June 28, 2025
Simply put, the nation’s toughest marathon. The Life Time Leadville Trail Marathon and Heavy Half presented by La Sportiva takes trail runners through the historic mining district’s challenging trails to the highest point of any Leadville Race Series event: Mosquito Pass (13,185 feet). As you take on the baddest trails and thinnest air in all of endurance racing, you’ll need all the Grit, Guts and Determination you can muster.
*2025 Event Schedule coming soon*
2024 schedule for reference:
FRIDAY
1:00 PM – 7:00 PM: Expo & Packet Pickup Hours
2:30 PM: Shake Out Run hosted by Trail Sisters and Boundless
- Start and Finish at the stage in the Expo
3:00 PM: Live music on the stage
Packet Pickup located within the Expo
- Location: E. 6th and Poplar – 135 E. 6th Street, Leadville, CO 80461
- We STRONGLY recommend and encourage athletes to pick up their packet on Friday, June 28th.
- Photo ID is required. Packets must be picked up in person. They will not be mailed or given to others.
SATURDAY
Race Morning Packet Pick Up
Marathon ONLY 5:45am-6:30am
Heavy Half ONLY 7:45am-8:30am
Race Start!
Below are some quick updates and reminders for all 2024 Leadville Trail Marathon & Heavy Half athletes.
1.) This race typically fills up and there is no on-site registration. There will be no changes permitted to your original race distance registration.
2.) We will be in alignment with CDC guidelines and the Lake County Health Department with regard to COVID-19. Check back for updates.
3.) Weather – remember that you will be racing in a high-alpine environment with the possibility of extreme weather. If there is thunder or lightning, seek lower elevation quickly.
4.) This is a rolling start instead of assigned waves/corrals for both distances. There will be signs at the start with each pace & projected finish time. You will seed yourself. See below for a list of suggested seed times.
5.) The race is chip timed, meaning your overall time will be based on when your race bib crosses the start and finish line.
Marathon Race Start 6:30am – New this year! To increase athlete experience and safety on Mosquito Pass!
Gold Pace 8:00min- 11:30min | SUB 5-hour finish
Silver Pace 11:31min-14:00min | SUB 6-hour finish
Red Pace Lead Challenge
Green Pace 14:01min- 16:00min | SUB 7-hour finish
Purple Pace Friends & Family | SUB 9:00-hour finish
Rolling Start Pace- Athletes will self seed.
Heavy Half Race Start 9:30am – New this year! To increase athlete experience and safety on Mosquito Pass!
Gold Pace 7:30min- 9:45min | SUB 2:30-hour finish
Silver Pace 9:46min- 13:30min | SUB 3:30-hour finish
Red Pace 13:31min- 17:30min | SUB 4:30-hour finish
Green Pace 17:31min- 21:30min | SUB 5-hour finish
Purple Pace Friends & Family | SUB 6:00-hour finish
Rolling Start Pace- Athletes will self seed.
Awards & LT100 Coin Lottery – 4:30 PM
Registration opens January 8th, 2025
2025 event pricing coming soon.
- Charity entries are available through the Life Time Foundation and the Leadville Trail 100 Legacy Foundation.
- First come-first served until the event is sold out.
Minimum Age:
- Marathon: 16+ on race day
- Heavy Half: 14+ on race day
The Leadville Trail Marathon is 26.4 miles of out-and-back dirt roads and single track that takes you through the historic mining district on the east side of Leadville. The Heavy Half consists of 15.46 miles along the same path as the marathon minus the Ball Mountain section. The course is primarily on old mining roads and trails, topping out at 13,185 feet at Mosquito Pass. This is the HIGHEST continuous pass in the country and the highest trail Marathon in the USA! There is a chance you’ll see snow on the course. The courses will be well marked with fluorescent pink-and-black striped ribbon and flour arrows on the ground.
Weather – remember that you will be racing in a high-alpine environment with the possibility of extreme weather. If there is thunder or lightning, seek lower elevation quickly.
2024 Trail Marathon Course Info –
- Distance: 26.4 Miles
- Elevation Gain: 6,167′
- High Point: 13,179′
2024 Heavy Half Course Info –
- Distance: 15.4 Miles
- Elevation Gain: 3,421
- High Point: 13,169′
There will be three well-supplied aid stations for the Heavy Half and seven aid stations for the Trail Marathon.
- Aid stations will offer: Water, Skratch Labs hydration, bars and chews, Precision Fuel & Hydration Gels, Assorted foods including bananas, figs, pretzels, chips, etc.
Heavy Half Aid Locations
- Resurrection 4.5 Miles
- Mosquito Pass 7.75 Miles
- Resurrection 11 Miles
- FINISH 15.5 Miles
- Adelaide 2.6 Miles
- Adelaide 7.7 Miles
- Resurrection 10.7 Miles
- Mosquito Pass 13.7 Miles
- Resurrection 17.2 Miles
- Adelaide 20.1 Miles
- Adelaide 23.9 Miles
- FINISH 26.2 Miles
Cut-Offs
- Outbound – Marathon Only
- Adelaide Aid Station: 9:15am
- Inbound – Marathon & Heavy Half
- Resurrection Aid Station: 1:15pm
- Total Course Cutoff for both events – 3:30pm
We recognize crews as a critical component to all of our events. Our courses cover open roads and trails and careful consideration must go into how and where crews and spectators can access their athletes. A conscious plan around this is a foundation of our partnership with the community, USFS, BLM, City of Leadville and Lake County officials to ensure we are providing a safe event experience to everyone involved.
