<a href="kavval://cities/214c8b82-771d-4392-b7fd-50d00219d072" rel="noopener noreferrer" target="_blank">New York</a>, <a href="kavval://cities/8130bfa9-043f-4407-9f40-c61a6693d8d7" rel="noopener noreferrer" target="_blank">Miami</a>, <a href="kavval://cities/1fc63874-64a8-48e8-be21-f11ae39bc6e6" rel="noopener noreferrer" target="_blank">San Francisco</a>, <a href="https://en.wikipedia.org/wiki/Detroit" rel="noopener noreferrer" target="_blank">Detroit</a>, <a href="https://en.wikipedia.org/wiki/New_Orleans" rel="noopener noreferrer" target="_blank">New Orleans</a>... How many of these cities do you know not from visiting, but from growing up with them in your favorite movies and TV shows? America lives in our imagination. But what if you made your own memories, one trip or one run at a time? Let’s start with a true icon: <a href="kavval://cities/214c8b82-771d-4392-b7fd-50d00219d072" rel="noopener noreferrer" target="_blank">New York City</a>. A cultural giant, the hometown of legends like <a href="https://en.wikipedia.org/wiki/Woody_Allen" rel="noopener noreferrer" target="_blank">Woody Allen</a> and <a href="https://en.wikipedia.org/wiki/Martin_Scorsese" rel="noopener noreferrer" target="_blank">Martin Scorsese</a>, and a marathoner’s dream. From Manhattan to the Bronx, Brooklyn to Queens and Staten Island, every neighborhood tells a different story and they’re best discovered on foot. Head down the East Coast to New Orleans, where music pours into the streets and jazz is still the city’s heartbeat 🎷. This <a href="kavval://level1AdminAreas/ccdd5f51-7dc3-44e3-a52d-717c29ebbb13" rel="noopener noreferrer" target="_blank">Louisiana</a> gem, home to legends like <a href="https://www.youtube.com/watch?v=Tf40GPnVz-A" rel="noopener noreferrer" target="_blank">Louis Armstrong</a>, is steeped in culture, flavor, and soul. In <a href="kavval://cities/8130bfa9-043f-4407-9f40-c61a6693d8d7" rel="noopener noreferrer" target="_blank">Miami</a>, the sun-soaked streets are calling. And if you're looking for a unique running story, join local legend Robert “Raven” Kraft he's been running the <a href="kavval://tags/seaside" rel="noopener noreferrer" target="_blank">sand</a> of South Beach every day since 1975. Yes, every. single. day.But America’s magic doesn’t stop in the cities. Let’s talk landscapes: the <a href="kavval://tags/mountain" rel="noopener noreferrer" target="_blank">Rocky Mountains</a>, stretching across six states and into Canada, are a wonderland for trail runners and nature lovers. From <a href="https://en.wikipedia.org/wiki/Yellowstone_National_Park" rel="noopener noreferrer" target="_blank">Yellowstone</a>, to <a href="https://en.wikipedia.org/wiki/Grand_Teton_National_Park" rel="noopener noreferrer" target="_blank">Grand Teton</a>, <a href="https://en.wikipedia.org/wiki/Rocky_Mountain_National_Park" rel="noopener noreferrer" target="_blank">Rocky Mountain</a> to <a href="https://en.wikipedia.org/wiki/Glacier_National_Park_(U.S.)" rel="noopener noreferrer" target="_blank">Glacier</a>, you’ll find yourself surrounded by stunning peaks, alpine lakes, and maybe even a bear 🐻 from a safe distance, of course. Climbing westward, we land in <a href="kavval://level1AdminAreas/1f37fea1-d6e4-4d28-82ee-e410411dbafd" rel="noopener noreferrer" target="_blank">California</a>, where cultures blend and the pace picks up. <a href="kavval://cities/ba734ba8-e6cc-4ae9-8bfc-187b47f95adb" rel="noopener noreferrer" target="_blank">Los Angeles</a> and Hollywood dazzle with energy, while <a href="kavval://cities/5735d465-5f91-4716-8794-a21b55ff4093" rel="noopener noreferrer" target="_blank">San Diego</a> offers chill coastal vibes near the <a href="kavval://countries/e383d9c8-efe3-4aeb-9048-98b004f4b519" rel="noopener noreferrer" target="_blank">Mexican</a> border. And then there’s <a href="kavval://cities/deef1764-1c8f-4913-9995-31467a099f3e" rel="noopener noreferrer" target="_blank">San Francisco</a> steep hills, sea breezes, and a spirit of freedom. It’s a place built for running, climbing, wandering, and discovering. Not far away? The glitz and neon glow of <a href="kavval://cities/58e8b6b5-76d0-4f15-96c4-2435abe401ee" rel="noopener noreferrer" target="_blank">Las Vegas</a>, rising out of the desert. It’s a surreal mix of casino lights and high-stakes dreams love it or hate it, there’s nowhere like it. And we can’t forget the great American frontier. <a href="kavval://level1AdminAreas/8be07a00-a925-4d88-9bb7-d4e608b7f742" rel="noopener noreferrer" target="_blank">Texas</a>, <a href="kavval://level1AdminAreas/037d8775-aa1b-4ccd-8e2d-9e48cc9509af" rel="noopener noreferrer" target="_blank">Montana</a>, <a