Lake Sonoma 50K
2027 at a glance
- EntryNot confirmed yet
- Race day
- ResultsAfter race day
- Race day
- Apr 10, 2027 Saturday
- Distance
- 50 km Ultramarathon
- Entry
- Not confirmed
- Latest results
- 2026
Quick facts
- Rolling singletrack around Lake Sonoma
- Crossing of the Lake Sonoma bridge
- Steep downhill run to the finish
- Wine tasting celebration after race day
Course
After a short road stretch from the Lake Sonoma Visitor Center, the course moves onto rolling singletrack past South Lake, Island View, Warm Springs Creek, Liberty Glen and Bummer aid stations, then crosses the lake bridge and drops steeply toward the finish.
Race-day weather
April mornings at Lake Sonoma are often cool and pleasant, with warmer afternoons on exposed slopes. Recent rain can make the trails slick.
About the race
The 50K is the shorter ultra at the Lake Sonoma trail weekend in northern Sonoma County, sharing the festival finish and wine tasting celebration with the 100K and the women's half marathon.
Dates and results by year
FAQ
When is the Lake Sonoma 50K?
The 2027 Lake Sonoma 50K is on Saturday, April 10, 2027.
Where can I find the Lake Sonoma 50K results?
The 2026 results and earlier years are on the results page.
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