To support local community impacts and maintain safety on public roads, the only areas where crew and and spectators are allowed on course are:
- Start/Finish Area
- Resurrection Aid Station
Resurrection Aid Station can be accessed in TWO ways:
- Driving from the community lots to Resurrection Aid via 7th St. Please use the map linked below and DO NOT drive on the course.
- Crew shuttles will be available from the startline to/from Resurrection Aid Station. Please help us reduce course congestion and plan to use the crew shuttle.
Parking and overall congestion in Leadville will be a crucial topic for everyone this season and for our presence in Leadville moving forward. We know that with your help we can be great stewards of this community for years to come!
All athletes and spectators will be required to park at the Community Fields and High School Parking lot and take a shuttle (or run, walk, bike) to the start line. There will be NO athlete or spectator parking at the startline. The map below outlines parking locations and shuttle pickup spots. The shuttle locations are under 1 mile from the race start and will run efficiently and quickly to get you to where you need to be!
SHUTTLES WILL BEGIN AT 5:00 AM AND RUN ALL DAY.
2024
Timing Split SMS Updates – LIVE SMS Tracking available here.
Note – due to back country terrain, there may be lag time on SMS alerts based on cell signal availability.
Past results are available HERE
Didn’t pick up your award in Leadville? Not to worry. You can order your award(s) to be shipped: Ship My Award
Awards Age group and overall awards will be distributed to the top competitors at the awards ceremony at 4:30 PM at the Expo.
Awards will be distributed in the following categories for both the Leadville Trail Marathon as well as the Heavy Half:
- Top 3 Overall Male
- Top 3 Overall Female
- Top 3 Para Male
- Top 3 Para Female
- Top 3 Non-Binary
- Top 3 age group male/female
- 19-under
- 20-29
- 30-39
- 40-49
- 50-59
- 60-69
- 70+
Age group awards will be based on the age an athlete will be on RACE DAY.
The Leadville Trail Marathon is a qualifier for the Life Time Leadville Trail 100 Run presented by La Sportiva. There are a minimum of 50 LT100 qualifier coins up for grabs at this year’s race. Half of the total LT100 coins will be distributed based on performance and half of the coins will be given away in the Event Lottery at the conclusion of the awards ceremony. Only the Marathon distance serves as a qualifier for the LT100 RUN.
25 slots will be distributed based on performance:
- Slots will be distributed to each gender and age group (20-29, 30-39, etc.) based on the percentage of total athletes in those age groups, with a minimum of one slot for every age group.
- The top athletes in each age group will receive the allocated slots.
- In the event a top athlete elects not to accept a slot, the slot will roll down to the next athlete in the results within the age group.
- In the event slots are not claimed after the roll down in each age group, those slots will be allocated to the Event Lottery, as described below.
25 slots will be distributed through the Event Lottery:
- Finishers of the Marathon distance will be eligible to win an LT100 RUN coin in the Event Lottery.
- All finishers under the predetermined maximum finish time who have indicated their desire to participate in the lottery will be entered in the lottery.
- Names will be drawn from the eligible lottery athletes and slots will be given out.
- In the event an athlete opts not to accept a slot, the slots will roll down to the next athlete that is drawn until ALL slots have been distributed.
- Qualification slots must be claimed in person immediately.
- Registration for the Leadville Trail 100 Run must be completed and paid for during the designated time offered.
- Only solo runners competing the required distance under the allotted cutoff time will be considered as potential qualifiers.
- All registration fees for the LT100 Run are nontransferable and non-refundable
> Visit our LT100 Run Qualification System page for more information
TRASH AND RECYCLING
Our races aim to be Zero Waste. Look for recycling 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.
- This is a zero waste event.
- Our local zero waste non-profit, Cloud City Conservation Center, is hosting our recycling program.
- There will be recycling/compost containers at all full aid stations and at the start/finish line.
- Please place any waste in the proper bin.
Reminder – Intentional littering on the course will be grounds for disqualification.
*2025 Volunteer info coming soon*
From the very beginning, volunteers have made the Leadville Race Series 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 LT100 MTB, 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!
Head on over to our Volunteer information page for more info on how to sign up!
Medical Volunteers:
We are looking forward to having safe events and we’re excited to welcome our new medical volunteers. If you are a doctor, nurse, or EMT and would like to help in this capacity, please email Chris Yeager of Lake County Search and rescue for more information and to sign up as a medical volunteer.
Thanks in advance for your help — we couldn’t do it without you!
90 + Day Out From Event:
- Option 1: Receive a 60% refund on the entry fee
- Option 2: Defer into the following year, pay a deferral fee of 40% of the entry fee.
- Leadville Trail Marathon Option 1: Receive a $81 refund
- Leadville Trail Marathon Option 2: Defer into the following year, pay a deferral fee of $54.
- Heavy Half Option 1: $72.
- Heavy Half Option 2: $48.
89 Days or Less From Event:
- Defer into the following year, and pay a deferral fee of 40% of the entry fee.
No transfers.
A race entry can only be deferred one time and only to the following year’s event.
- Want to defer your entry? Please email our athlete services manager with your name and the event from which you are deferring.
- Please see our deferral policies page for complete information on deferrals.