Lake Sonoma

Fri April 7 - Sat April 8, 2023 Directions

Trail Sisters Women's Half Marathon

$115 04/07 9:00AM PDT - 1:30PM PDT Registration ends February 28, 2023 at 11:59pm PST

Lake Sonoma 50 Mile

$250 04/08 6:30AM PDT - 8:30PM PDT Lottery registration closes October 28th. Participants will be selected and charged on November 2nd.

Lake Sonoma Marathon

$150 04/08 8:00AM PDT - 6:00PM PDT Registration ends February 28, 2023 at 11:59pm PST

Join us in Healdsburg, California, April 7th and 8th 2023 for the famed Lake Sonoma 50 Mile, Marathon, and NEW Trail Sisters Half Marathon!

The 50 Mile and NEW Trail Sisters (TS) women’s half marathon courses are an out and back style, whereas the marathon course will make a complete loop around Lake Sonoma, crossing the iconic lake bridge. All of the courses boast of “relentless” rolling hills surrounding beautiful Lake Sonoma. Additionally, the out and back courses present an ability to connect with other runners, providing opportunity for high-fives and well wishes.

When it comes to performance, these are perfect events for speedsters looking to test their fitness, and for the first timers who are looking for a challenging, yet encouraging course. New for 2023, we will be providing cash awards for the top five male and female athletes in the 50 mile event!

In true trail community fashion, all three race events will now start and finish at the Lake Sonoma Visitor Center green space. This new festival-like atmosphere is designed for celebration and for fostering community. Oh, and did we mention the opportunity to camp… (details to come!)

Speaking of celebrating, we will have a full schedule of pre and post-race events, including athlete panels, community dinner, socials, and of course wine tastings. You can’t come to Lake Sonoma and not visit a winery!

We hope you will join us for the 50 Mile, Marathon, and TS Half Marathon, April 7th and 8th. We look forward to celebrating with you at that finish line!

Race Website

Additional race information can be found at

Race Contact Info

If you have any questions about this race, click the button below.


Lake Sonoma Visitors Center @ 3227 Stewarts Point-Skaggs Springs Rd, Geyserville, CA 95441

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