Ultramarathons in the United States
57 ultramarathons in the United States.
The next one is the Javelina Jundred 100 Mile on 31 October 2026.
The flattest is the Cowtown Ultra Marathon (270 m of climbing); the hilliest is the Cocodona 250 (11,870 m).
For cool racing conditions, the Cowtown Ultra Marathon usually starts around 9°C.
Javelina Jundred 100 Mile
Fountain Hills, United States
31 Oct 2026In 6 days
Gain
1,920 m
Start temp
14°C
Entry
$525
Top 10, men 40–49: No data
161 kmTrailOpen entrydesert
Javelina Jundred 100K
Fountain Hills, United States
31 Oct 2026In 6 days
Gain
1,205 m
Start temp
14°C
Entry
$375
Top 10, men 40–49: No data
100 kmTrailOpen entrydesert
Pinhoti 100
Heflin, United States
7 Nov 2026In 13 days
Gain
4,270 m
Start temp
12°C
Entry
$350
Top 10, men 40–49: No data
161.5 kmTrailOpen entryhilly
UTMB
Pacific Trails California 50K
Santa Ynez, United States
14 Nov 2026In 20 days
Gain
1,550 m
Start temp
12°C
Entry
$170
Top 10, men 40–49: No data
51 kmTrailOpen entryscenic
Tunnel Hill 100
Vienna, United States
14 Nov 2026In 20 days
Gain
300 m
Start temp
4°C
Entry
$350
Top 10, men 40–49: No data
160.9 kmTrailOpen entrysmall field
JFK 50 Mile
Boonsboro, United States
21 Nov 2026In 27 days
Gain
600 m
Start temp
2°C
Entry
$250
Top 10, men 40–49: No data
80.8 kmMixed road & trailOpen entryhistoric
Bandera 100K
Bandera, United States
9 Jan 2027In 3 months
Gain
1,950 m
Start temp
7°C
Entry
$245
Top 10, men 40–49: No data
100 kmTrailOpen entryhilly
HURT 100
Honolulu, United States
16 Jan 2027In 3 months
Gain
7,470 m
Start temp
19°C
Entry
$425
Top 10, men 40–49: No data
160.9 kmTrailLotteryhilly
Sean O'Brien 100K
Calabasas, United States
30 Jan 2027In 3 months
Gain
4,017 m
Start temp
11°C
Entry
$300
Top 10, men 40–49: No data
99.3 kmTrailOpen entryhilly
Rocky Raccoon 100
Huntsville, United States
6 Feb 2027In 3 months
Gain
1,900 m
Start temp
10°C
Entry
$310
Top 10, men 40–49: No data
161 kmTrailOpen entrysmall field
UTMB
Black Canyon 100K
Mayer, United States
13 Feb 2027In 4 months
Gain
1,590 m
Start temp
1°C
Entry
$365
Top 10, men 40–49: No data
100 kmTrailOpen entrydesert
UTMB
Black Canyon 50K
Mayer, United States
14 Feb 2027In 4 months
Gain
610 m
Start temp
1°C
Entry
$265
Top 10, men 40–49: No data
51.8 kmTrailOpen entrydesert
Cowtown Ultra Marathon
Fort Worth, United States
28 Feb 2027In 4 months
Gain
270 m
Start temp
9°C
Entry
$140
Top 10, men 40–49: No data
50 kmOpen entrysmall field
Antelope Canyon 55K
Page, United States
6 Mar 2027In 4 months
Gain
1,040 m
Start temp
4°C
Entry
$255
Top 10, men 40–49: No data
55 kmTrailOpen entrydesert
Antelope Canyon 50 Mile
Page, United States
6 Mar 2027In 4 months
Gain
1,530 m
Start temp
4°C
Entry
$310
Top 10, men 40–49: No data
83.2 kmTrailOpen entrydesert
Way Too Cool 50K
Cool, United States
6 Mar 2027In 4 months
Gain
1,400 m
Start temp
5°C
Entry
$215
Top 10, men 40–49: No data
50 kmTrailOpen entryscenic
Chuckanut 50K
Bellingham, United States
20 Mar 2027In 5 months
Gain
1,525 m
Start temp
5°C
Entry
—
Top 10, men 40–49: No data
50 kmTrailOpen entryhilly
Georgia Death Race
Blairsville, United States
27 Mar 2027In 5 months
Gain
4,875 m
Start temp
9°C
Entry
$265
Top 10, men 40–49: No data
119 kmTrailOpen entryhilly
American River 50 Mile
