This is it, the race of all races. One hundred miles across the high-altitude, extreme terrain of the Colorado Rockies, this event was created for only the most determined athletes. Starting at 10,152 feet and climbing to 12,424 feet, you’ll be challenged to catch your breath — while the views try to take it away.




Deferral/ Donated Entry fee- 2021 LT100 MTB deferral list:

*2021 Limited slots were available

For those athletes that were able to defer or donate their 2020 Stages Cycling Leadville Trail 100 MTB entry to be on the 2021 deferral list, we emailed through the registration platform (Run Signup) as well as through our Life Time mass communications email, information and deferral/ reserved entry links to re-register for the 2021 LT100 MTB. The window to use your deferral link (if you were on the 2021 deferral list) was October 19th-November 23rd, 2020.. Athletes that did not use their link (that were on the 2021 deferral list) have now been added to the 2022 deferral list and should expect an email from us, through Run Signup, next fall to re-register for the 2022 LT100 MTB prior to the 2022 LT100 MTB lottery. *Athletes that did not use their 2021 deferral/ reserved entry link are NOT on the 2021 LT100 MTB roster. At this time, you may choose to enter the 2021 LT100 MTB lottery opening February 1-15th, lottery winners will be notified February 23rd. If you are drawn in the lottery you will need to pay the 2021 LT100 MTB registration fee. You will still be on the 2022 LT100 MTB deferral list.

Deferral/ Donated Entry fee- 2022/23 LT100 MTB deferral list:

If you deferred your 2020 Stages Cycling Leadville Trail 100 MTB to the 2022/23 LT100 MTB, you will receive an email and deferral/ reserved entry link from us through the registration platform (Run Signup) next fall to re-register your deferred entry for the 2022 LT100 MTB. If, at that time, you would like to roll your deferral to the 2023 LT100 MTB you will use the deferral/ reserved entry link to indicate you’d like to roll your deferral to the following year (2023 LT100 MTB). 

*No refunds are available for any registration from the cancelled 2020 Leadville Race Series events as of June 18th, 2020.

*Athletes that did not login to make a cancelled event option selection were refunded and withdrawn without guaranteed entry through any lottery.

2021 LT100 MTB Lottery

Lottery registration opens February 1st through February 15th (closes, February 15th at 11:59pm, MST). Lottery winners will be notified February 23rd

If unsuccessful in the lottery process and you still wish to participate in the LT100 MTB, please check out some of the options below:

Leadville Trail 100 MTB Training Camp July 1st- July 4th, 2021

Led by the best of the best, the Leadville Trail 100 MTB Camp could be your entry into the LT100 MTB. Register for the camp packaged with a LT100 MTB entry and you have a guaranteed spot into the sold-out race. As a camp participant, you will ride every mile of the LT100 course while paying special attention to the most grueling sections to help get you ready for your August race.

LIMITED 2021 Camp + Entry! Registration includes BOTH Camp and an entry into the 2021 Stages Cycling Leadville Trail 100 MTB. *Once Camp + Entry registration is full a wait list will open.

LT100 MTB Qualifiers

Qualifiers serve as opportunities to advance your corral position at the LT100 MTB. Athletes do NOT need to race a qualifier to toe the LT100 MTB starting line.

Charity slots

2021 Charity Partner slots limited!

Skip the lottery and guarantee your entry by registering with a charity. Competing on behalf of one of our official charity partners not only guarantees you a spot in the  race, but also provides you the opportunity to make an impact in the community.

> View more info on the Leadville Race Series Charity Partner Program

Please note athletes must be 18 years or older on the day of the race to participate in the Leadville Trail 100 MTB. Age group awards will be based off of the age an athlete will be prior to December 31st of the race year.

Times subject to change. Full event schedule coming soon.

General overview of the weekend:


2pm-8pm Packet Pickup


11am-5pm Packet Pickup


5am-6:15am Corrals Open

6:30am Race Start


7:30am-10am Awards Ceremony

The 100-mile out-and-back course is in the midst of the Colorado Rockies. Low point, 9,200 feet; high point is Columbine Mine, 12,424 feet. Majority is on forest trails with some mountain roads.

> View the course map|only use on permitted event dates (do not use at all in 2020)
> View the course profile

Please note: Due to safety restrictions on the course wheelchair participation is not permitted.

Training on course
A section of the course is on private land (O’Neil Ranch), which is only open to ride on race day. We’ve created an alternate route for riders looking to train around this area prior to the event.
> View the training route – Re-Route Around Private Property!updated 8/13/20

Virtual course map
Check out our virtual course map — brought to you by Trail Genius — for a complete tour of the Leadville Trail 100 MTB course including video, GPS data, detailed terrain profiles and other key features to get you ready to rock the race.
> View the virtual course map

All or part of this operation is conducted on Public Lands under special permit from the U.S. Bureau of Land Management.

