Finndu
ExploreWishlistMy Races
For Organisers

Trail ultramarathons in USA

295 upcoming trail ultramarathons in USA.

242 cities
Busiest: November
From €13
See all 295 races
Distance
5K races10K racesHalf marathonsMarathonsUltramarathons
Terrain
TrailRoad
See all 295 races
Upcoming races
4th Machete Trail Madness - 200mi

4th Machete Trail Madness

Perris, USA
Oct 30·Tomorrow·Registration TBC·From €113
Hell Creek 100 Race Series - 140 Mile

Hell Creek 100 Race Series

Sylvan Grove, USA
Oct 30·Tomorrow
2nd WFT Dark Sky 220 - 50km
50K

2nd WFT Dark Sky 220 - 50km

Lock Haven, USA
Oct 30·Tomorrow
4th Machete Trail Madness 200 Miler
321.9km

4th Machete Trail Madness 200 Miler

Perris, USA
Oct 30·Tomorrow·Registration TBC
Endless Trails 2026 Race Series - 50K

Endless Trails 2026 Race Series

Seattle, USA
Oct 31·This weekend
10th Naatsisaan 50k Trail Ultra
50K

10th Naatsisaan 50k Trail Ultra

Navajo Mountain, USA
Oct 31·This weekend
2nd Camino De Los Muertos - 100km

2nd Camino De Los Muertos

Lewisville, USA
Oct 31·This weekend·Registration TBC·From €9
9th Fall Back into the Trails 100km

9th Fall Back into the Trails 100km

Lagrangeville, USA
Oct 31·This weekend
The Next Loop Endurance Series | New England 2026 — The Next Loop 12HR Challenge - 12HR (120 km)

The Next Loop Endurance Series | New England 2026 — The Next Loop 12HR Challenge

Wrentham, USA
Oct 31·This weekend·Registration TBC
Jackson County Ultras - 100K relay (5 person)

Jackson County Ultras

Brownstown, USA
Oct 31·This weekend·Closes Nov 20·From €30
16th Cougar Mountain Trail Run - 50K
50K

16th Cougar Mountain Trail Run - 50K

Newcastle, USA
Oct 31·This weekend·Registration TBC
Cougar Mountain Trail Run Series (October) - 50K

Cougar Mountain Trail Run Series (October)

Bellevue, USA
Oct 31·This weekend·Closed
Pumpkin Butt 50K
50K

Pumpkin Butt 50K

Kennesaw, USA
Oct 31·This weekend·Free
Fall Creek Beast 50K & Half Marathon Trail Race

Fall Creek Beast 50K & Half Marathon Trail Race

Swan Valley, USA
Oct 31·This weekend·From €51
Ozark Trail 100 Mile Endurance Run - 100 Mile (101 miles, finish at 100.9 miles)

Ozark Trail 100 Mile Endurance Run

Steelville, USA
Oct 31·This weekend·Registration TBC
3rd Terror Trails Ultra - 50km
50K

3rd Terror Trails Ultra - 50km

Waxhaw, USA
Oct 31·This weekend·Registration TBC
Texas Outlaw Running Upcoming Events 2026 to 2027 - 100K

Texas Outlaw Running Upcoming Events 2026 to 2027

Longview, USA
Oct 31·This weekend
Thunder River - 50K

Thunder River

Cascade Locks, USA
Oct 31·This weekend·Closed·From €96
16th Fire on the Mountain 50k Ultra Marathon - 32.8mi

16th Fire on the Mountain 50k Ultra Marathon

Flintstone, USA
Nov 1·This weekend·Closes Nov 1·From €61
4th Lake Vista Lunatics Run - 12h
43.2km

4th Lake Vista Lunatics Run - 12h

Borden, USA
Nov 1·This weekend·From €65
Lynchburg Ultra Series - 50 Mile

Lynchburg Ultra Series

Lynchburg, USA
Nov 1·This weekend·Closed
2nd Ferris Fifty - 50km
50K

2nd Ferris Fifty - 50km

Minden, USA
Nov 1·This weekend·Registration TBC
5th Autumn Squatch 50km Race
50K

5th Autumn Squatch 50km Race

Lewis Center, USA
Nov 1·This weekend·From €39
18th FATS 50K Trail Race
50K

18th FATS 50K Trail Race

North Augusta, USA
Nov 1·This weekend
9th Fall Back into the Trails 50km

9th Fall Back into the Trails 50km

Lagrangeville, USA
Nov 1·This weekend·Registration TBC
4th Mamba 100 Miles - 100mi
160.9km

4th Mamba 100 Miles - 100mi

Memphis, USA
Nov 6·In 8 days·Registration TBC
Big Texas Ultra - 100K Championship

Big Texas Ultra

Johnson City, USA
Nov 6·In 8 days
Mamba 100 - 100 Miles

Mamba 100

Memphis, USA
Nov 6·In 8 days
4th Mamba 50 Km - 50K
50K

4th Mamba 50 Km - 50K

Memphis, USA
Nov 6·In 8 days·Registration TBC
14th tBunk Endurance Challenge - 200mi

14th tBunk Endurance Challenge

La Grange, USA
Nov 6·In 8 days·Closes Nov 1·From €157
9th Miner 49er - 50km

9th Miner 49er

Dubuque, USA
Nov 7·In 9 days·Closed·From €61
8th Screaming Monkey 50 Miles Race - 50M
80.5km

8th Screaming Monkey 50 Miles Race - 50M

Keithville, USA
Nov 7·In 9 days
4th Big Texas Ultra (Qualifiers Only) - 100K
100K

