Geyserville
Trail Running Calendar near Geyserville 2026-2027
Explore the top trail runs near Geyserville for 2026-2027! We've gathered 9 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
October 2026
Lake Sonoma trail races on October 17 and 18, 2026 featuring 100 mile, 50 mile, marathon, half marathon and relay options on singletrack around the lake.
November 2026
The 40th annual Annadel Loop is a 6.45 mile trail race in Annadel State Park with staggered starts, awards for the top 13, a limited field, and published member and non member fees.
Trail races at Brassfield Estate Winery in High Valley AVA offering 5K, 10K and 10 mile courses with vineyard views, a finish line celebration, and wine for 21 and over.
An uphill 3.1 mile trail race in Kelseyville on November 14, 2026, running from the base of Mt. Konocti to Wright Peak with summit awards and post-race lunch.
March 2027
Trail event in Middletown CA on March 7, 2027 offering Half Marathon, 10K and 5K on a scenic looped course with camping options and post race food.
Trail marathon, half, 10K and 5K through Bothe-Napa Valley State Park on March 20, 2027, limited to 300 participants with marked single track routes.
April 2027
Three Lake Sonoma trail races in early April 2027 including a Western States qualifying 100k, a 50k with a bridge crossing, and a women only half marathon.
Trail running event on April 17, 2027 with a hilly half marathon, 10K and 5K, over 1500 ft of ascent and a cup-free policy.