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43.1 kmTrail🇺🇸 Geyserville, United States

Lake Sonoma Trail Marathon

Saturday, 17 October 2026In 6 days · Start 08:00

Official site

The classic Lake Sonoma loop through oak woodland above the lake, with creek crossings that you can wade or swim.

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Facts checked 10 Oct 2026 against aravaiparunning.com.

Elevation gain
1,800 m
Mountain · ↓ 1,800 m
Start altitude
146 m
above sea level, from terrain data
Temp at start
12°C
Peaks around 24°C
Entry fee
≈ $175
Open entry
Finishers
—
typical year
Course
Loop
11h cut-off
Getting thereFly into SMF (Sacramento), about 123 km from the start

Course map

A detailed route is not available for this race yet. The marker shows the race location.

Elevation profile

Mountain: about 1,800 m of climbing and 1,800 m of descent. A detailed profile isn’t available for this race yet.

Race-day weather

At start
12°C
Peak during race
24°C
Humidity
54%
Chance of rain
9%
Wind
6 km/h

Race day in past years

Historical averages for 17 October ±3 days, 2016–2025, from 08:00 for 5 hours (70 days sampled). Source: Open-Meteo / ERA5.

Course records

Men
3:02:57 · Daniel Jones (2025)
Women
3:33:42 · Jennifer Lichter (2022)

As of the 2025 season.

What time could you run here?Adjust your goal time for this course’s hills and typical race-day weather.Race time calculator →

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Show your runners the course facts and race-day weather. Paste this code into your site; it displays the badge below and links to this page. It updates automatically when the race details change.

Plan your trip

Searches are set for Geyserville and the race weekend.

Hotels near the start lineClosest first · 2026-10-16 → 2026-10-18Booking.com Flights to GeyservilleArrive 2026-10-15, fly home 2026-10-19Google Flights Things to do in GeyservilleTours and attractions in United States for the days around the raceGetYourGuide

Gear for this race

Trail running shoesGrip for the unpaved sectionsHydration vestCarry water and food between aid stationsElectrolyte tabletsIt often reaches 24°C during the raceTrekking polesHelp on long, steep climbs

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