| Month |
Race Name |
Length |
Elev. Gain (ft/mi) |
Location |
Near |
|
| July |
Hardrock Hundred Mile Endurance Run |
100 mi (160.9 km) |
33,992 ft (340 ft/mi) |
CO, United States |
Silverton |
|
| September |
Wasatch Front 100 Mile Endurance Run |
100 mi (160.9 km) |
26,882 ft (269 ft/mi) |
UT, United States |
Layton |
|
| January |
H.U.R.T. 100 |
100 mi (160.9 km) |
24,935 ft (249 ft/mi) |
HI, United States |
Honolulu |
|
| September |
Angeles Crest 100-Mile Endurance Run |
100 mi (160.9 km) |
21,610 ft (216 ft/mi) |
CA, United States |
Wrightwood |
|
| September |
The Bear 100 |
100 mi (160.9 km) |
21,061 ft (211 ft/mi) |
ID, United States |
Preston |
|
| August |
Leadville Trail 100 |
100 mi (160.9 km) |
15,600 ft (156 ft/mi) |
CO, United States |
Leadville |
|
| June |
Western States Endurance Run |
100 mi (160.9 km) |
15,540 ft (155 ft/mi) |
CA, United States |
Fresno |
|
| October |
San Diego 100 Mile Endurance Run |
100 mi (160.9 km) |
12,000 ft (120 ft/mi) |
CA, United States |
Lake Morena |
|
| February |
Rocky Raccoon 100 |
100 mi (160.9 km) |
5,400 ft (54 ft/mi) |
TX, United States |
Huntsville |
|
| January |
Bandera |
100 km (62.1 mi) |
10,844 ft (175 ft/mi) |
TX, United States |
San Antonio |
|
| August |
Green Lakes Endurance Runs |
100 km (62.1 mi) |
|
NY, United States |
Fayetteville |
|
| January |
H.U.R.T. 100 |
100 km (62.1 mi) |
|
HI, United States |
Honolulu |
|
| December |
Hellgate 100K |
100 km (62.1 mi) |
|
VA, United States |
Lynchburg |
|
| September |
Sierra Nevada Endurance Run |
53.2 mi (85.6 km) |
5,090 ft (96 ft/mi) |
CA, United States |
Sacramento |
|
| April |
Rockin K Trail Run |
50.6 mi (81.4 km) |
|
KS, United States |
Ellsworth |
|
| June |
Squaw Peak 50 Mile Trail Run |
50 mi (80.5 km) |
12,000 ft (240 ft/mi) |
UT, United States |
Provo |
|
| March |
Bel Monte Endurance Run |
50 mi (80.5 km) |
11,009 ft (220 ft/mi) |
VA, United States |
Charlottesville |
|
| September |
Moab's Alpine To Slickrock 50 Mile Race |
50 mi (80.5 km) |
11,003 ft (220 ft/mi) |
UT, United States |
Moab |
|
| October |
Dick Collins Firetrails 50 |
50 mi (80.5 km) |
7,820 ft (156 ft/mi) |
CA, United States |
Castro Valley |
|
| October |
Tussey Mountainback Ultramarathon and Relay |
50 mi (80.5 km) |
5,035 ft (101 ft/mi) |
PA, United States |
Boalsburg |
|
| August |
Baker Trail UltraChallenge |
50 mi (80.5 km) |
|
PA, United States |
Pittsburgh |
|
| April |
The North Face Endurance Challenge |
50 mi (80.5 km) |
|
NY, United States |
Fort Montgomery |
|
| March |
Antelope Island Buffalo Run |
50 mi (80.5 km) |
|
UT, United States |
Syracuse |
|
| March |
Land Between the Lakes Trail Runs |
50 mi (80.5 km) |
|
KY, United States |
Grand Rivers |
|
| February |
Twin Peaks Ultra 50/50 |
50 mi (80.5 km) |
|
CA, United States |
Rancho Santa Margarita |
|
| February |
Rocky Raccoon 100 |
50 mi (80.5 km) |
|
TX, United States |
Huntsville |
|
| September |
Vermont 50 Ultra Run and Mt Bike |
50 mi (80.5 km) |
|
VT, United States |
Brownsville |
|
| March |
