now! | 97% |
|
|
| SOUTH | GA | Oct |
Georgia Sky to Summit
Sky Valley, GA
Sun Oct 26, 2025
| 25K | | Register Now! | 97% |
|
|
| SOUTH | GA | Dec |
Cloudland Canyon 50 Mile/50K/Half
Rising Fawn, GA
Sat Dec 6, 2025
| 50 Miler | | Register Now! | 97% |
|
|
| SOUTH | GA | Dec |
Cloudland Canyon 50 Mile/50K/Half
Rising Fawn, GA
Sat Dec 6, 2025
| 50K | | Register Now! | 97% |
|
|
| SOUTH | GA | Dec |
Cloudland Canyon 50 Mile/50K/Half
Rising Fawn, GA
Sun Dec 7, 2025
| 5 Miler | | Register Now! | 97% |
|
|
| SOUTH | GA | Dec |
Cloudland Canyon 50 Mile/50K/Half
Rising Fawn, GA
Sun Dec 7, 2025
| 25K | | Register Now! | 97% |
|
|
| WEST | UT | Apr |
Thelma and Louise Marathon and Half
Moab, UT
Sat Apr 26, 2025
| 15K | Apr 24 | Register Now! | 96% |
|
|
| WEST | UT | Apr |
Thelma and Louise Marathon and Half
Moab, UT
Sat Apr 26, 2025
| 1/2 Marathon | Apr 24 | Register Now! | 96% |
|
|
| WEST | UT | Apr |
Thelma and Louise Marathon and Half
Moab, UT
Sat Apr 26, 2025
| Marathon | Apr 24 | Register Now! | 96% |
|
|
| WEST | UT | Apr |
Thelma and Louise Marathon and Half
Moab, UT
Sat Apr 26, 2025
| 50K | Apr 24 | Register Now! | 96% |
|
|
| WEST | CO | May |
Collegiate Peaks Trail Run
Buena Vista, CO
Sat May 3, 2025
| 50 Miler | Apr 24 | Register Now! | 96% |
|
|
| WEST | CO | May |
Collegiate Peaks Trail Run
Buena Vista, CO
Sat May 3, 2025
| 25 Miler | Apr 24 | Register Now! | 96% |
|
|
| MID-W | KS | May |
Heartland 50
Cassoday, KS
Sat May 3, 2025
| 50K | | Register Now! | 96% |
|
|
| SOUTH | FL | Nov |
Wild Florida Trail Run
White Springs, FL
Sat Nov 15, 2025
| 50K | | Register Now! | 96% |
|
|
| SOUTH | FL | Nov |
Wild Florida Trail Run
White Springs, FL
Sat Nov 15, 2025
| 25K | | Register Now! | 96% |
|
|
| SOUTH | FL | Nov |
Wild Florida Trail Run
White Springs, FL
Sat Nov 15, 2025
| 10K | | Register Now! | 96% |
|
|
| WEST | AZ | Apr |
Insomniac Night Trail Run Series
Multiple Cities, AZ
Sat Apr 26, 2025
| Wingsuit (15K-20K) | Apr 21 | Register Now! | 95% |
|
|
| WEST | AZ | Apr |
Insomniac Night Trail Run Series
Multiple Cities, AZ
Sat Apr 26, 2025
| Jitters (7K-10K) | Apr 21 | Register Now! | 95% |
|
|
| WEST | AZ | Apr |
Insomniac Night Trail Run Series
Multiple Cities, AZ
Sat Apr 26, 2025
| Vigil (23K-31K) | Apr 21 | Register Now! | 95% |
|
|
| WEST | AZ | Apr |
Insomniac Night Trail Run Series
Multiple Cities, AZ
Sat Apr 26, 2025
| Delirium (50K-54K) | Apr 21 | Register Now! | 95% |
|
|
| WEST | AZ | Apr |
Insomniac Night Trail Run Series
Multiple Cities, AZ
Sat Apr 26, 2025
| Evolution (9K-50K) | Apr 21 | Register Now! | 95% |
|
|
| WEST | TX | May |
East Texas Ultra
Pittsburg, TX
Sat May 17, 2025
| 50K | | Register Now! | 95% |
|
|
| MID-W | WI | May |
Sugar Badger 50/50 and Half
Belleville, WI
Sat May 24, 2025
| 50 Miler | | Register Now! | 95% |
|
|
| MID-W | WI | Jun |
Six Days in the Dome
Milwaukee, WI
Thu Jun 19, 2025
| 10-DAY | | Register Now! | 95% |
|
|
| PAC | OR | Aug |
Oregon Cascades 100
Sisters, OR
Sat Aug 23, 2025
| 100 Miler | | Register Now! | 95% |
|
|
| SOUTH | VA | Apr |
Promise Land
Bedford, VA
Sat Apr 26, 2025
| 50K | Apr 22 | Register Now! | 93% |
|
|
| NEW-E | CT | Apr |
Jack Bristol Lake Waramaug Ultra Races
Kent, CT
Sun Apr 27, 2025
| 100K | Apr 25 | Register Now! | 93% |
|
|
| NEW-E | CT | Apr |
Jack Bristol Lake Waramaug Ultra Races
Kent, CT
Sun Apr 27, 2025
