Trail Running calendar near Angwin 2025-2026

Willow Hills XC Open is the Buffalo Chips Running Club’s 16th annual cross-country race held in Folsom, California, near Folsom High School. The event features a single 5K course run in two laps around a water reservoir adjacent to Folsom High School, characterized by rolling hills. Runners compete..

The California Fall Classic at Lake Sonoma offers two ultramarathon distances: 100K and 55K, run at Lake Sonoma near Healdsburg, California. The weekend features on-site camping, live music, and local food, wine, and beer, with proceeds supporting the Children of Vineyard Workers Scholarship Fund. R..

The California Fall Classic at Lake Sonoma offers challenging 100K and 55K ultramarathon races set in the scenic wine country of Lake Sonoma, California. Known for its relentless courses featuring miles of single-track trails with stunning lake views, the event takes place in the fall, providing coo..

The Diablo Summit Stomp takes place on October 18, 2025 in Walnut Creek, California (1700 Castle Rock Road). Distances offered are: 30K Half Marathon 10K 5K All distances are run on dirt trails in Castle Rock Park and Mount Diablo State Park. The 30K route reaches the summit of Mount Diablo. Walk..

The Running Dead 5K Fun Run in Union City, California, is a Halloween-themed community race at Civic Center/City Hall (34009 Alvarado-Niles Road). It offers a 5K open to adults and a 5K Youth option for younger runners. The course follows the Alameda Creek Trail from City Hall and returns to the fin..

Wise Villa Fall Harvest Run is a 5k chip-timed race/walk staged at Wise Villa Winery in Lincoln, California. The two-loop course starts and finishes at the winery, winding through the property with spectacular views; the route is described as hilly with uneven terrain, suitable for runners and walke..

Oakland Hills Trail Run, staged in Redwood Regional Park just east of downtown Oakland, offers three distances: 35K (about 22.8 miles), a Half Marathon (13.3 miles) and a 10K. Runners traverse a lush coast redwood forest and other parklands on a mix of technical dirt trails and non-technical fire ro..

2025 Napa Fall Wine Country Marathon, Half Marathon & 10K takes place in Bothe-Napa Valley State Park along Saint Helena Highway in Saint Helena, CA. The course uses lush single-track trails with hills, streams and rocky sections, delivering a rugged and rewarding challenge, set just minutes from Na..

The 27th Annual Matt Yeo Memorial Aggie XC Open, presented by the HOKA Aggies, is held at Radke Martinez Regional Shoreline in Martinez, California. The meet features three 4.1-mile cross-country races for Women, Masters Men, and Open Men, all run on a course with grass, dirt, and path footing. The..

Haunted Hills 10K, held in Redwood City, California, blends Halloween fun with a competitive run on October 25, 2025. Runners choose the 10K or 5K course, weaving through neighborhoods decorated for the season. Participants form teams of 1–5 and carry headlamps or flashlights.It's trick-or-treating..

The 39th Golden Gate Park XC Open, held at Lindley Meadow (30th Ave & JFK Dr) in San Francisco's Golden Gate Park, is a 5k cross-country race over grass, dirt, and rolling hills. It features Masters Women 40+ and Masters Men 40+ along with Open Women and Open Men, and serves as the USATF Masters 5k..

Rio Del Lago 100 Mile Endurance Run is a premier ultramarathon held at Beal’s Point in the Folsom Lake State Recreation Area, about 40 minutes east of Sacramento. The event features a 100‑mile race and a 50K endurance run, both looping from Beal’s Point toward Auburn and back along the American Rive..

The Oakland Tech 5km Fundraiser Race and 1 Mile Fun Run/Walk takes place at Joaquin Miller Park Meadow in Oakland, California. This event features a 5K trail run and a 1-mile fun run/walk, offering participants scenic views with towering trees and a course that is both enjoyable for casual runners a..

NorCal Backyard Ultra returns to Beals Point at Folsom Lake, near Granite Bay, CA, for its third edition. Two formats: Last Person Standing (4.2-mile loop, hourly until one remains) and Mini Last Person Standing (24 hours). The scenic course runs on rolling singletrack with lakefront views.No on-cou..

Lake Chabot Trail Run is a multi-distance trail race held at Lake Chabot Regional Park – Marina in Castro Valley, CA. The event offers 8K, Half Marathon, 30K, Marathon, 50K, and a Kids Run, inviting runners of varied backgrounds. The course starts at the Marina and loops around the Lake Chabot reser..

Mt. Tam Trail Run is a multi-distance trail race held at Stinson Beach, near Mt. Tamalpais State Park in Marin County, California.Distances include 50K, 30K, half marathon, and 10K, featuring a climb up Mt. Tamalpais and looping through the Headlands to the beach. Elevation gains range around 1,600..

Falcon Crest Winter Trail Challenge takes place in the foothills of El Dorado Hills, California, at the Falcon Crest Parking Lot / Monte Vista Trailhead near Folsom Lake. The event offers six distances: 5K, 10K, 15K, half marathon, 30K, and a trail marathon. Runners navigate dirt and rocks on mostly..

The Golden Gate Trail Classic will take place in San Francisco from Saturday 22 November 2025 to Sunday 23 November 2025. You can run between 15 and 50 miles.

Darrington Single Track Trail Challenge is a multi-distance trail-run event held in Pilot Hill, California, near Sacramento. Participants can choose from four distances: 36 Miler, 18 Miler, 10K, and 5K. The race traces a single-track route along the shores of Folsom Lake, featuring stony dirt paths..

The Wild Turkey is a Thanksgiving Day trail race scheduled for November 27, 2025 in Granite Bay, California (Beals Point / 9704 Auburn Folsom Rd, Granite Bay, CA 95746). The event includes the following distances: 5k 10k 1 km kids run (free) Adult registration is listed at $41.28 (includes a $3.2..