JUNE 19th, 2021



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 Leadville Trail Marathon or Heavy Half Marathon. The views will leave you breathless, if you’re not already. 

Option 1: Defer your registration to 2021 Leadville Trail Marathon & Heavy Half (June 19th, 2021). Waived deferral fee.

Option 2: Refund entry fee (minus the platform /service fees)

Option 3: Donate my entry to the Lake County School District via the Life Time Foundation (100% of proceeds to impact the lunch program in Lake County, which is currently serving 720 kids per day, breakfast, lunch and dinner. That’s 3,600 bags of food each week!)

Option 4: Donate your entry to the Leadville Trail 100 Legacy Foundation, the foundation started by Ken Chlouber and Merilee Maupin and helps fund scholarships for all Lake County HS graduates. You will also receive early registration for the 2021 Leadman & Leadwoman Challenge.

*All decisions must be submitted before June 16,2020, through your Run Signup Registration.

Q: I have chosen to defer my registration to the 2021 Leadville Trail Marathon & Heavy Half (June 19th, 2021). What do I need to do now?

  • A: ACTION REQUIRED: You will receive an email from us with instructions and your complementary deferral link in November 2020. You will have a window opportunity to register with the deferral.

Q: I can’t or do not want to attend the 2021 MAR/ HH event. What are my options?

  •  You can choose to receive a refund of your registration fee. OR choose to donate your entry fee to either foundation, Option 3 or Option 4.

Q: I already chose to defer prior to the cancellation announcement. What does this mean for me?

  • We will work to refund the fee that you have paid to defer. Please send us an email, leadville@ltevents.zendesk.com. There may be a bit of delay in response. Thank you for your patience!

Q: Can I get a refund?

  •  You can choose the refund option, Option 2. You will be refunded the registration fee. The platform and service fee is not part of the refund. Please allow a couple weeks for this to credit back to your bank. If you have changed credit cards but still have the same bank, the refund should still credit to the account. If you are worried please reach out to Run Signup Support to confirm details.

Q: I already deferred my 2019 registration to the 2020 MAR/HH. Do the current options apply to me? Can I choose any option listed?

  •  YES! We understand the cancellation of the event is not your decision. You are able to defer to the 2021 event.

Q: Will you give coins/ slots into the 2020 Leadville Trail 100 RUN presented by La Sportiva to athletes that were registered for the 2020 event? Through social, a drawing or a contest? How can I get one?!

  • Hang on partner! Keep your eyes and hears on our social platforms. If we are able to, we will have information shortly!

2021 Marathon & Heavy Half Event Information Coming This Winter!

2020 information:

Each Leadville Qualifying Series race provides 25-100 qualifying slots to the Leadville Trail 100 Run presented by La Sportiva, 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 runners 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

2021 Marathon & Heavy Half Event Information Coming This Winter!

2020 information:

1/19-1/26 $115
1/26-5/31 $125
6/1-6/11 $135
On-site registration* $155

Pricing for 2020 Heavy Half: 

1/19-1/26 $95
1/26-5/31 $110
6/1-6/11 $120
On-site registration* $130

*On-site registration will only be available if events are not sold out.

Military and student discounts are offered for our Leadville qualifier events. Please email a photo of your current card to leadville@ltevents.zendesk.com while specifying which event you are inquiring about.

2021 Marathon & Heavy Half Event Information Coming This Winter!

General overview of the weekend:


4pm-8pm Packet Pickup


8:00am Race Start

4:30pm Race Finish


2021 Marathon & Heavy Half Event Information Coming This Winter!

2018 guide for reference:

View the 2018 Guide Here

2021 Marathon & Heavy Half Event Information Coming This Fall!

Although we look forward to seeing  you at our events, we understand certain things may come up that prevent you from attending. Please make note of our deferral and refund policies:

Athlete Deferral Policy


  • Up to 2 weeks prior: Flat deferral fee into following year
  •  Less than 2 weeks – increased flat deferral fee
  •  Do not repay following year
  • No refunds, no transfers, no exceptions.

If the event cancels:

due to a series of reasons, including pandemic, natural disaster, etc.

Athlete Option 1: Deferral 

  • Complimentary, guaranteed entry into the following year’s event

Athlete Option 2: Refund 

  • 90+ days out – 70% refund
  • 60-89 days out – 50% refund
  • 30-59 days out – 40% refund

 No refunds on service fees or donations

 Though the 2019 course was re-routed due to extreme snow conditions, the 2021 Marathon and Heavy Half will be back to the traditional courses.

Heavy Half Aid Locations

A 1/2 Lincoln Gulch 2.8 Miles

B  Resurection 4.5 Miles

C  Mosquito Pass 7.75 Miles

A 1/2 Lincoln Gulch 11.0 Miles

FINISH 15.5 Miles

Marathon Aid Locations

 H20 2.4 Miles

A Venir 6.1 Miles

A 1/2 Lincoln Gulch 8.7 Miles

B Resurection 10.3 Miles

C Mosquito Pass 13.7 Miles

B Resurection 17.1 Miles

A 1/2 Lincoln Gulch 18.7 Miles

A Venir 21.3 Miles

H20 23.8 Miles

FINISH 26.2 Miles

2021 Marathon & Heavy Half Event Information Coming This Winter!

Online award shipment will close on October 31st. If you would like your award after this date, please email Kelsey Conine (kconine@lt.life) to have your award shipped to you.

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

Our races are Zero Waste events. Look for recycle and compost bins at every aid station and start/finish. Please discard any waste 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.

2021 Marathon & Heavy Half Volunteer Information Coming This Winter!

From the very beginning, volunteers have made the 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 HERE to learn more!

Click here to view results from the 2019 Leadville Trail Marathon & Heavy Half

Visit the link below to view historical results from the Leadville Trail Marathon & Heavy Half Marathon.

Historical Results