Our Mission is to increase women’s participation and opportunity in trail running and hiking through inspiration, education and empowerment.
Join us in Healdsburg, California, on April 11th 2026 for the TERREX Lake Sonoma 100k, 50k, and Trail Sisters Half Marathon! We are excited to welcome back adidas TERREX as our presenting partner!
We are stoked to team up with Mountain Oupost to bring you full livestream coverage, athlete panels, interviews, and commentary from special guests!
Lake Sonoma isn’t just a race event, it’s a celebration. We always complete the weekend with a Celebration and Thank You event at Coyote Sonoma in Healdsburg, CA. Everyone involved with the event is invited to enjoy wine, charcuterie, and share stories from the weekend.
See you on that start line!
Gina & Justin
LS Race Directors
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