| | Region | State | Month | | | Closing | | % Filled | |
|
| PAC | CA | Jan |
Sean O'Brien 100K/50M/50K/26.2/30K
Calabasas, CA
Sat Jan 30, 2027
| 100K | | Register Now! | 99% |
|
|
| PAC | CA | Jan |
Sean O'Brien 100K/50M/50K/26.2/30K
Calabasas, CA
Sat Jan 30, 2027
| 50 Miler | | Register Now! | 99% |
|
|
| PAC | CA | Jan |
Sean O'Brien 100K/50M/50K/26.2/30K
Calabasas, CA
Sat Jan 30, 2027
| 50K | | Register Now! | 99% |
|
|
| PAC | CA | Jan |
Sean O'Brien 100K/50M/50K/26.2/30K
Calabasas, CA
Sat Jan 30, 2027
| 26.2 | | Register Now! | 99% |
|
|
| PAC | CA | Jan |
Sean O'Brien 100K/50M/50K/26.2/30K
Calabasas, CA
Sat Jan 30, 2027
| 30K | | Register Now! | 99% |
|
|
| SOUTH | VA | May |
Grayson Highlands 50 Mile / 50k / 25k
Mouth of Wilson, VA
Sat May 1, 2027
| 50 Miler | | Register Now! | 99% |
|
|
| SOUTH | VA | May |
Grayson Highlands 50 Mile / 50k / 25k
Mouth of Wilson, VA
Sat May 1, 2027
| 50K | | Register Now! | 99% |
|
|
| SOUTH | VA | May |
Grayson Highlands 50 Mile / 50k / 25k
Mouth of Wilson, VA
Sun May 2, 2027
| 25K | | Register Now! | 99% |
|
|
| SOUTH | VA | May |
Grayson Highlands 50 Mile / 50k / 25k
Mouth of Wilson, VA
Sun May 2, 2027
| 8 Miler | | Register Now! | 99% |
|
|
| WEST | UT | Aug |
Salt and Sulfur 420
Salt Lake City, UT
Wed Aug 4, 2027
| Crewed | | Register Now! | 99% |
|
|
| WEST | TX | Oct |
HARVEST TRAIL RUNNING FESTIVAL
Farmersville, TX
Sat Oct 31, 2026
| Half Marathon | Oct 30 | Register Now! | 98% |
|
|
| SOUTH | VA | Nov |
Mountain Masochist Trail Run
Montebello, VA
Sat Nov 7, 2026
| 50K | Nov 4 | Register Now! | 98% |
|
|
| SOUTH | VA | Nov |
Mountain Masochist Trail Run
Montebello, VA
Sat Nov 7, 2026
| 50 Miler | Nov 4 | Register Now! | 98% |
|
|
| SOUTH | VA | Nov |
Mountain Masochist Trail Run
Montebello, VA
Sat Nov 7, 2026
| 100K | Nov 4 | Register Now! | 98% |
|
|
| MID-W | MI | Nov |
Veterans' Honor Run: 22 Hours of Tribute
Canton, MI
Sat Nov 7, 2026
| 22 Hour Ultra | | Register Now! | 98% |
|
|
| MID-W | MI | Nov |
Veterans' Honor Run: 22 Hours of Tribute
Canton, MI
Sat Nov 7, 2026
| Virtual 22 Hour Ultra | | Register Now! | 98% |
|
|
| SOUTH | NC | Nov |
The Bracken
Brevard, NC
Sat Nov 21, 2026
| 25K | | Register Now! | 98% |
|
|
| SOUTH | NC | Nov |
The Bracken
Brevard, NC
Sat Nov 21, 2026
| 50K | | Register Now! | 98% |
|
|
| SOUTH | NC | Nov |
The Bracken
Brevard, NC
Sat Nov 21, 2026
| 7.5 Miles | | Register Now! | 98% |
|
|
| SOUTH | GA | Dec |
Cloudland Canyon 50 Mile/50K/25K/5 MIle
Rising Fawn, GA
Sat Dec 5, 2026
| 50K | | Register Now! | 98% |
|
|
| SOUTH | GA | Jan |
Helen Holiday Trail Race
Helen, GA
Sat Jan 16, 2027
| 10K | | Register Now! | 98% |
|
|
| SOUTH | GA | Jan |
Helen Holiday Trail Race
Helen, GA
Sat Jan 16, 2027
| 50K | | Register Now! | 98% |
|
|
| SOUTH | GA | Jan |
Helen Holiday Trail Race
Helen, GA
Sat Jan 16, 2027
| 25K | | Register Now! | 98% |
|
|
| SOUTH | FL | Nov |
