Lake Sonoma Lake Sonoma 50 is the 80.0km ultra trail at Lake Sonoma 2025 (Healdsburg, United States). The race starts on April 12, 2025.
The course climbs 3020m+. With 38m/km of climbing, this is a rolling, mostly runnable course. By gradient, 42% of the distance is uphill, 38% downhill and 20% flat. Surface: 88% trail and 5% road. Flat-equivalent effort: 97.2 FlatKM.
Poles bring little benefit here: only about 3.1km of pole-friendly terrain.
Quad damage risk is moderate (index 35 of 100), with 43% of the load in the first half: 0 descents deserve a plan and a couple of downhill sessions before race day.
This page has a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Lake Sonoma Lake Sonoma 50.
Other distances of Lake Sonoma 2025Lake Sonoma Marathon (42.0km)