| 50 Miler | Apr 25 | Register Now! | 93% |
|
|
| NEW-E | CT | Apr |
Jack Bristol Lake Waramaug Ultra Races
Kent, CT
Sun Apr 27, 2025
| 50K | Apr 25 | Register Now! | 93% |
|
|
| MID-W | WI | May |
WausaUltra Single, Double, Limitless
Wausau, WI
Fri May 2, 2025
| Limitless | | Register Now! | 93% |
|
|
| SOUTH | VA | May |
Capital Backyard Ultra
Lorton , VA
Sat May 24, 2025
| Last Runner Standing | | Register Now! | 93% |
|
|
| MID-A | PA | Jun |
Laurel Highlands Ultra
Ohiopyle, PA
Sat Jun 14, 2025
| 70.5 Relay | | Register Now! | 93% |
|
|
| SOUTH | NC | Oct |
Cape Fear 24 Hour
Lillington, NC
Sat Oct 11, 2025
| 24hrs | | Register Now! | 93% |
|
|
| PAC | CA | Dec |
Ray Miller 50/50
Malibu, CA
Sat Dec 6, 2025
| 50 Miler | | Register Now! | 93% |
|
|
| PAC | CA | Dec |
Ray Miller 50/50
Malibu, CA
Sat Dec 6, 2025
| 50K | | Register Now! | 93% |
|
|
| PAC | CA | Dec |
Ray Miller 50/50
Malibu, CA
Sat Dec 6, 2025
| 30K | | Register Now! | 93% |
|
|
| NEW-E | CT | Apr |
Lake Mohegan Trail Race
Fairfield, CT
Sat Apr 26, 2025
| 10K | Apr 25 | Register Now! | 92% |
|
|
| NEW-E | CT | Apr |
Lake Mohegan Trail Race
Fairfield, CT
Sat Apr 26, 2025
| 5K | Apr 25 | Register Now! | 92% |
|
|
| NEW-E | CT | Apr |
Lake Mohegan Trail Race
Fairfield, CT
Sat Apr 26, 2025
| 4hrs | Apr 25 | Register Now! | 92% |
|
|
| PAC | OR | May |
Sisters Country
Sisters, OR
Sun May 4, 2025
| Half Marathon | | Register Now! | 92% |
|
|
| PAC | OR | May |
Sisters Country
Sisters, OR
Sun May 4, 2025
| 50K | | Register Now! | 92% |
|
|
| MID-W | IN | May |
The Full Mo
Sheridan, IN
Sat May 31, 2025
| The Full Mo - 50k | | Register Now! | 92% |
|
|
| WEST | ID | Jun |
River of No Return Endurance Runs
Challis, ID
Sat Jun 14, 2025
| 55K | | Register Now! | 92% |
|
|
| WEST | ID | Jun |
River of No Return Endurance Runs
Challis, ID
Sat Jun 14, 2025
| 32K | | Register Now! | 92% |
|
|
| PAC | OR | Jul |
Mt. Hood 50
Clackamas Lake, OR
Sun Jul 13, 2025
| 25K | | Register Now! | 92% |
|
|
| MID-A | NY | Jul |
Wakely Dam Ultra
Piseco , NY
Sat Jul 26, 2025
| 55K | | Register Now! | 92% |
|
|
| MID-W | WI | Aug |
Mindy Creek Trail Races
St. Croix Falls, WI
Sat Aug 23, 2025
| Marathon | | Register Now! | 92% |
|
|
| MID-W | WI | Aug |
Mindy Creek Trail Races
St. Croix Falls, WI
Sat Aug 23, 2025
| Half-Marathon | | Register Now! | 92% |
|
|
| MID-W | WI | Aug |
Mindy Creek Trail Races
St. Croix Falls, WI
Sat Aug 23, 2025
| 10K | | Register Now! | 92% |
|
|
| CAN | BC | Aug |
Fat Dog 120
Manning Park, BC
Fri Aug 8, 2025
| 100k | | Register Now! | 91% |
|
|
| PAC | WA | Aug |
Wonderland Circumnavigation
Mt. Rainier National Park, WA
Wed Aug 13, 2025
| Aug 13 - 16 | | Register Now! | 91% |
|
|
| NEW-E | CT | May |
The Blue 2 Blue Challenge
New Haven, CT
Sun May 4, 2025
| 50K | | Register Now! | 90% |
|
|
| PAC | OR | May |
Tillamook Burn
Tillamook State Forest, OR
Sat May 10, 2025
| 50 miler | | Register Now! | 90% |
|
|
| WEST | TX | May |
East Texas Ultra
Pittsburg, TX
Sat May 17, 2025
| 28K | | Register Now! | 90% |
|
|
| SOUTH | VA | Jun |
Dam Yeti 50
Abingdon, VA
Sun Jun 8, 2025
| PEPSI CHALLENGE | | Register Now! | 90% |
|
|
| SOUTH | MS | Aug |
Death by 5k Brandon
Brandon, MS
Sat Aug 30, 2025
| 24 Hour Challenge | | Register Now! | 90% |
|
|
| PAC | CA | May |
Born to Run Ultra Marathons
Los Olivos, CA
Wed May 14, 2025
