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Lake Sonoma 50

Saturday April 12th, 2025
Healdsburg, CA
Distance: 50 k · Ultra
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The race is held on the rugged trails at Lake Sonoma, about 10 miles northwest of Healdsburg. The course is 86% single track and 9% dirt roads, with the first 2.4 miles on a paved country road.The race starts at 6:30 a.m. and has a 14-hour time limit.

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Lake Sonoma 50

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Lake Sonoma 50, Race Date: 2024-04-13, Distance: Ultra
Division Time Name Age Home
Male 06:30:17 Francesco Puppi 32
2nd Male 07:48:59 Daniel Button 37
3rd Male 07:52:19 Grant Hotaling 40
4th Male 07:55:57 TJ David 37
Female 08:44:11 Lindsay Allison 28
2nd Female 08:44:44 Anna Fisher 31
3rd Female 08:47:48 Andrea Stofko 28
4th Female 09:16:07 Mikaela Wapman 33
Division Time Name Age Home
Lake Sonoma 50

The course is an out-and-back circumnavigation of the Warm Springs Arm of Lake Sonoma. It is 86% single-track trail and 9% dirt fire roads, with the first 2.4 miles on pavement. The trail is relentlessly rolling with three significant climbs.

There is about 10,500 feet of elevation gain and an equal amount of loss over the 50 miles. Trail quality is generally good;there are very few rocks and almost no roots. However, much of the trail is seldom used and so you can expect a lot of leaves and sticks on the trail.

There are twelve creek crossings and it is likely that your feet will get wet in most – if not all – of them.


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