Land Between the Lakes Trail Runs |
60 km (37.3 mi) |
|
KY, United States |
Grand Rivers |
|
| December |
Muir Beach Trail Run |
50 km (31.1 mi) |
7,540 ft (242 ft/mi) |
CA, United States |
Muir Beach |
|
| March |
Bel Monte Endurance Run |
50 km (31.1 mi) |
6,300 ft (203 ft/mi) |
VA, United States |
Charlottesville |
|
| December |
Rodeo Beach Trail Run |
50 km (31.1 mi) |
6,180 ft (199 ft/mi) |
CA, United States |
Rodeo Beach |
|
| January |
Bandera |
50 km (31.1 mi) |
5,422 ft (174 ft/mi) |
TX, United States |
San Antonio |
|
| December |
OTHTC High Desert 50 km Ultra & 30km |
50 km (31.1 mi) |
2,400 ft (77 ft/mi) |
CA, United States |
Ridgecrest |
|
| May |
Red Mountain 50k |
50 km (31.1 mi) |
2,203 ft (71 ft/mi) |
UT, United States |
St. George |
|
| October |
Goblin Valley Ultramarathon |
50 km (31.1 mi) |
2,000 ft (64 ft/mi) |
UT, United States |
Green River |
|
| May |
Prickly Pear |
50 km (31.1 mi) |
200 ft (6 ft/mi) |
TX, United States |
San Antonio |
|
| November |
Run the River Marathon & Ultramarathon |
50 km (31.1 mi) |
|
CA, United States |
Folsom |
|
| August |
Green Lakes Endurance Runs |
50 km (31.1 mi) |
|
NY, United States |
Fayetteville |
|
| April |
The North Face Endurance Challenge |
50 km (31.1 mi) |
|
NY, United States |
Fort Montgomery |
|
| March |
Hinte-Anderson Trail (HAT) Run |
50 km (31.1 mi) |
|
MD, United States |
Aberdeen |
|
| March |
Antelope Island Buffalo Run |
50 km (31.1 mi) |
|
UT, United States |
Syracuse |
|
| February |
Louisville's Lovin' The Hills 50K and 15 miler |
50 km (31.1 mi) |
|
KY, United States |
Louisville |
|
| February |
Twin Peaks Ultra 50/50 |
50 km (31.1 mi) |
|
CA, United States |
Rancho Santa Margarita |
|
| November |
Rockledge Rumble |
50 km (31.1 mi) |
|
TX, United States |
Dallas/Fort Worth |
|
| December |
Pure Satisfaction |
48 km (29.8 mi) |
|
BC, Canada |
North Vancouver |
|
| November |
Quad Dipsea |
28.4 mi (45.7 km) |
9,276 ft (327 ft/mi) |
CA, United States |
Mill Valley |
|
| March |
Terrapin Mountain Marathon & 1/2 Marathon |
26.9 mi (43.3 km) |
7,560 ft (281 ft/mi) |
VA, United States |
Sedalia |
|
| June |
NipMuck Trail Marathon |
26.4 mi (42.5 km) |
2,200 ft (83 ft/mi) |
CT, United States |
Ashford |
|
| April |
Rockin K Trail Run |
26.3 mi (42.3 km) |
|
KS, United States |
Ellsworth |
|
| September |
Mid Mountain Marathon |
26.2 mi (42.2 km) |
2,500 ft (95 ft/mi) |
UT, United States |
Park City |
|
| May |
Sky Mesa Pass Trail Marathon |
26.2 mi (42.2 km) |
|
CO, United States |
Grand Junction |
|
| March |
Land Between the Lakes Trail Runs |
26.2 mi (42.2 km) |
|
KY, United States |
Grand Rivers |
|
| November |
Run the River Marathon & Ultramarathon |
26 mi (41.8 km) |
|
CA, United States |
Folsom |
|
| December |
Muir Beach Trail Run |
33 km (20.5 mi) |
4,420 ft (216 ft/mi) |
CA, United States |
Muir Beach |
|
| December |
Rodeo Beach Trail Run |
30 km (18.6 mi) |
4,000 ft (215 ft/mi) |
CA, United States |
Rodeo Beach |
|
| December |
OTHTC High Desert 50 km Ultra & 30km |
30 km (18.6 mi) |
|
CA, United States |