Wild Florida Trail Run
White Springs, FL
Sat Nov 7, 2026
| 50K | | Register Now! | 97% |
|
|
| MID-W | OH | Nov |
A Day in the Park
Lebanon, OH
Sat Nov 7, 2026
| 6hrs | Nov 2 | Register Now! | 97% |
|
|
| MID-A | MD | Nov |
Rosaryville Veterans Day Trail Race
Upper Marlboro, MD
Sat Nov 14, 2026
| 50K | | Register Now! | 97% |
|
|
| MID-A | MD | Nov |
Rosaryville Veterans Day Trail Race
Upper Marlboro, MD
Sat Nov 14, 2026
| 20K | | Register Now! | 97% |
|
|
| SOUTH | GA | Dec |
Cloudland Canyon 50 Mile/50K/25K/5 MIle
Rising Fawn, GA
Sat Dec 5, 2026
| 50 Miler | | Register Now! | 97% |
|
|
| SOUTH | NC | Jan |
The Squirrel Trail Run
Wake Forest, NC
Sat Jan 2, 2027
| 20 Kilometers | | Register Now! | 97% |
|
|
| WEST | UT | Nov |
Dead Horse Ultra
Moab, UT
Sat Nov 14, 2026
| 30K | | Register Now! | 96% |
|
|
| MID-W | IA | Nov |
Woodpecker Six
Central City, IA
Sat Nov 14, 2026
| 6 Hour | | Register Now! | 96% |
|
|
| SOUTH | NC | Dec |
HAROC (aka Hanging Rock Challenge)
Danbury, NC
Sat Dec 5, 2026
| 25k | | Register Now! | 96% |
|
|
| SOUTH | NC | Dec |
HAROC (aka Hanging Rock Challenge)
Danbury, NC
Sat Dec 5, 2026
| 50k | | Register Now! | 96% |
|
|
| SOUTH | FL | Nov |
Across Florida 200
St. Augustine Beach, FL
Tue Nov 10, 2026
| 200 Miler | | Register Now! | 95% |
|
|
| SOUTH | FL | Nov |
The Legacy Trail Ultra
Sarasota, FL
Sun Nov 22, 2026
| 60K | | Register Now! | 95% |
|
|
| PAC | CA | Nov |
Chino Hills Trail Run Series Fall
Brea, CA
Sat Nov 7, 2026
| 50K | Nov 4 | Register Now! | 94% |
|
|
| PAC | CA | Nov |
Chino Hills Trail Run Series Fall
Brea, CA
Sat Nov 7, 2026
| 30K | Nov 4 | Register Now! | 94% |
|
|
| PAC | CA | Nov |
Chino Hills Trail Run Series Fall
Brea, CA
Sat Nov 7, 2026
| 10K | Nov 4 | Register Now! | 94% |
|
|
| MID-A | NY | Nov |
NYC Trail Mix
Staten Island, NY
Sat Nov 14, 2026
| 50 Miler | | Register Now! | 94% |
|
|
| WEST | UT | Nov |
Dead Horse Ultra
Moab, UT
Sat Nov 14, 2026
| 50K | | Register Now! | 93% |
|
|
| WEST | UT | Nov |
Dead Horse Ultra
Moab, UT
Sat Nov 14, 2026
| 15K | | Register Now! | 93% |
|
|
| SOUTH | GA | Apr |
Hellathon
Rising Fawn, GA
Mon Apr 5, 2027
| 4.16 Miler | | Register Now! | 93% |
|
|
| CAN | ON | May |
Sulphur Springs Trail Race
Ancaster, ON
Sat May 29, 2027
| 100K | | Register Now! | 93% |
|
|
| WEST | AZ | Nov |
Route 66 UltraRun
Historic Route 66, AZ
Sat Nov 14, 2026
| Crew for 100 Mile Runer | Oct 30 | Register Now! | 92% |
|
|
| WEST | TX | Nov |
Dinosaur Valley Endurance Run
Glen Rose, TX
Sat Nov 21, 2026
| 100 Miler | | Register Now! | 91% |
|
|
| MID-A | NY | Dec |
PPTC Endurance Fest
Brooklyn, NY
Sun Dec 6, 2026
| 50 Miler | | Register Now! | 91% |
|
|
| CAN | ON | May |
Sulphur Springs Trail Race
Ancaster, ON
Sat May 29, 2027
| 100M Relay | | Register Now! | 91% |
|
|
| CAN | ON | Jun |
Ribbon TrailFest
Caledon, ON
Fri Jun 11, 2027
| 100 Miler | | Register Now! | 91% |
|
|
| MID-W | OH | Nov |
