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Ultramarathon Races

An ultramarathon is any race longer than 26.2 miles — typically 50K, 50 miles, 100K, or 100 miles, often on trail. Below is our full calendar of upcoming ultramarathons for 2026 and 2027, updated weekly. Browse by city or state, or explore our 50K training program.

Filter by
100K
100 Mile
10K
10 Mile
12 Hour
15K
24 Hour
25K
50K
50 Mile
5K
5 Mile
6 Hour
Half Ironman
Half Marathon
Ironman
Marathon
Olympic
Relay
Sprint
Ultramarathon
Mammoth Trail Fest
Sep
24
27
Mammoth Lakes
,
California
Trail Running
View →
25K
50K
Kids
Ultramarathon
Rockledge Rumble
Nov
14
26
Dallas
,
Texas
Trail Running
Marathon
50K
Ultramarathon
15K
28K
Dead Horse Ultra
Nov
14
26
Moab
,
Utah
Trail Running
15K
50K
50 Mile
Ultramarathon
Route 66 UltraRun
Nov
14
26
Flagstaff
,
Arizona
Road Running
Ultramarathon
Seattle Ghost Marathon, Half Marathon & 50K
Nov
28
26
Seattle
,
Washington
Road Running
Half Marathon
Marathon
50K
Ultramarathon
Colorado River Run: 100-Mile & 50-Mile Ultra, 50K, Marathon, Half-Marathon, 10K and 5K
Nov
28
26
,
Texas
Trail Running
100 Mile
50 Mile
50K
Ultramarathon
10K
Isle Du Bois
Dec
05
26
Dallas
,
Texas
Trail Running
10K
Half Marathon
Marathon
Ultramarathon
50K
McDowell Mountain Frenzy Trail Runs
Dec
05
26
Phoenix
,
Arizona
Trail Running
10K
Half Marathon
50 Mile
50K
Ultramarathon
Frozen Trail Runfest
Dec
12
26
Eugene
,
Oregon
Trail Running
5K
15K
25K
50K
Ultramarathon
Woodside Ramble
Dec
19
26
Woodside
,
California
Trail Running
10K
Half Marathon
50K
Ultramarathon
Hacienda Hills Trail Run (Winter)
Jan
02
27
San Jose
,
California
Trail Running
50K
25K
Half Marathon
Kids
Ultramarathon
San Diego 50 & Trail Runs
Jan
09
27
San Diego
,
California
Trail Running
50K
Marathon
Ultramarathon
10 Mile
Relay
Perpetua Fatass 2027
Jan
09
27
Yachats
,
Oregon
Trail Running
20 Mile
50K
Ultramarathon
21K
Crystal Springs Trail Run
Jan
17
27
San Francisco
,
California
Trail Running
50K
Ultramarathon
Half Marathon
Marathon
Big Bend Ultra
Jan
17
27
,
Texas
Trail Running
10K
21K
50K
100K
Ultramarathon
Running the Rose
Jan
23
27
,
Texas
Trail Running
10K
100K
Ultramarathon
5K
20 Mile
Oracle Rumble
Jan
30
27
Tucson
,
Arizona
Trail Running
10K
5K
Half Marathon
Ultramarathon
50 Mile
Golden Gate Trail Run
Feb
06
27
San Francisco
,
California
Trail Running
50K
Half Marathon
Marathon
Ultramarathon
Elephant Mountain Trail Runs
Feb
06
27
Phoenix
,
Arizona
Trail Running
Ultramarathon
50K
50 Mile
10K
25K
Black Canyon Ultras
Feb
13
27
Phoenix
,
Arizona
Trail Running
Ultramarathon
50K
100K
Run Oak Island
Feb
13
27
Oak Island
,
North Carolina
Road Running
5K
Half Marathon
Marathon
10K
Ultramarathon
Death By a Mile
Feb
13
27
,
Louisiana
Trail Running
24 Hour
Ultramarathon
Lord Hill Trail Run
Feb
20
27
Everett
,
Washington
Trail Running
