Windsor Half Marathon 10K & 5K

The Windsor Half Marathon, 10K, & 5K is a scenic road race scheduled for Saturday, May 16, 2026, in Windsor, California. Set in the heart of Sonoma County's Russian River Valley, the course takes runners through local vineyards and historic areas, starting and finishing at the Windsor Town Green. The event highlights the region's wine-making heritage and craft beer scene, featuring post-race perks like local vintage pairings and a visit to the nearby Russian River Brewing Company.

The Half Marathon course is designed for runners, while the 5K and 10K routes are described as flat and fast, making them ideal for those seeking personal records or a casual walk. Five aid stations are distributed along the Half Marathon route, approximately every 1.5 to 3 miles, providing water and electrolytes. All finishers receive a custom medal and a race shirt, as well as a voucher for a complimentary beer, wine, or root beer at the post-race celebration.

Windsor is a town in Sonoma County with an estimated population of 26,000 residents. The area is a major hub for Northern California's viticulture industry, situated just north of Santa Rosa. Geographically, the town is nestled between the Russian River and the foothills of the Mayacamas Mountains. The Windsor Town Green serves as the community's focal point, hosting year-round events including farmers markets and concerts, and it is designed to evoke a "traditional" small-town square atmosphere.

Registration for the event follows a tiered pricing model, with a price increase scheduled for April 20. Participants under the age of 12 receive an automatic $10 discount on any race distance. For safety reasons, the course is strictly limited to runners and walkers; pets, bicycles, and rollerblades are prohibited. The event is managed by Race Director Tawnya Bruno, and further technical information regarding course maps and registration protection can be found on the official event website.