href="kavval://level1AdminAreas/6834ce1b-a39c-4138-a4f8-7c3e2b17e312" rel="noopener noreferrer" target="_blank">Oregon</a> where the cowboy spirit still rides on open plains. Not the Hollywood kind, but the ones herding cattle and living close to the land 🐄. So… ready to run?Check out the race calendar across the country. Whether it’s <a href="kavval://cities/214c8b82-771d-4392-b7fd-50d00219d072" rel="noopener noreferrer" target="_blank">New York</a>, <a href="kavval://cities/912bb0e3-4f23-48a4-9530-0d7703eabbe9" rel="noopener noreferrer" target="_blank">Chicago</a>, <a href="kavval://cities/ba734ba8-e6cc-4ae9-8bfc-187b47f95adb" rel="noopener noreferrer" target="_blank">Los Angeles</a>, there’s a distance and a story for everyone. <a href="kavval://pages/19c6236d-b5b7-431a-87ba-e50b74dcd383" rel="noopener noreferrer" target="_blank">Trail</a>, <a href="kavval://pages/5b49242e-6288-4e30-8649-74eb1ab8563f" rel="noopener noreferrer" target="_blank">walking</a>, <a href="kavval://pages/baaef010-e9a4-4bab-9564-803d2d9d4f29" rel="noopener noreferrer" target="_blank">half-marathon</a> or <a href="kavval://pages/390ac20f-6103-4b2e-930e-b570ed852fb1" rel="noopener noreferrer" target="_blank">marathon</a>… time to hit the ground running. Let’s start with the <a href="kavval://events/2d9a1e24-e31b-48c7-8a17-e632ea261579" rel="noopener noreferrer" target="_blank">New York Marathon</a> the crown jewel of American road racing. Every year, thousands of participants cross the <a href="https://fr.wikipedia.org/wiki/Big_Apple" rel="noopener noreferrer" target="_blank">Big Apple</a> and its most famous neighborhoods. A true holy grail for the <a href="kavval://pages/30300aa8-919d-44ac-8ca6-015258ce663e" rel="noopener noreferrer" target="_blank">road runner</a>. Stay in the American dream with a little detour to <a href="kavval://level1AdminAreas/73bfa5da-ebf4-4695-8bcd-a75b6bd5bf2a" rel="noopener noreferrer" target="_blank">Florida</a>, in the <a href="kavval://tags/theme-parc" rel="noopener noreferrer" target="_blank">theme park</a> <a href="https://www.disneyworld.eu/" rel="noopener noreferrer" target="_blank">Disney World</a> located near <a href="kavval://cities/4bbe3779-1a54-4e31-abe7-d5e72601a22d" rel="noopener noreferrer" target="_blank">Orlando</a>. The kids are going to love the<a href="kavval://events/de3ee0c8-5cf7-4f14-8462-07910a29cf81" rel="noopener noreferrer" target="_blank"> Walt Disney World Marathon Weekend</a>! Also nice, the <a href="kavval://events/b81370a4-baa8-4d72-b682-3bfaee05d6de" rel="noopener noreferrer" target="_blank">Women Run the Cities</a> is a <a href="kavval://tags/cause" rel="noopener noreferrer" target="_blank">charity race</a> for women only, benefitting the <a href="https://www.gotrmn.org/" rel="noopener noreferrer" target="_blank">Girls on the Run</a> organization! The event is held in the city of <a href="kavval://cities/3f503734-2ed7-4b77-af73-48b17b3febca" rel="noopener noreferrer" target="_blank">Minneapolis</a> in <a href="kavval://level1AdminAreas/ef298893-6728-46dc-abeb-2ca431351d56" rel="noopener noreferrer" target="_blank">Minnesota</a>. For ultra fans, the appointment is set in <a href="kavval://level1AdminAreas/1f37fea1-d6e4-4d28-82ee-e410411dbafd" rel="noopener noreferrer" target="_blank">California</a> for the <a href="kavval://events/5ca60722-957d-4437-b67e-267b0951a548" rel="noopener noreferrer" target="_blank">Badwater Ultra-Marathon</a>. 135 kilometers through the infamous <a href="https://fr.wikipedia.org/wiki/Vall%C3%A9e_de_la_Mort" rel="noopener noreferrer" target="_blank">Death Valley</a> ☠️... Not exactly known for its coolness! The event features a road race across deserts, dunes, and mountains in the area... Beware of hallucinations. Let's stay in the ultra domain but return to <a href="kavval://tags/off-road" rel="noopener noreferrer" target="_blank">nature</a> and <a href="kavval://pages/19c6236d-b5b7-431a-87ba-e50b74dcd383" rel="noopener noreferrer" target="_blank">trail</a> with the <a href="kavval://events/121204ab-0951-4caf-9beb-d54939dfe326" rel="noopener noreferrer" target="_blank">Hardrock 100</a>. This highly regarded event for its difficulty takes you right into Colorado, exploring the landscapes around the town of <a href="kavval://cities/df7365d4-c4ee-4992-9414-e9ba96e97c06" rel="noopener noreferrer" target="_blank">Silverton</a>. A no-compromise <a href="kavval://pages/fe61e247-8c8f-4a66-b688-98099f2e8d75" rel="noopener noreferrer" target="_blank">ultra trail</a>.🇺🇸 Across this country, every mile means something. Whether you're pounding pavement in a big city or chasing trails in the wilderness, you're writing your own chapter in the American running story.Let’s go !