| 4 Day Runner | | Register Now! | 89% |
|
|
| PAC | CA | May |
Born to Run Ultra Marathons
Los Olivos, CA
Wed May 14, 2025
| Day Pass | | Register Now! | 89% |
|
|
| PAC | CA | May |
Born to Run Ultra Marathons
Los Olivos, CA
Thu May 15, 2025
| 3 Day Runner | | Register Now! | 89% |
|
|
| PAC | CA | May |
Born to Run Ultra Marathons
Los Olivos, CA
Fri May 16, 2025
| 100M | | Register Now! | 89% |
|
|
| PAC | CA | May |
Born to Run Ultra Marathons
Los Olivos, CA
Sat May 17, 2025
| 30M | | Register Now! | 89% |
|
|
| PAC | CA | May |
Born to Run Ultra Marathons
Los Olivos, CA
Sat May 17, 2025
| 20M | | Register Now! | 89% |
|
|
| PAC | CA | May |
Born to Run Ultra Marathons
Los Olivos, CA
Sat May 17, 2025
| 10M | | Register Now! | 89% |
|
|
| WEST | WY | Aug |
Wyoming Range 100-Mile Endurance Run
Hoback, WY
Fri Aug 8, 2025
| 100 Miler | | Register Now! | 89% |
|
|
| MID-A | NJ | Apr |
Wawayanda Trail Fest
Hewitt, NJ
Sat Apr 26, 2025
| 50 Mile | Apr 24 | Register Now! | 88% |
|
|
| WEST | CO | May |
Valkyrie Trail Race
Colorado Springs, CO
Sat May 10, 2025
| 50K | | Register Now! | 88% |
|
|
| WEST | CO | May |
Valkyrie Trail Race
Colorado Springs, CO
Sat May 10, 2025
| Marathon | | Register Now! | 88% |
|
|
| WEST | CO | May |
Valkyrie Trail Race
Colorado Springs, CO
Sat May 10, 2025
| 30K | | Register Now! | 88% |
|
|
| WEST | CO | May |
Valkyrie Trail Race
Colorado Springs, CO
Sat May 10, 2025
| 1/2 Marathon | | Register Now! | 88% |
|
|
| WEST | CO | May |
Valkyrie Trail Race
Colorado Springs, CO
Sat May 10, 2025
| 8 Miler | | Register Now! | 88% |
|
|
| WEST | CO | May |
Valkyrie Trail Race
Colorado Springs, CO
Sat May 10, 2025
| 4 Miler | | Register Now! | 88% |
|
|
| WEST | CO | May |
North Fork 50 Mile/50K
Buffalo Creek, CO
Sat May 31, 2025
| 50 Miler | | Register Now! | 88% |
|
|
| WEST | CO | May |
North Fork 50 Mile/50K
Buffalo Creek, CO
Sat May 31, 2025
| 50K | | Register Now! | 88% |
|
|
| PAC | OR | Jun |
Cape Mountain
Florence, OR
Sun Jun 1, 2025
| 25K | | Register Now! | 88% |
|
|
| WEST | ID | Jun |
River of No Return Endurance Runs
Challis, ID
Sat Jun 14, 2025
| 108K | | Register Now! | 88% |
|
|
| CAN | AB | Aug |
Moose Mountain Trail Races
Bragg Creek, AB
Sat Aug 23, 2025
| 29K | | Register Now! | 88% |
|
|
| SOUTH | VA | Oct |
Virginia Trail Running Festival
Max Meadows, VA
Sat Oct 11, 2025
| 100 Miler | | Register Now! | 88% |
|
|
| SOUTH | VA | Oct |
Virginia Trail Running Festival
Max Meadows, VA
Sat Oct 11, 2025
| 100 Miler Relay | | Register Now! | 88% |
|
|
| SOUTH | VA | Oct |
Virginia Trail Running Festival
Max Meadows, VA
Sat Oct 11, 2025
| 50 Miler | | Register Now! | 88% |
|
|
| PAC | WA | May |
SW Fire on the Mountain
Husum, WA
Sat May 3, 2025
| 1/2 Marathon | | Register Now! | 87% |
|
|
| NEW-E | NH | Jun |
Chocorua Mountain Race
Tamworth, NH
Sat Jun 7, 2025
| 23K | | Register Now! | 87% |
|
|
| MID-W | WI | Apr |
Chippewa Trail Races
New Auburn, WI
Sat Apr 26, 2025
| 50K | Apr 21 | Register Now! | 86% |
|
|
| PAC | CA | Jun |
Cool Moon 100 Mile Endurance Run
Cool, CA
Sat Jun 14, 2025
| 100 Miler | | Register Now! | 86% |
|
|
| MID-A | MD | Jun |
Catoctin 50k Trail Run & Half Cat
Frederick, MD
Sat Jun 21, 2025
| 25K | | Register Now! | 86% |
|
|
| MID-A | NY | Jun |
Many On The Genny
Castile, NY
Sat Jun 28, 2025
| 45 Miler | | Register Now! | 86% |
|