A Day in the Park
Lebanon, OH
Sat Nov 7, 2026
| 24hrs | Nov 2 | Register Now! | 90% |
|
|
| WEST | OK | Nov |
BEAVERFOOT
Broken Bow, OK
Sat Nov 21, 2026
| 22 MILER | | Register Now! | 90% |
|
|
| CAN | ON | Jun |
Ribbon TrailFest
Caledon, ON
Sat Jun 12, 2027
| 50 Miler | | Register Now! | 90% |
|
|
| WEST | TX | Oct |
HARVEST TRAIL RUNNING FESTIVAL
Farmersville, TX
Sat Oct 31, 2026
| 10K Ruck | Oct 30 | Register Now! | 89% |
|
|
| MID-A | NY | Nov |
NYC Trail Mix
Staten Island, NY
Sat Nov 14, 2026
| 50K | | Register Now! | 89% |
|
|
| SOUTH | SC | Nov |
Hallucination
Johns Island, SC
Fri Nov 20, 2026
| 34 Hour | | Register Now! | 89% |
|
|
| SOUTH | SC | Nov |
Hallucination
Johns Island, SC
Fri Nov 20, 2026
| 24hrs | | Register Now! | 89% |
|
|
| SOUTH | SC | Nov |
Hallucination
Johns Island, SC
Sat Nov 21, 2026
| 12hrs | | Register Now! | 89% |
|
|
| SOUTH | SC | Nov |
Hallucination
Johns Island, SC
Sat Nov 21, 2026
| 6hrs | | Register Now! | 89% |
|
|
| SOUTH | GA | Dec |
Cloudland Canyon 50 Mile/50K/25K/5 MIle
Rising Fawn, GA
Sun Dec 6, 2026
| 25K | | Register Now! | 89% |
|
|
| WEST | TX | Oct |
HARVEST TRAIL RUNNING FESTIVAL
Farmersville, TX
Sat Oct 31, 2026
| 50K | Oct 30 | Register Now! | 88% |
|
|
| WEST | CO | Nov |
Kessel Run Ultra
Fruita, CO
Sat Nov 7, 2026
| 10 Miler | Nov 2 | Register Now! | 88% |
|
|
| WEST | CO | Nov |
Kessel Run Ultra
Fruita, CO
Sat Nov 7, 2026
| 20 Miler | Nov 2 | Register Now! | 88% |
|
|
| WEST | CO | Nov |
Kessel Run Ultra
Fruita, CO
Sat Nov 7, 2026
| 50k | Nov 2 | Register Now! | 88% |
|
|
| WEST | CO | Nov |
Kessel Run Ultra
Fruita, CO
Sat Nov 7, 2026
| 40 Miler | Nov 2 | Register Now! | 88% |
|
|
| WEST | CO | Nov |
Kessel Run Ultra
Fruita, CO
Sat Nov 7, 2026
| 50 Miler | Nov 2 | Register Now! | 88% |
|
|
| WEST | UT | Nov |
Dead Horse Ultra
Moab, UT
Sat Nov 14, 2026
| 50 Miler | | Register Now! | 88% |
|
|
| SOUTH | GA | Nov |
Chattabrewchee Invitational
Columbus, GA
Sat Nov 21, 2026
| 100 Mile Race | | Register Now! | 88% |
|
|
| SOUTH | FL | Dec |
Festivus 100/50 Miler Trail Run
middleburg, FL
Sat Dec 5, 2026
| 100 Miler | | Register Now! | 87% |
|
|
| MID-A | PA | Nov |
Tiadaghton Trail Challenge
Waterville, PA
Sat Nov 14, 2026
| 1/2 Marathon | Nov 1 | Register Now! | 86% |
|
|
| MID-A | PA | Nov |
Tiadaghton Trail Challenge
Waterville, PA
Sat Nov 14, 2026
| 10K | Nov 1 | Register Now! | 86% |
|
|
| WEST | CO | Nov |
Mountain Peacock 50k
Golden, CO
Sun Nov 15, 2026
| 50K | | Register Now! | 86% |
|
|
| WEST | AZ | Mar |
Arizona Monster 300
Superior, AZ
Mon Mar 29, 2027
| 300 Miler | | Register Now! | 86% |
|
|
| SOUTH | FL | Nov |
Wild Florida Trail Run
White Springs, FL
Sat Nov 7, 2026
| 25K | | Register Now! | 85% |
|
|
| WEST | TX | Nov |
Rise El Taco Loco
San Antonio, TX
Sat Nov 14, 2026
| 5K | | Register Now! | 85% |
|
|
| MID-W | IA | Dec |
Hitchcock Experience Endurance Runs
Honey Creek, IA