Ridgecrest |
|
| June |
Wahsatch Steeplechase |
17.5 mi (28.2 km) |
5,800 ft (331 ft/mi) |
UT, United States |
Salt Lake City |
|
| September |
Imogene Pass Trail Run |
17.1 mi (27.5 km) |
5,310 ft (311 ft/mi) |
CO, United States |
Ouray |
|
| August |
Jupiter Peak Steeplechase |
16 mi (25.7 km) |
3,500 ft (219 ft/mi) |
UT, United States |
Park City |
|
| September |
Lead King Loop |
25 km (15.5 mi) |
4,000 ft (258 ft/mi) |
CO, United States |
Marble |
|
| January |
Bandera |
25 km (15.5 mi) |
2,990 ft (193 ft/mi) |
TX, United States |
San Antonio |
|
| August |
BULLDOG 25K MALIBU CANYON |
25 km (15.5 mi) |
2,200 ft (142 ft/mi) |
CA, United States |
Malibu |
|
| October |
Goblin Valley Ultramarathon |
25 km (15.5 mi) |
1,000 ft (65 ft/mi) |
UT, United States |
Green River |
|
| March |
Antelope Island Buffalo Run |
25 km (15.5 mi) |
|
UT, United States |
Syracuse |
|
| March |
Bel Monte Endurance Run |
25 km (15.5 mi) |
|
VA, United States |
Charlottesville |
|
| December |
Stay Fit Trail Run |
25 km (15.5 mi) |
|
TX, United States |
Tyler |
|
| December |
Hark the Herald Angels Run 12K & 25K |
25 km (15.5 mi) |
|
CA, United States |
Tiburon |
|
| February |
Louisville's Lovin' The Hills 50K and 15 miler |
15 mi (24.1 km) |
|
KY, United States |
Louisville |
|
| December |
Pure Satisfaction |
24 km (14.9 mi) |
|
BC, Canada |
North Vancouver |
|
| March |
Land Between the Lakes Trail Runs |
23 km (14.3 mi) |
|
KY, United States |
Grand Rivers |
|
| May |
XTERRA Malibu Creek Trail Challenge Scramble |
14 mi (22.5 km) |
|
CA, United States |
Calabasas |
|
| December |
Run at the Rock |
14 mi (22.5 km) |
|
NC, United States |
Burlington |
|
| March |
Terrapin Mountain Marathon & 1/2 Marathon |
13.1 mi (21.1 km) |
3,250 ft (248 ft/mi) |
VA, United States |
Sedalia |
|
| September |
The Napa Valley Stomp 1/2 marathon, 10k and 5k Trail Run |
13.1 mi (21.1 km) |
|
CA, United States |
Napa |
|
| September |
Tough As Granite Half Marathon |
13.1 mi (21.1 km) |
|
CA, United States |
Granite Bay |
|
| April |
The North Face Endurance Challenge |
13.1 mi (21.1 km) |
|
NY, United States |
Fort Montgomery |
|
| February |
XTERRA Trail Race Series - Runnin The Rocks - 10K Conyers, Georgia |
13.1 mi (21.1 km) |
|
GA, United States |
Conyers |
|
| September |
Golden Leaf Half Marathon |
13 mi (20.9 km) |
1,700 ft (131 ft/mi) |
CO, United States |
Aspen |
|
| December |
Rodeo Beach Trail Run |
20 km (12.4 mi) |
2,180 ft (176 ft/mi) |
CA, United States |
Rodeo Beach |
|
| December |
Muir Beach Trail Run |
17 km (10.6 mi) |
3,120 ft (294 ft/mi) |
CA, United States |
Muir Beach |
|
| September |
Sunrise over Sonoma Trail Run |
10 mi (16.1 km) |
|
CA, United States |
Healdsburg |
|
| August |
The East Bay Enchantment |
10 mi (16.1 km) |
|
CA, United States |
Castro Valley |
|
| December |
Bear Creek 10-Mile Trail Run |
10 mi (16.1 km) |
|
VA, United States |
Cumberland |
|
| February |
XTERRA Trail Race Series - Runnin The Rocks - 10K Conyers, Georgia |
15 km (9.3 mi) |
|
GA, United States |
