CloseSelect distance
CloseSelect date
CloseSelect location
Perks of booking with Let’s Do This
Tick
Best price guarantee
trustpilot
Running EventsUltramarathons

Ultra Marathons in the USA

Ultramarathons, or ultras, are any running races beyond the standard marathon distance of 26.2 miles (or 42.2k). The most common ultra distances are 50k, 100k, 50 miles, or 100 miles, but each event is unique in terms of distance and terrain. The International Association of Athletics Federation recognises world records at ultramarathon events that have a distance of 100km. There are even 24hr ultramarathons, where the distance is unlimited, or multiday ultras, where the distance can extend beyond 1000km. There are a couple of city-based ultramarathons, but most ultras make the most of the USA's stunning scenery and landscapes. A lot of these events go off-road and require trail-running over difficult terrain with steep climbs or along rugged coastlines. There are over 1,500 ultramarathon events in the USA. One of the most famous and most difficult events is the Badwater Ultramarathon, which is 135 miles long through the searing heat and arduous terrain of Death Valley.

54 events found
Redwood Trail Run (Summer)

Saturday, Aug 6, 2022

Redwood Trail Run (Summer)

LocationIndicator

Oakland, California

Participants

ultramarathon, marathon, half marathon

FilledTicket$45 – $90
Earlybird entry - ends soon
Booking perksHilly trail
HeartOutline
Marlette Lake Tahoe 50k & 10 Miles Trail Run

Saturday, Aug 13, 2022

Marlette Lake Tahoe 50k & 10 Miles Trail Run

LocationIndicator

Douglas County, Nevada

Participants

ultramarathon, 10 miles

Star5

(1 reviews)

FilledTicket$70 – $120
Booking perksGreat atmosphereGreat sceneryTrail
HeartOutline
Bizz Johnson Trail Races

Saturday, Sep 3, 2022

Bizz Johnson Trail Races

LocationIndicator

Susanville, California

Participants

half marathon, ultramarathon, marathon, 10k

FilledTicket$35 – $105
Earlybird entry - ends tomorrow
Booking perksHilly trail
HeartOutline
China Peak Running Festival

Saturday, Sep 17, 2022

China Peak Running Festival

LocationIndicator

Lakeshore, California

Participants

ultramarathon, 10k

FilledTicket$50 – $225
Earlybird entry - ends soon
Booking perksGreat sceneryHilly trail
HeartOutline
Diablo Trail Run

Sunday, Sep 18, 2022

Diablo Trail Run

LocationIndicator

Clayton, California

Participants

ultramarathon, 10 miles, half marathon, marathon

FilledTicket$35 – $90
Earlybird entry - ends soon
Booking perksHilly trail
HeartOutline
Back on the Ranch Trail Run and Campout

Sunday, Oct 2, 2022

Back on the Ranch Trail Run and Campout

LocationIndicator

Solvang, California

Participants

ultramarathon, 5k

FilledTicket$50 – $240
Earlybird entry - ends soon
Booking perksGreat sceneryTrail
HeartOutline
Lake Chabot Trail Runs

Saturday, Nov 5, 2022

Lake Chabot Trail Runs

LocationIndicator

Castro Valley, California

Participants

ultramarathon, half marathon, marathon

FilledTicket$45 – $85
Earlybird entry - ends soon
Booking perksFlat trail
HeartOutline
Ragnar Trail Tahoe

Friday, Jul 8, 2022

Ragnar Trail Tahoe

LocationIndicator

Norden, California

Participants

ultramarathon

FilledTicketPrice TBC
Hilly trail
HeartOutline
Last Call Fifties

Saturday, Jul 9, 2022

Last Call Fifties

LocationIndicator

Park County, Colorado

Participants

ultramarathon

FilledTicketPrice TBC
Great sceneryHilly trail
HeartOutline
Rancho Hills Trail Run

Saturday, Jul 9, 2022

Rancho Hills Trail Run

LocationIndicator

Morgan Hill, California

Participants

5k, 10k, half marathon, ultramarathon, marathon

FilledTicketPrice TBC
Trail
HeartOutline
Audi Power of Four Trail Run

Saturday, Jul 9, 2022

Audi Power of Four Trail Run

LocationIndicator

Aspen, Colorado

Participants

ultramarathon, 10k

FilledTicketPrice TBC
Flat trail
HeartOutline
Salt Point Trail Run & Camping

Saturday, Jul 9, 2022

Salt Point Trail Run & Camping

LocationIndicator

Jenner, California

Participants

ultramarathon

FilledTicketPrice TBC
Hilly trail
HeartOutline
The Peak 50k, Marathon & Half Marathon

