The plan will appear closer to the race. For now, check a previous season's plan.
This race has no track yet. Have a GPX file or a link to the course? Send it, the team will check and add it.
Lake Sonoma LS 100k is the 100km ultra trail at Lake Sonoma 2027 (Lake Sonoma Visitor Center, Geyserville, United States). The race starts on April 10, 2027 at 05:00 AM. It starts in Lake Sonoma Visitor Center, Geyserville. The time limit is 19 h.
The course climbs 4570m+. With 46m/km of climbing, this is a true mountain course with sustained climbs and descents.
This page has a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Lake Sonoma LS 100k.
Other distances of Lake Sonoma 2027Lake Sonoma LS 50k (50.0km)·Trail Sisters Half Marathon (21.0km)
Other editions of Lake Sonoma LS 100k2026
Official websiterunlakesonoma.com