Conyers |
|
| November |
XTERRA Topanga Turkey Trot |
15 km (9.3 mi) |
|
CA, United States |
Calabasas |
|
| August |
BULLDOG 25K MALIBU CANYON |
8 mi (12.9 km) |
4,000 ft (500 ft/mi) |
CA, United States |
Malibu |
|
| September |
Lead King Loop |
12.5 km (7.8 mi) |
2,000 ft (256 ft/mi) |
CO, United States |
Marble |
|
| December |
Hark the Herald Angels Run 12K & 25K |
12 km (7.5 mi) |
|
CA, United States |
Tiburon |
|
| December |
Pure Satisfaction |
12 km (7.5 mi) |
|
BC, Canada |
North Vancouver |
|
| December |
Run at the Rock |
7 mi (11.3 km) |
|
NC, United States |
Burlington |
|
| December |
Muir Beach Trail Run |
11 km (6.8 mi) |
1,900 ft (279 ft/mi) |
CA, United States |
Muir Beach |
|
| October |
Mount Tamalpais 10k Trail Run |
10 km (6.2 mi) |
|
CA, United States |
Mill Valley |
|
| September |
The Napa Valley Stomp 1/2 marathon, 10k and 5k Trail Run |
10 km (6.2 mi) |
|
CA, United States |
Napa |
|
| September |
Tough As Granite Half Marathon |
10 km (6.2 mi) |
|
CA, United States |
Granite Bay |
|
| August |
The East Bay Enchantment |
10 km (6.2 mi) |
|
CA, United States |
Castro Valley |
|
| August |
The Northstar at Tahoe™ Nirvana Mountain Trail run |
10 km (6.2 mi) |
|
CA, United States |
Truckee |
|
| July |
The Kirkwood Klimb Mountain Trail Run |
10 km (6.2 mi) |
|
CA, United States |
Kirkwood |
|
| April |
The North Face Endurance Challenge |
10 km (6.2 mi) |
|
NY, United States |
Fort Montgomery |
|
| February |
XTERRA Trail Race Series - Runnin The Rocks - 10K Conyers, Georgia |
10 km (6.2 mi) |
|
GA, United States |
Conyers |
|
| November |
XTERRA Topanga Turkey Trot |
10 km (6.2 mi) |
|
CA, United States |
Calabasas |
|
| December |
Stay Fit Trail Run |
10 km (6.2 mi) |
|
TX, United States |
Tyler |
|
| September |
Heritage Trail 10K |
10 km (6.2 mi) |
|
VA, United States |
Palmyra |
|
| July |
Mountain Challenge Run |
10 km (6.2 mi) |
|
UT, United States |
Park City |
|
| December |
Rodeo Beach Trail Run |
8 km (5 mi) |
1,100 ft (220 ft/mi) |
CA, United States |
Rodeo Beach |
|
| September |
Sunrise over Sonoma Trail Run |
5 mi (8 km) |
|
CA, United States |
Healdsburg |
|
| May |
XTERRA Malibu Creek Trail Challenge Scramble |
4 mi (6.4 km) |
|
CA, United States |
Calabasas |
|
| April |
Flatwoods Four Trail Race |
4 mi (6.4 km) |
|
FL, United States |
Tampa |
|
| August |
Squaw Valley Mountain Run |
3.6 mi (5.8 km) |
2,000 ft (556 ft/mi) |
CA, United States |
Truckee |
|
| September |
The Napa Valley Stomp 1/2 marathon, 10k and 5k Trail Run |
5 km (3.1 mi) |
|
CA, United States |
Napa |
|
| September |
Tough As Granite Half Marathon |
5 km (3.1 mi) |
|
CA, United States |
Granite Bay |
|
| August |
The East Bay Enchantment |
5 km (3.1 mi) |
|
CA, United States |
Castro Valley |
|
| July |
The Kirkwood Klimb Mountain Trail Run |
5 km (3.1 mi) |
|
CA, United States |
Kirkwood |
|
| November |
XTERRA Topanga Turkey Trot |
5 km (3.1 mi) |
|
CA, United States |
Calabasas |
|
| July |
Mountain Challenge Run |
5 km (3.1 mi) |
|
UT, United States |
Park City |
|
|