Blueprint for Athletes Leadville Trail Marathon & Heavy Half Marathon 2017-04-21T13:48:53+00:00

Leadville Trail Marathon & Heavy Half Marathon Registration Is OPEN!

Register Here


June 17, 2017

Run through the historic mining district’s challenging old mining roads and trails, and hit a high of 13,185 feet at Mosquito Pass during the Blueprint for Athletes Leadville Trail Marathon or Heavy Half Marathon. The views will leave you breathless, if you’re not already. The marathon will mark its 18th year in 2017, while the Heavy Half will mark its 12th.

Each Leadville Qualifying Series race provides 25-100 qualifying slots to the Blueprint for Athletes Leadville Trail 100 Run presented by New Balance, based on the total number of registered racers at each qualifier event. Half of the qualifying spots will be allocated based on the top age-group performances and half will be drawn among riders who have finished the qualifier race within the allocated cut-off time.

Qualifying slots will be distributed at the Awards Ceremony. Qualifying slot winners MUST BE PRESENT, as the roll-down qualifiers rule will be in effect at each event. All qualifier slots will be awarded and redeemed on race day. You must pay your entry to the LT100 Run within the three days after the event. You will have the option to register for the current year or the following year’s LT100 Run and must decide when accepting your qualification slot. All entries into the LT100 Run are non-transferrable.

> Visit our LT100 Run Qualification System page for more information

Starting Time
8 a.m.

Starting Place
Sixth Street Gym, 124 E. Sixth Street, downtown Leadville

Course Cutoffs
There is an 8.5-hour total time limit for the marathon, and aid station cutoffs will occur at 1:45 p.m. at Aid Station B inbound (16 miles) and 2:45 p.m. at Aid Station A inbound (21.3 miles). There is also an 8.5-hour total time limit for the Heavy Half, and there will be a cutoff at 1:45 p.m. at Aid Station B outbound (11 miles).

Packet Pickup
Race number and packet pickup are on Friday at Race Headquarters, 316 Harrison Avenue, from 11 a.m. to 7 p.m., and on race day at Race Headquarters from 6 a.m. to 7:15 a.m.

Awards Ceremony
The Heavy Half Awards Ceremony will take place at 3 p.m. at the 6th Street Gym, while the full Marathon Awards Ceremony will take place at the 6th Street Gym at 5 p.m.

2017 Athlete Guide – Coming Soon!

Check out the 2016 Athlete Guide for detailed schedules, course information and more.
> View the Athlete Guide

The race course is out and back through the historic mining district on the east side of Leadville. Race start will be at 8 a.m. in front of the Sixth Street Gym. The course is primarily on old mining roads and trails, topping out at 13,185 ft. at Mosquito Pass. You may be crossing snow on the course. The course will be well marked with fluorescent pink-and-black-striped ribbon and chalk arrows.

Due to heavy snow in the Ball Mountain section of the course, full Marathoners will use the 2014/2015 route. Thanks to recent warm weather and some LRS snow removal teams, all participants will still climb the famed Mosquito Pass section to 13,185’.

> View the Marathon & Heavy Half Course Map
> View the Marathon Course Profile
> View the Heavy Half Course Profile

Aid Stations
There will be seven well-supplied aid stations for the marathon and five well-supplied aid stations for the Heavy Half.



150 - 500 - SOLD OUT







150 - 500 - CURRENT PRICE





All finishers receive a finishers medal. The Heavy Half Awards Ceremony will take place at 3 p.m. at the 6th Street Gym, while the full Marathon Awards Ceremony will take place at the 6th Street Gym at 5 p.m. Include staying for the awards in your race day plans. Age group awards are also awarded at this time.

If you do not attend the Awards Ceremony to receive your award you must send a check made out to the Leadville Race Series for $15 along with the Awards Form filled out fully to:
Leadville Race Series
Attn: Awards
316 Harrison Ave.
Leadville, CO 80461

*Please note that 2017 awards will not be shipped until the end of our race series season, September 2017.

Our races are 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.

From the very beginning, volunteers have made the Blueprint for Athletes Leadville Trail Marathon & Heavy Half 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 Trail Marathon & Heavy Half, 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!

Click the HERE to learn more!

If you have registered for the 2017 race but are unable to participate, you may defer your registration to next year’s event for a fee.

To sign up for a deferral, log into your Chronotrack account and follow the steps below:

  • Step 1: Once you are logged in, click on “Change Race” in the upper right corner.
  • Step 2: Click on “Defer my registration for another event.”
  • Step 3: Click “Continue”
  • Step 4: You will see the fee to change – click on “Proceed to Checkout”
  • Step 5: Enter in your payment information.

Please note: You will receive an email with your deferral code for the 2018 event. Please keep this in a safe place to register with when we open our 2018 event registration! If you have any questions about the deferral process, please contact Athlete Services.



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