Sat Dec 5, 2026
| 50 Miler | | Register Now! | 85% |
|
|
| WEST | AZ | Nov |
Pass Mountain
Mesa, AZ
Sat Nov 14, 2026
| 50 Miler | | Register Now! | 84% |
|
|
| WEST | AZ | Nov |
Pass Mountain
Mesa, AZ
Sat Nov 14, 2026
| 50K | | Register Now! | 84% |
|
|
| WEST | AZ | Nov |
Pass Mountain
Mesa, AZ
Sat Nov 14, 2026
| 25K | | Register Now! | 84% |
|
|
| WEST | AZ | Nov |
Pass Mountain
Mesa, AZ
Sat Nov 14, 2026
| 10K | | Register Now! | 84% |
|
|
| WEST | AZ | Nov |
Pass Mountain
Mesa, AZ
Sat Nov 14, 2026
| 5K | | Register Now! | 84% |
|
|
| SOUTH | TN | Nov |
IRON GRIDDLE
Nashville, TN
Sat Nov 14, 2026
| 50K | | Register Now! | 84% |
|
|
| SOUTH | TN | Nov |
IRON GRIDDLE
Nashville, TN
Sat Nov 14, 2026
| Trail Half | | Register Now! | 84% |
|
|
| SOUTH | TN | Nov |
IRON GRIDDLE
Nashville, TN
Sat Nov 14, 2026
| 6 Mile | | Register Now! | 84% |
|
|
| PAC | CA | Nov |
Roosters Backyard Ultra
San Diego, CA
Sat Nov 14, 2026
| backyard | Nov 1 | Register Now! | 84% |
|
|
| PAC | CA | Dec |
Woodside Ramble
Redwood City, CA
Sat Dec 19, 2026
| 50K | | Register Now! | 84% |
|
|
| PAC | CA | Dec |
Woodside Ramble
Redwood City, CA
Sat Dec 19, 2026
| 35K | | Register Now! | 84% |
|
|
| PAC | CA | Dec |
Woodside Ramble
Redwood City, CA
Sat Dec 19, 2026
| 1/2 Marathon | | Register Now! | 84% |
|
|
| PAC | CA | Dec |
Woodside Ramble
Redwood City, CA
Sat Dec 19, 2026
| 10K | | Register Now! | 84% |
|
|
| SOUTH | AL | Jan |
Mountain Mist
Huntsville, AL
Sat Jan 23, 2027
| 50K | | Register Now! | 84% |
|
|
| WEST | UT | Mar |
Moab Run the Rocks
Moab, UT
Fri Mar 5, 2027
| Full Pint / 48 Miles | | Register Now! | 84% |
|
|
| WEST | UT | Mar |
Moab Run the Rocks
Moab, UT
Fri Mar 5, 2027
| Half Pint / 37 Miles | | Register Now! | 84% |
|
|
| CAN | AB | Aug |
Moose Mountain Trail Races
Bragg Creek, AB
Sat Aug 21, 2027
| 29K | | Register Now! | 84% |
|
|
| SOUTH | FL | Feb |
Forgotten Florida
Christmas, FL
Sat Feb 6, 2027
| 100 Miler | | Register Now! | 83% |
|
|
| WEST | TX | Nov |
Rockledge Rumble
Grapevine, TX
Sat Nov 14, 2026
| 50K | | Register Now! | 82% |
|
|
| MID-W | IA | Nov |
The Stuffed Turkey Endurance Races
Granger, IA
Sat Nov 21, 2026
| 50 Miler | | Register Now! | 82% |
|
|
| MID-W | IA | Nov |
The Stuffed Turkey Endurance Races
Granger, IA
Sat Nov 21, 2026
| 100 Miler | | Register Now! | 82% |
|
|
| SOUTH | FL | Feb |
Death at DuPuis (A Backyard Event)
Canal Point, FL
Sat Feb 6, 2027
| Last person standing | | Register Now! | 82% |
|
|
| CAN | ON | Apr |
Caledon Crusher
Mono, ON
Sat Apr 10, 2027
| E2E - 72K | | Register Now! | 82% |
|
|
| SOUTH | GA | Nov |
Lady of the Lake
Blairsville, GA
Sat Nov 14, 2026
| 4hrs | | Register Now! | 80% |
|
|
| SOUTH | GA | Nov |
Lady of the Lake
Blairsville, GA
Sat Nov 14, 2026
| 8hrs | | Register Now! | 80% |
|
|
| WEST | TX | Nov |
Rise El Taco Loco
San Antonio, TX
Sat Nov 14, 2026
| 100 miles | | Register Now! | 80% |
|
