Santa Rosa
Trail Running Calendar near Santa Rosa 2026-2027
Explore the top trail runs near Santa Rosa for 2026-2027! We've gathered 12 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
August 2026
Time based trail running at Skyline Wilderness Park in Napa where participants run as far as they can in 3 hour, 6 hour, or 12 hour formats on a 4.16 mile loop.
The 33rd annual Phil Widener Empire Open is a 3.4 miles PA/USATF cross country race at Spring Lake Regional Park featuring rugged trails and a $1500 prize purse.
September 2026
A community ultramarathon and hike at Skyline Wilderness Park in Napa, CA, featuring a 3.3-mile loop repeated up to ten times in an hourly format to raise funds for the Pheo Para Alliance.
October 2026
A 6.45 mile trail race in Annadel State Park organized by the Empire Runners Club, limited to 100 runners with staggered starts and awards for the top 13 finishers.
Multi distance trail running at Lake Sonoma offering 100 mile, 50 mile, marathon and 4 person relays with singletrack, aid stations, drop bags and on site camping.
Trail races at Bothe Napa Valley State Park offering marathon, half marathon, 10K and 5K on single track with streams and hills, limited to 300 participants.
March 2027
March 7, 2027 in Middletown CA: trail Half Marathon, 10K and 5K on a steep, scenic course with spring views and camping available.
A three day trail running weekend in Marin County offering a point to point 100K plus single loop 50K and 28K that summit Loma Alta and Big Rock Ridge.
April 2027
Trail fundraiser on April 17, 2027 offering a Half Marathon, 10K and 5K with a hilly technical half and a cup free policy.
May 2027
A 13.1 mile point to point half marathon through Napa Valley vineyards, mostly on private winery roads, finishing in Yountville's Wine Village.
Trail races at Skyline Wilderness Park near Napa on May 15, 2027 offering 10K, 21K, 30K and 50K courses with new trails, aid stations, and a cupless policy.