United States

America was made to be explored one stride at a time. From coast to coast, the run is part of who we are !

Running Events Calendar in the US

Running in the United States

Upcoming Races in the US

If you can't find what you're looking for in the US, you might want to check out other locations 🤷‍♀️

Where to Run in the United States

Practical info and race schedule (walks, road races, trails) in the US

God bless America 🇺🇸

Colorado

Calendar of Running Races in Colorado

Running events in Colorado

Upcoming races in Colorado

Other states are waiting for you

Looking for a race in Colorado? Road, triathlon, or trail — find the complete running events calendar here.

Information and schedules of running events in Colorado

🗺 Silverton Ultra Dirty is the sporting event you need to mark on your race calendar in the <a href="/en/destinations/north-america/united-states" data-next-link="1">United States</a> 🇺🇸, taking place in <a href="/en/events?location_t=city&location_l=Silverton&location_v=37.811941%2C-107.6645057" data-next-link="1">Silverton</a>.🖼 Challenge yourself against nature and scale the peaks in this 100% authentic <a href="/en/activities/trail" data-next-link="1">trail</a> race.👟 Choose from 3 distances: 60 km, 100 km, and 100 Miles.

Silverton Ultra Dirty

Find the shoe that fits you

Add to your favourites to be informed of new dates, of the opening of bib sales, etc:

Give us your email address to receive information about new dates, openings of bib sales, etc:

Interested in this race?

Already have an account?

Don't yet have an account?

We have just sent you an email with the information to re-set your password.

Check your inbox

Don't worry, it even happens to the best. Type in your email address and you'll receive the process to set a new password in no time.

Forgotten your password?

Log in

Create an account

Or take a shortcut and log in via

A next-gen platform helping sports enthusiasts of all levels discover territories and heritage through races tailored to them.

This could also be of interest to you

Per type of race

The most sought after races

Places

Find your race with its name, place, theme...