4th Big Texas Ultra (Qualifiers Only) - 100K

Johnston City, USA
Nov 7·In 9 days
Big Texas Ultra - 100K
100K

Big Texas Ultra - 100K

Georgetown, USA
Nov 7·In 9 days·From €139
14th Paleozoic Trail Runs - Silurian Fall III - 50km

14th Paleozoic Trail Runs - Silurian Fall III

Palos Park, USA
Nov 7·In 9 days·Closes Nov 5·From €57
2nd Liberty's Lost Treasure - 50km
50K

2nd Liberty's Lost Treasure - 50km

Guthrie, USA
Nov 7·In 9 days·Closes Nov 3·From €104
3rd Mingus Madness - 50km
50K

3rd Mingus Madness - 50km

Prescott Valley, USA
Nov 7·In 9 days
Ferris 50 Endurance Run - 50 Mile

Ferris 50 Endurance Run

Gardnerville, USA
Nov 7·In 9 days·From €17
40/50 Mile Challenge - Pinnacle Mountain - 50M

40/50 Mile Challenge - Pinnacle Mountain

Roland, USA
Nov 7·In 9 days·From €87
44th Mountain Masochist 100km Trail Run
100K

44th Mountain Masochist 100km Trail Run

Montebello, USA
Nov 7·In 9 days·Registration TBC
19th Pinhoti 100 Mile - 100mi
160.9km

19th Pinhoti 100 Mile - 100mi

Heflin, USA
Nov 7·In 9 days·Closed·From €304
Screaming Monkey 100 - 100 Mile

Screaming Monkey 100

Shreveport, USA
Nov 7·In 9 days
5th Mental Health Ultra Marathon - 50km

5th Mental Health Ultra Marathon

Newnan, USA
Nov 7·In 9 days·Closes Oct 31·From €30
15th Lake Chabot 50 km Trail Run - 50K

15th Lake Chabot 50 km Trail Run

Castro Valley, USA
Nov 7·In 9 days·Registration TBC
7th Wild Florida 50 km Race - 50K
50K

7th Wild Florida 50 km Race - 50K

Canttell, USA
Nov 7·In 9 days
26th Stone Cat - 100 km

26th Stone Cat

Ipswich, USA
Nov 7·In 9 days·Registration TBC·From €78
14th tBunk Endurance Challenge 100 Mile
162.5km

14th tBunk Endurance Challenge 100 Mile

La Grange, USA
Nov 7·In 9 days·Closes Nov 1·From €122
6th Noland Trail 50 km Race - 50K
50K

6th Noland Trail 50 km Race - 50K

Newport News, USA
Nov 7·In 9 days·From €87
11th Sanders Saunter 50k

11th Sanders Saunter 50k

Lawrence, USA
Nov 7·In 9 days
Stone Mill 50 Miles 2026
80.5km

Stone Mill 50 Miles 2026

Montgomery Village, USA
Nov 7·In 9 days·From €59
17th Grand Ridge 50 Km Trail Run - 50K
50K

17th Grand Ridge 50 Km Trail Run - 50K

Issaquah, USA
Nov 7·In 9 days
26th Mendon 50K Trail Run
50K

26th Mendon 50K Trail Run

Mendon, USA
Nov 7·In 9 days
44th Mountain Masochist 50km Trail Run
50K

44th Mountain Masochist 50km Trail Run

Montebello, USA
Nov 7·In 9 days
Willapa Trail Festival 100M/50M/50K/25K/5K

Willapa Trail Festival 100M/50M/50K/25K/5K

Chehalis, USA
Nov 7·In 9 days·Closes Nov 3·From €17
The Next Loop Endurance Series - Pinnacle Mountain, AR November - 50K

The Next Loop Endurance Series - Pinnacle Mountain, AR November

Roland, USA
Nov 7·In 9 days
14th tBunk Endurance Challenge 50 Mile - 50mi
80.5km

14th tBunk Endurance Challenge 50 Mile - 50mi

La Grange, USA
Nov 7·In 9 days·Closes Nov 1·From €83
Rio Del Lago 100 Mile + 50K Endurance Runs

Rio Del Lago 100 Mile + 50K Endurance Runs

Granite Bay, USA
Nov 7·In 9 days·Closes Nov 2
10th Natchez Trace Trail Run - 50mi
80.5km

10th Natchez Trace Trail Run - 50mi

Natchez Trace, USA
Nov 7·In 9 days
5th Willapa Trail Festival 100 Miles Race - 100M

5th Willapa Trail Festival 100 Miles Race

Chehalis, USA
Nov 7·In 9 days
Great Eastern Endurance Run 100 km - 40mi

Great Eastern Endurance Run 100 km

Lyndhurst, USA
Nov 7·In 9 days·From €48
View all 295 races

Your guide to trail ultramarathons in USA

There are 295 upcoming trail ultramarathons in USA, spread across 242 cities. Filter by distance or terrain to narrow things down, and save the races you like the look of.

Most take place in November, December and April. Next up is 4th Machete Trail Madness - 200mi in Perris on 30 October 2026.

Questions runners ask

How many trail ultramarathons in USA are there?

Finndu lists 295 upcoming trail ultramarathons in USA, across 242 towns and cities. The list is updated twice a day as organisers announce new races.

When is the next one?

4th Machete Trail Madness in Perris, on 30 October 2026.

Which month has the most trail ultramarathons in USA?

November, followed by December and April.

How much does it cost to enter?

Entry starts from US$15. Fees vary from race to race, so check each race page for its current price.

Explore more races

Other trail distances in USA

5K races·10K races·Half marathons·Marathons

Trail ultramarathons in nearby countries

Canada

All trail races in USA

Trail running races in USA

All running races

Running races worldwide