This event is held on the San Isabel National Forest under a special use permit.

Aid Stations
Full aid stations will be at these locations:

  • Pipeline (outbound at about 26 miles)
  • Twin Lakes Dam (outbound at about 40 miles)
  • Columbine Mine (at 50 miles)
  • Twin Lakes Dam (return at about 60 miles)
  • Pipeline (return at about 74 miles)

There will also be an express aid station located at Carter Summit on Turquoise Lake (at about mile 11 and mile 89). This location will not be a drop bag point. Aid station supplies include, but are not limited to: water, GU (including gels and Roctane), Coca-Cola products, fruit (such as banana and watermelon), cookies, potato chips, M&M’s, pretzels, crackers, and PB&J sandwiches.

Athlete Guides will be posted 4 weeks prior to Race Day

> View the 2019 Athlete Guide

Riders must line up in their pre-assigned corrals by 6:15 am. Check-in will be at the entry to your starting area. At the time of check-in, we require that all race numbers and timing chips have been affixed to the handlebars of your bike. Race numbers may not be altered. Unregistered bikes are not allowed in starting area.

Riders will be seeded in pre-assigned color-coded corrals. You will receive your corral color at packet pickup when you will receive a colored race number placard. Seeding will be based on your best finish time from either a  Leadville Trail 100 MTB finish, or a Leadville qualifier event finish. Please see corral chart for reference

You must start the race in your assigned corral and you will be disqualified if you start the race in a corral not assigned to you. This rule will be strictly enforced.

Corrals will be assigned as follows:

  • Gold
  • Silver
  • Red
  • Green
  • Purple
  • Orange
  • Blue
  • White

As one of the most well-known mountain bike races on earth, getting into the Leadville Trail 100 MTB has always been difficult. LT100 Qualifiers are long and tough, with lots of climbing. They are similar to the classic course at Leadville in that they consist mainly of rugged jeep roads of gravel and dirt. A qualifier event could not only gain you entry into the LT100 MTB, but it could also boost your corral starting position in the Race Across the Sky!

Rider starting positions will be organized in color-coded corrals. These positions will be based on a finish time from a previous (see corral chart) LT100 MTB finish/qualifier finish, or if you hold a current USAC or UCI Pro Cross Country Elite license. Please enter finish times or email a current photo of your USAC or UCI Pro Cross Country Elite license when prompted during the registration process. However, if you race a qualifier after previously gaining entry, you MUST email Athlete Services a direct link to your individual results so you will be placed accordingly. You will not be placed automatically. Corrals will be assigned as follows:


2021 Awards Ceremony Details May Change due to our COVID-19 Guidelines

1000 mile buckles, 11 year jackets, and 2000 mile buckles will be presented at the awards ceremony on Sunday.

All age group awards will be presented at the awards ceremony on Sunday at 7:30 am. There will be male/female 1st, 2nd and
3rd place awards in each age category: 18 & 19, 20-29, 30-39, 40-49, 50-59, 60-69 and 70 & over. Handmade trophies will be
given to the male and female overall champions. Finishers under 9 hours will receive a large gold-and-silver trophy belt
buckle. Finishers under 12 hours will receive a silver belt buckle. All finishers under 12 hours will receive a finisher’s medal and
a custom finisher’s sweatshirt. There will also be awards for 1st, 2nd and 3rd tandems and 1st, 2nd and 3rd male and female
single-speed. You must be present to receive your award. Others cannot pick it up for you. After October 31st,  buckles and jackets will no longer be able to be shipped.

Crew/Spectator Guides will be published no later than 4 weeks prior to race day. Information & Details may change due to our COVID-19 Guidelines

crew, we love you! However, you must abide by Lake Country & Chaffee County laws, race rules, listen and respect ALL Leadville Race Series Staff, Volunteers, and personnel in enforcement uniform or vests. If you fail to abide and respect our community you will be asked to leave and your athlete may be disqualified!

Your race checklist isn’t complete without your crew! Give them a way to commemorate this special experience with their own Leadville Race Series memorabilia. Visit our online store to check out our exclusive LRS crew shirts (pictured on right) to get your team prepared for race day!

At all the Leadville events crews are treated and appreciated equally with the entrant and are included in the Leadville Race Series family. Crew pets must be leashed and under control at all times. Crews are welcome at all aid stations except the turnaround. No crew bikes, please. Crews should allow adequate time to park and walk to aid stations. Crew vehicles are not allowed on any dirt road sections of the course. Riders are responsible for the actions of their crews. Crews and spectators will not be allowed vehicle access at the foot of Powerline or obstruct the junction of the paved road and jeep road where riders leave Powerline to head for Pipeline.