Folsom, United States
3 Apr 2027In 5 months
Gain
1,675 m
Start temp
8°C
Entry
$340
Top 10, men 40–49: No data
80.5 kmMixed road & trailOpen entryhistoric
Umstead 100
Raleigh, United States
3 Apr 2027In 5 months
Gain
2,210 m
Start temp
11°C
Entry
$225
Top 10, men 40–49: No data
160.9 kmTrailOpen entryhistoric
UTMB
Desert Rats 100K
Fruita, United States
10 Apr 2027In 5 months
Gain
2,050 m
Start temp
5°C
Entry
$325
Top 10, men 40–49: No data
100 kmTrailOpen entrydesert
UTMB
Desert Rats 50K
Fruita, United States
10 Apr 2027In 5 months
Gain
1,050 m
Start temp
4°C
Entry
$205
Top 10, men 40–49: No data
48 kmTrailOpen entrydesert
UTMB
Canyons 100 Mile
Foresthill, United States
23 Apr 2027In 6 months
Gain
5,550 m
Start temp
16°C
Entry
$515
Top 10, men 40–49: No data
161 kmTrailOpen entryhilly
UTMB
Canyons 100K
Foresthill, United States
24 Apr 2027In 6 months
Gain
3,750 m
Start temp
5°C
Entry
$395
Top 10, men 40–49: No data
100 kmTrailOpen entryhilly
UTMB
Canyons 50K
Auburn, United States
24 Apr 2027In 6 months
Gain
1,700 m
Start temp
10°C
Entry
$280
Top 10, men 40–49: No data
50 kmTrailOpen entryhilly
Miwok 100K
Stinson Beach, United States
1 May 2027In 6 months
Gain
3,505 m
Start temp
10°C
Entry
$310
Top 10, men 40–49: No data
100 kmTrailOpen entryscenic
Cocodona 250
Black Canyon City, United States
2 May 2027In 6 months
Gain
11,870 m
Start temp
17°C
Entry
$2,045
Top 10, men 40–49: No data
408 kmTrailOpen entrydesert
Ice Age Trail 50
La Grange, United States
8 May 2027In 6 months
Gain
1,600 m
Start temp
7°C
Entry
—
Top 10, men 40–49: No data
80.5 kmTrailOpen entryhistoric
Cruel Jewel 100
Blue Ridge, United States
14 May 2027In 7 months
Gain
10,060 m
Start temp
21°C
Entry
$405
Top 10, men 40–49: No data
166.6 kmTrailOpen entryhilly
Massanutten Mountain Trails 100
Fort Valley, United States
15 May 2027In 7 months
Gain
5,640 m
Start temp
12°C
Entry
$250
Top 10, men 40–49: No data
161 kmTrailOpen entryhilly
UTMB
Rothrock 50K
Boalsburg, United States
15 May 2027In 7 months
Gain
1,550 m
Start temp
12°C
Entry
$245
Top 10, men 40–49: No data
53.3 kmTrailOpen entryhilly
UTMB
Ultra Trail Chattanooga 100K
Chattanooga, United States
5 Jun 2027In 7 months
Gain
2,435 m
Start temp
19°C
Entry
$445
Top 10, men 40–49: No data
100 kmTrailOpen entryhilly
UTMB
Ultra Trail Chattanooga 50K
Chattanooga, United States
5 Jun 2027In 7 months
Gain
1,165 m
Start temp
19°C
Entry
$300
Top 10, men 40–49: No data
50.5 kmTrailOpen entryhilly
Bighorn 100
Dayton, United States
18 Jun 2027est.In 8 months
Gain
6,250 m
Start temp
16°C
Entry
$475
Top 10, men 40–49: No data
161 kmTrailOpen entryhilly
Black Hills 100
Sturgis, United States
25 Jun 2027In 8 months
Gain
5,114 m
Start temp
22°C
Entry
$400
Top 10, men 40–49: No data
174 kmTrailOpen entryhilly
Western States 100
Olympic Valley, United States
26 Jun 2027In 8 months
Gain
5,490 m
Start temp
9°C
Entry
$575
Top 10, men 40–49: 20:14 (7:33/km)
161 kmTrailLottery + qualifyinghistoric
Hardrock 100
Silverton, United States
9 Jul 2027In 8 months
Gain
10,190 m
Start temp
7°C
Entry
$450
Top 10, men 40–49: No data
163.8 kmTrailLottery + qualifyingaltitude
Silver Rush 50 Run
Leadville, United States
10 Jul 2027In 8 months
Gain
2,440 m
Start temp
5°C
Entry
$160
Top 10, men 40–49: No data
