Leadville Trail 100
Race Day Weather
Cool start, warming up, adjust pace
Runners will face a temperature rise from 49°F at the start to a high of 72°F, with average humidity at 53%. A headwind will challenge runners from miles 1 to 4, and again in miles 13 and 22, making pacing adjustments crucial. As temperatures increase, especially after mile 6, hydration will be key, and runners should consider a conservative start to manage the heat on the hilly terrain.
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Race Info
The Leadville Trail 100 Run (aka The Race Across The Sky or the LT100) is an ultramarathon held annually on rugged trails and dirt roads near Leadville, Colorado, through the heart of the Rocky Mountains. First run in 1983, the race course climbs and descends 15,600 feet (4,800 m), with elevations ranging from 9,200 to 12,620 feet (2,800–3,850 m). In most years, fewer than half the starters complete the race within the 30-hour time limit. Wikipedia