20 Mile
50K
Ultramarathon
10 Mile
5K
FOURmidable
Feb
20
27
Auburn
,
California
Trail Running
50K
Ultramarathon
Half Marathon
15K
Montara Mountain Trail Run
Feb
20
27
Pacifica
,
California
Trail Running
10K
Half Marathon
50K
Marathon
Ultramarathon
Sandhills Trail Race Series
Feb
20
27
,
South Carolina
Trail Running
10K
25K
50K
Ultramarathon
Grandmaster Ultras 2027
Feb
26
27
Mesquite
,
Nevada
Trail Running
50K
Ultramarathon
100K
100 Mile
50 Mile
Sycamore Canyon Trail Races
Feb
27
27
San Diego
,
California
Trail Running
100K
50K
Half Marathon
Ultramarathon
Relay
Cowtown Marathon
Feb
27
27
Fort Worth
,
Texas
Road Running
10K
5K
Half Marathon
Marathon
Ultramarathon
Antelope Canyon Ultra Marathons
Mar
06
27
Page
,
Arizona
Trail Running
50K
50 Mile
25K
Ultramarathon
Half Marathon
Old Pueblo Endurance Runs
Mar
06
27
Sonoita
,
Arizona
Trail Running
Marathon
50 Mile
Ultramarathon
Crooked Road 24 Hour Ultra
Mar
06
27
,
Virginia
Trail Running
24 Hour
Ultramarathon
Old West 50k, Marathon, Half Marathon
Mar
13
27
Julian
,
California
Trail Running
Half Marathon
50K
Marathon
Ultramarathon
Antelope Island Buffalo Run
Mar
13
27
Salt Lake City
,
Utah
Trail Running
Marathon
Ultramarathon
50K
50 Mile
100 Mile
The Pistol
Mar
13
27
,
Tennessee
Trail Running
10 Mile
100 Mile
50 Mile
Ultramarathon
50K
The Big Alta
Mar
19
27
San Rafael
,
California
Trail Running
50K
Ultramarathon
100K
28K
Chuckanut 50K
Mar
20
27
Bellingham
,
Washington
Trail Running
50K
Ultramarathon
VALENCIA Trail Race
Mar
20
27
Los Angeles
,
California
Trail Running
10K
Half Marathon
50K
Ultramarathon
Grasslands Trail Run
Mar
20
27
Fort Worth
,
Texas
Trail Running
Half Marathon
Marathon
50 Mile
Ultramarathon
100 Mile
Crown King Scramble
Mar
20
27
Phoenix
,
Arizona
Trail Running
50K
Ultramarathon
Redwood (Spring) Trail Run
Mar
20
27
Oakland
,
California
Trail Running
Half Marathon
Ultramarathon
50K
5K
25K
Badwater Cape Fear, presented by Mount to Coast
Mar
20
27
,
North Carolina
Trail Running
50K
50 Mile
Ultramarathon
Bluebonnet Trail Run: 50 Miler, 50K, Marathon, Half-Marathon, 10K, 5K
Mar
27
27
Austin
,
Texas
Trail Running
50 Mile
50K
10K
5K
Ultramarathon
Behind the Rocks Ultra
Apr
03
27
Moab
,
Utah
Trail Running
50K
50 Mile
Ultramarathon
Sierra Azul Trail Challenge
Apr
03
27
San Jose
,
California
Trail Running
50K
Ultramarathon
Half Marathon
Marathon
20 Mile
Genesee Valley Ultra
Apr
03
27
,
Maryland
Trail Running
12 Hour
6 Hour
24 Hour
Ultramarathon
Beast of the Brazos
Apr
03
27
Waco
,
Texas
Trail Running
10 Mile
5K
50K
50 Mile
Ultramarathon
American River
Apr
03
27
Folsom
,
California
Trail Running
10 Mile
50 Mile
Ultramarathon
Half Marathon
Marathon
The Old Six Day
Apr
05
27
,
New Jersey
Trail Running
Ultramarathon
Ancient Lakes 50M/50K/25K/10K
Apr
10
27
Quincy
,
Washington
Trail Running
10K
25K
50K
50 Mile
Ultramarathon