Saturday, Jul 16, 2022

The Peak 50k, Marathon & Half Marathon

LocationIndicator

San Diego County, California

Participants

ultramarathon, marathon, half marathon

FilledTicketPrice TBC
Hilly trail
HeartOutline
Big Chief 50k

Sunday, Jul 17, 2022

Big Chief 50k

LocationIndicator

Truckee, California

Participants

ultramarathon

FilledTicket$100 – $120
Earlybird entry - ends soon
Great sceneryHilly trail
HeartOutline
San Francisco Marathon

Saturday, Jul 23, 2022

San Francisco Marathon

LocationIndicator

San Francisco, California

Participants

marathon, ultramarathon, 5k, half marathon

Star4.5

(5 reviews)

FilledTicketPrice TBC
Great atmosphereGreat sceneryRoad
HeartOutline
Kirkwood's Thunder Mountain Trail Challenge

Saturday, Jul 23, 2022

Kirkwood's Thunder Mountain Trail Challenge

LocationIndicator

Markleeville, California

Participants

half marathon, 10k, 5k, marathon, ultramarathon

FilledTicketPrice TBC
Great sceneryTrail
HeartOutline
Never Summer 100k & 60k

Friday, Jul 29, 2022

Never Summer 100k & 60k

LocationIndicator

Walden, Colorado

Participants

ultramarathon

FilledTicketPrice TBC
Flat trail
HeartOutline
Harding Hustle

Saturday, Jul 30, 2022

Harding Hustle

LocationIndicator

Silverado, California

Participants

ultramarathon

FilledTicketPrice TBC
Flat trail
HeartOutline
Angeles Crest 100

Saturday, Aug 6, 2022

Angeles Crest 100

LocationIndicator

Los Angeles County, California

Participants

ultramarathon

FilledTicketPrice TBC
Flat trail
HeartOutline
Rodeo Valley Trail Run

Saturday, Aug 6, 2022

Rodeo Valley Trail Run

LocationIndicator

Mill Valley, California

Participants

ultramarathon, 5k

FilledTicketPrice TBC
Hilly trail
HeartOutline
Kirkwood’s Ultras

Saturday, Aug 6, 2022

Kirkwood’s Ultras

LocationIndicator

Markleeville, California

Participants

ultramarathon, 5k, half marathon, 10k

FilledTicketPrice TBC
Hilly trail
HeartOutline
Skyline 50k

Sunday, Aug 7, 2022

Skyline 50k

LocationIndicator

Castro Valley, California

Participants

ultramarathon, half marathon

FilledTicketPrice TBC
Trail
HeartOutline
Extraterrestrial Full Moon Midnight

Saturday, Aug 13, 2022

Extraterrestrial Full Moon Midnight

LocationIndicator

Alamo, Nevada

Participants

ultramarathon, half marathon, 10k, 5k, marathon

FilledTicketPrice TBC
Flat road
HeartOutline
Kodiak Ultra Marathons

Friday, Aug 19, 2022

Kodiak Ultra Marathons

LocationIndicator

Big Bear Lake, California

Participants

ultramarathon, half marathon, 10k

FilledTicketPrice TBC
Hilly trail
HeartOutline
Showing 1 - 24 of 54 events

About ultramarathons in the USA

Ultramarathons, or ultra runs, are endurance running races or treks beyond the standard marathon distance of 26.2 miles (42.2k). The most common distances for ultra running are 50k, 100k, 50 miles, or 100 miles (aka centurion races). Ultras take place on roads or trails across the US, and some last for 24 hours or multiple days. Some multi-day stage races are even self-sufficient, where runners must carry all of there equipment and provisions with them for the duration of the race.

What are the best USA ultra marathons?

There are over 1,500 ultra marathon events in the USA. The best ultra marathons make the most of the USA's spectacular scenery, including coasts, deserts, mountains, and national parks. The Golden Gate Trail Run is one of the best rated ultra marathon events on our list. The Badwater 135 is seen as one of the world's toughest and hardest ultra marathons, going through Death Valley.

How long should I train for an ultramarathon?

It is important to devote a significant amount of time and effort to training if you are wanting to complete an ultramarathon. Everybody has different levels of fitness and the race distances vary, so it is difficult to be precise with training plans. Most first-time ultrarunners will already have lots of running experience, so 6-10 weeks of specific training should get you ready for a 50k ultra. During your training, it is also important to get used to in-race nutrition and running on trails.

© Let's Do This 2022
image
🇺🇸