Most popular

Races

Per theme

Hi there! We would like to use cookies to understand where our Finishers come from and how they use the website. Do you agree? <a>Click here to find out more</a>

2 or 3 cookies to refuel?

By ticking this box, you increase the odds of seeing a Finishers ad on the Internet... rather than an ad on the next international competition of Aquaponey. Which do you prefer?

They enable us to understand how our Finishers made it to our website and to analyze usage numbers. Very convenient to find out what we need to work on!

Analytics cookies

They mostly aim at improving your browsing experience and our website's security.

Basic cookies

We use cookies to mesure the audience, nurture our relationship with you and send you both quality content and ads, once in a while. You can tick the ones you agree to keep.

Usage of cookies

You can read our <a>confidentiality policy</a> to find out more.

More information

Cookies preferences

Haven't you subscribed to the Finishers newsletter yet? 🙀

Let's make sure you no longer miss out on the latest news.

Want to get more Finishers news?

If you confirm, your list will be permanently deleted.

Create a list

Update the list

Add a list

Page not found

Add the races you like to your favourites and create your race calendar

<0>Ouch,</0> you don't have any favourites yet!

Find your next challenge in our <0>search engine</0>

Have you never booked a bib with Finishers?

Beware, this will only change your contact email, not the email address you use to login.

If you haven't done so already, don't forget to update your profile so we can make sure we give you the best experience 🎨

It seems that what brought you here no longer exists (expired link). Try again if need be.

Oops

We couldn't change your password, could you try again?

The link that brought you here has expired. Try again if need be.

The link that brought you here is incorrect or has already been used. Try again if need be.

You can now login with your new password.

Done!

Reset my password

Blog

Anonymous runners, athletes or celebrities, from around the corner or from the other end of the earth: discover the stories that make running a fascinating sport...

Finishers' news

If you haven't found what you're looking for in the FAQ section of an event or have any other questions, feel free to send us your request, and we will get back to you as soon as possible:

Contact Form

An email is missing on your Finishers account <0>Add a new address</0>

Your contact email associated with your Finishers account <0>Add a new address</0>

Organizer links:

Organizer social networks

Don't hesitate to give us a call and ask us your question! We're here to help.

Call us at

Contact

Destinations

All destinations

Types of races

All types of races

Wanna join?

The event in a few words

Frequently asked questions (FAQ)

The devil's in the detail

A distance for every taste

Focus

The distance you'll all agree on

A few more words

Kids

Races for children / juniors 👶

More info on this race

Hotels near the race

All the information about the race and registration process

More races await you

Where can I find the race rules?

Here is the calendar of all races, trails and walks!

Calendar of races

Will you pick short or long distance?

Upcoming races

Coming soon

More cities are waiting for you

More countries are waiting for you

More counties are waiting for you

Other disciplines are waiting for you

Other distances are waiting for you

Other dates are waiting for you

Territories and Natural Areas

Other regions are waiting for you

More series await you

More themes are waiting for you

Logistics and calendar of the races

These nice race spots should get your attention

Near your place

Our favourites

The races you cannot afford to miss in France and abroad

Races abroad

Book your bib right now

Breaking news

Finishers Blog

With Finishers, travel, explore new areas and run through your passions!

Finishers is everywhere!

Finishers enables you to travel and run in the regions, counties and cities that are the beauty of our country. Explore the best places to run!

Destination highlights

Finishers off-road

No matter the sport, you'll find something to please you!

Identify the races corresponding to your desires thanks to more than 50 filters and search themes and let yourself be seduced by their story!

Put your races forth and increase your visibility amongst our community of runners!

Do you organize races?

Finishers is the most exhaustive and updated race calendar. Find your next race and book your bib in a couple of seconds! 10k, half-marathon, marathon, trails, ultra trails, urban trails... You're on!

Calendar of races: trails, half marathons, marathons, walks...

Trending now

Find the shoe to fit your foot!

Let us inspire you with our race themes to find the one that will match your cravings.

Silverton Ultra Dirty 2026

The event in a few words

A distance for every taste

163.7 kmTOP

95.8 km

58.9 km

163.7 km : 100-Mile

95.8 km : 100K

58.9 km : 60K

Hotels near the race