 Remove the stress of driving and parking throughout the day and let the shuttles do the work for you! Shuttle busses will run continuously from Lake County High School parking lot to Twin Lakes Dam. Shuttle Service begins at 7am and will run until 3pm. All-Access Pass Crews will receive complementary shuttle services and spectators/crews can purchase a $5 ticket at packet pickup. Proceeds from the shuttle service to be donated to the Leadville Trail 100 Legacy Foundation!

Crews will certainly want to be at the 6:30 a.m. start to assist their riders with any last-second needs cheer them on at the sound of the starting gun. Crews should proceed south on Hwy 24 approximately 3 miles, then west on Hwy 300 for a little less than a mile to CR 11/CR 11A “Y” intersection. Follow the slow sweeping right turn on the pavement, uphill and west, onto the gravel road that goes through the gravel pit area. Riders will be on paved CR11, the same road as crews for about a mile, so please drive slowly and use every caution on this stretch of road. Please allow your rider to clear this checkpoint before crewing. There may be some riders without a crew who would appreciate your help. Crews may furnish the replacement parts. Remember, you may help a rider with any need, except that the riders must complete the entire course using the original bike frame.

Crews should then proceed back to Hwy. 24, then south 11 miles. Turn west on Hwy. 82 for approximately 1 mile then left toward the Twin Lakes Dam. Volunteers will direct the parking. This area gets very congested, so we ask your help and patience, and that you follow the instructions of the traffic control volunteers without question.

A second crew access and parking area is the Mountain View Overlook parking area. Take the first left turn past the road up to the dam. There is a parking area at the end of this road.

We have another crew access point that may prove even better for some riders and crews. This crew area is located on Chaffee County Road 398A at the start of the climb to Columbine Mine Aid Station. Crews drive South on Hwy 24 to Granite. Turn right (West) just past the Granite store. Follow this dirt road to the marked crew area. This will give riders last second help before their big climb and again at the end of their descent. Using this crew point, you will avoid the huge crowds at the Twin Lakes Dam.

Riders will be crossing the dam as they make their way to the Twin Lakes Aid Station. You will have to carry anything needed for your rider to the crewing area. This same area will also be the next crew stop as riders will return to this aid station after an incredible climb to and descent from the 12,600′ Columbine Mine Aid Station. No crewing is allowed on that section of the course. Volunteers will attempt to meet their every need at this top of the world turnaround checkpoint. Once your rider has returned, reverse these directions.

Bike Flights
If you will be handling your own bike assembly and packing and box or case storage, ship your bike with our official bike shipping partner, Bike Flights.

Click here for more information.

Cycles of Life

Cycles of Life is a full service bike shop right in the town of Leadville, providing shipping services, all types of minor and major repair, tune-ups, custom wheel building, suspension and fork overhauls, bike fitting and more. To make things easy for you, have your bike shipped directly to the shop where Cycles of Life will unpack, assemble, inspect, fully tune and prepare your bike for race day. Post-race, simply drop off your ride and Cycles of Life will repack and ship to your destination.

Click here for Cycles of Life shipping package options and details.

2021 ALL-ACCESS PASS Information coming soon.

The brand new Leadville Trail 100 MTB All-Access Pass provides a premium package to athletes racing the Leadville Trail 100 MTB and will enhance the overall experience of the LT100 MTB weekend. Pass members will receive a plethora of benefits that will not only benefit them, but their supporters as well.

Learn more HERE.

Our races aim to be Zero Waste events. Look for recycle and compost bins at every aid station and start/finish. Please discard any trash in an appropriate container. Intentional littering on the course will be grounds for disqualification. The course—on trails both public and private—travels past many historic sites and through areas of exceptional beauty. Help us keep them pristine.

We will be recycling all plastic, aluminum and cardboard during these races, and all our events. We’ll take care of this at the aid stations. At the start/finish, please ensure you place trash or recyclable materials in the appropriate containers, which will be well marked.

If you are interested in receiveing a media credential for the LT100 MTB, please fill out this form here.

If you plan on flying a drone, the deadline to submit pilot license and flight plan is July 25th.

Additional media inquiries can be directed to Michelle Duffy.

From the very beginning, volunteers have made the Leadville 100 MTB possible. We truly appreciate all that our great volunteers do to make our races run smoothly and to make the racers’ experience unforgettable. If you are going to be in town for the 100MTB, we would love for you to join the family and pitch in. Thanks in advance for your help — we couldn’t do it without you!

With further questions, contact our Volunteer Coordinator: Richard Naprstek

Although we look forward to seeing  you at our events, we understand certain things may come up that prevent you from attending. Check out our deferral tiers for each event and please let us know if you have any questions!

Complete Leadville Events Deferral Policies Here

Visit the link below to view results and photos from the Leadville Trail 100 MTB


SMS Updates – In order to get SMS updates when an athlete crossing a timing split, please visit Athlinks to sign up for alerts.
Note – due to back country terrain, there may be lag time on SMS alerts based on cell signal availability.



Stages Logo