The 2026 Leadville Trail Marathon & Heavy Half has concluded.Share your finish

Leadville Trail Marathon & Heavy Half

Race complete
Leadville, CO, USA · June 27, 2026
partly-cloudy-day42°·69° high·Gusty·Dry
8
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Race Day Weather

partly-cloudy-day
42°at start
71° high
Gusty
Dry

Cool start, shifting winds ahead

Runners will face a temperature increase from 42°F to 70°F, with max winds reaching 25 mph and gusts up to 38 mph. The first critical segment features a challenging crosswind from miles 1 to 4, followed by a beneficial tailwind at mile 5. As the hills increase, particularly from miles 11 to 14, runners should prepare for a headwind in the latter half of the race, adjusting their pacing accordingly.

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partly-cloudy-day8
clear-day8
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Pace Calculator

Distance: 26.4mi
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Race Info

This is a 26.2-mile (42.2 km) marathon through the mining districts east of Leadville, is held in June each year. The midpoint of the course is at Mosquito Pass, with an altitude of 13,185 feet (4,019 m). In 2006, a "heavy" half marathon event of 15 miles was added, which is run on the same day and also goes to the top of Mosquito Pass. Wikipedia

FAQ

When is the 2026 Leadville Trail Marathon & Heavy Half?

The 2026 Leadville Trail Marathon & Heavy Half will be held on Saturday June 27, 2026.

What is the time limit for the Leadville Trail Marathon & Heavy Half?

The time limit for the Leadville Trail Marathon & Heavy Half is 8.5 hours.

What will the weather be like for the 2026 Leadville Trail Marathon & Heavy Half?

The forecast calls for a high of 71°F and a low of 39°F with a 100% chance of rain.

What is the elevation profile of the Leadville Trail Marathon & Heavy Half?

The Leadville Trail Marathon & Heavy Half has 6167ft of total elevation gain. View the interactive course map above for a detailed elevation profile.

Historical Weather

Based on 24 years of data
Avg Temp
67°F
L:46° H:69°
RunScore
8
Conditions
Rain Freq
4%
1 of 24 yrs
Wind13mph
Dew27°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-day
46°/70°-
7
2025
clear-day
41°/72°-
8
2024
cloudy
50°/72°-
8
2023
partly-cloudy-day
35°/52°Light
6
2022
cloudy
50°/64°-
8
2021
partly-cloudy-day
44°/68°-
8
2019
clear-day
38°/62°-
8
2018
clear-day
48°/64°-
8
2017
clear-day
55°/70°-
8
2016
clear-day
47°/77°-
9
2015
clear-day
49°/74°-
8
2014
clear-day
49°/59°-
8
2013
clear-day
47°/74°-
8
2012
clear-day
47°/71°-
8
2011
clear-day
44°/72°-
8
2010
clear-day
45°/70°-
8
2009
clear-day
48°/74°-
8
2008
clear-day
47°/73°-
8
2007
clear-day
45°/72°-
8
2006
clear-day
45°/71°-
8
2005
clear-day
46°/70°-
8
2004
clear-day
38°/66°-
8
2002
cloudy
47°/68°-
8
2001
clear-day
48°/81°-
8