80.5 kmTrailOpen entryaltitude
Cascade Crest 100
Easton, United States
16 Jul 2027In 9 months
Gain
7,000 m
Start temp
18°C
Entry
$350
Top 10, men 40–49: No data
160.9 kmTrailLotteryscenic
Vermont 100 Endurance Race
West Windsor, United States
17 Jul 2027In 9 months
Gain
5,180 m
Start temp
17°C
Entry
$425
Top 10, men 40–49: No data
161 kmMixed road & trailLotteryhistoric
Badwater 135
Death Valley, United States
19 Jul 2027In 9 months
Gain
4,450 m
Start temp
41°C
Entry
$1,695
Top 10, men 40–49: No data
217 kmQualifying timedeserthilly
UTMB
Speedgoat 50K
Snowbird, United States
24 Jul 2027In 9 months
Gain
3,450 m
Start temp
16°C
Entry
$175
Top 10, men 40–49: No data
50 kmTrailOpen entryaltitude
Leadville Trail 100 Run
Leadville, United States
21 Aug 2027In 10 months
Gain
4,070 m
Start temp
5°C
Entry
$495
Top 10, men 40–49: No data
160.4 kmTrailLottery + qualifyingaltitude
Superior 100
Two Harbors, United States
10 Sept 2027est.In 11 months
Gain
5,290 m
Start temp
14°C
Entry
$335
Top 10, men 40–49: No data
165.6 kmTrailLotteryscenic
Wasatch Front 100
Kaysville, United States
10 Sept 2027est.In 11 months
Gain
7,315 m
Start temp
16°C
Entry
$325
Top 10, men 40–49: No data
161 kmTrailLotteryaltitude
Mogollon Monster 100
Payson, United States
11 Sept 2027In 11 months
Gain
4,846 m
Start temp
12°C
Entry
$355
Top 10, men 40–49: No data
162.4 kmTrailOpen entryaltitude
Run Rabbit Run 100
Steamboat Springs, United States
17 Sept 2027In 11 months
Gain
6,700 m
Start temp
14°C
Entry
$475
Top 10, men 40–49: No data
161 kmTrailOpen entryaltitude
UTMB
Snowbasin by UTMB 58K
Huntsville, United States
18 Sept 2027In 11 months
Gain
1,800 m
Start temp
6°C
Entry
$250
Top 10, men 40–49: No data
59 kmTrailOpen entryscenic
Bear 100
Logan, United States
24 Sept 2027In 11 months
Gain
6,195 m
Start temp
7°C
Entry
$350
Top 10, men 40–49: No data
161 kmTrailLottery + qualifyinghilly
UTMB
Grindstone 100
Swoope, United States
24 Sept 2027In 11 months
Gain
6,400 m
Start temp
22°C
Entry
$400
Top 10, men 40–49: No data
167.4 kmTrailOpen entryhilly
UTMB
Grindstone 100K
Swoope, United States
25 Sept 2027In 11 months
Gain
3,350 m
Start temp
15°C
Entry
$300
Top 10, men 40–49: No data
100 kmTrailOpen entryhilly
UTMB
Kodiak 100 Mile
Big Bear Lake, United States
8 Oct 2027est.In 11 months
Gain
4,875 m
Start temp
19°C
Entry
$450
Top 10, men 40–49: No data
161 kmTrailOpen entryaltitude
UTMB
Kodiak 100K
Big Bear Lake, United States
9 Oct 2027est.In 11 months
Gain
3,145 m
Start temp
8°C
Entry
$350
Top 10, men 40–49: No data
101.1 kmTrailOpen entryaltitude
Bobcat Trail 50K
Colorado Springs, United States
16 Oct 2027est.In 12 months
Gain
1,095 m
Start temp
3°C
Entry
$165
Top 10, men 40–49: No data
49.9 kmTrailOpen entrysmall field
Cave Creek Thriller 50K
Peoria, United States
16 Oct 2027est.In 12 months
Gain
855 m
Start temp
18°C
Entry
$165
Top 10, men 40–49: No data
50.2 kmTrailOpen entrydesert
Lake Sonoma 100 Mile
Geyserville, United States
16 Oct 2027est.In 12 months
Gain
7,640 m
Start temp
12°C
Entry
$435
Top 10, men 40–49: No data
161.7 kmTrailOpen entryhilly
Lake Sonoma 50
Geyserville, United States
16 Oct 2027est.In 12 months
Gain
3,235 m
Start temp
12°C
Entry
$235
Top 10, men 40–49: No data
82.9 kmTrailOpen entryhilly