Trail Running calendar near Rio Linda 2025-2026

Event overview The Auburn Half Marathon takes place on October 4, 2025, in Auburn, California. The event is organized by Brazen Racing and includes trail race options: Half Marathon 12K 5K A remote runner option is offered. Races are held..

Run scenic single track and fire road loops around San Pablo and Briones Reservoirs at the Reservoir Dogs Trail Run. Choose 10K, Half Marathon or 35K and enjoy small field trail vibes, aid stations and great views.

Run through brilliant fall color around Fallen Leaf Lake and Tahoe Mountain with the Kokanee Trail Runs, offering half marathon, 10K, 5K and a kids Tadpole Trot. Scenic courses, great swag and Oktoberfest fun make this a Tahoe must do.

Yuba Gold Trail Runs : event status and location The Yuba Gold Trail Runs, scheduled for October 5, 2025 in Nevada City, CA, has been cancelled. The event was organized by Skybreaker Racing and was to use North Bloomfield (Malakoff Diggins..

Mile Madness returns Oct 10 to 13, 2025 at Sunset Whitney Recreation Area in Rocklin CA, with 6, 12, 24, 48 and 72 hour events plus a 100 mile plus challenge on a fast 1.07 mile loop. Join a spirited community chasing buckles and big person..

Explore Tiburon Peninsula trails at Go Wild! Marin in Corte Madera on October 11. Pick a 2 Hr or 4 Hr solo or team map run to find up to 24 checkpoints, then relax with refreshments and socializing.

Event information Euchre Bar Massacre takes place on October 11, 2025, near Foresthill, California. The event is free to enter and registration is limited to 50 people total. Registration closes October 10, 2025. The organizer maintains a w..

Event overview Granite Head Trails & Ales is a trail running event on Saturday, October 11, 2025, in Granite Bay, California. Both race courses start and finish at Granite Beach. The event is presented by Altra and the local contact is..

Test yourself at the Napa Lapa Trail Adventure in Skyline Wilderness Park with 3, 6 and 12 hour solo and relay options. Run a rugged 4.16 mile loop with big climbs, technical singletrack and on course aid as you race for distance.

Event overview The event is three cross-country races held at Miwok Meadows in China Camp State Park, San Rafael, CA. The races are run as a memorial to a Tamalpa Runner who died in 2000. Each race uses the same course as in 2024 and is rou..

Champion Mine Trail Race is held in Nevada City, California, featuring two events: a half marathon (13.1 miles) and a 5K Fun & Fitness Run/Walk. The inaugural race from the Bear Yuba Land Trust and Sierra TrailBlazers uses a dynamic mix of..

Vampire Run - Unite for Bleeding Disorders is held in Roseville, CA, at Vernon Street Town Square in Downtown Roseville. It features a first-ever 5K on the Roseville trails, offered as a timed run with adult 5K and child 5K (under 14) and a..

Run through history at the California Gold Rush Trail Run in Coloma's Marshall Gold Discovery State Historic Park, with distances from a kids run to a half marathon on scenic singletrack. Medals for 5K and up and race day sign up.

Event overview The 16th annual Willow Hills XC Open is scheduled for Saturday, October 18, 2025. The event is part of the Pacific Association USATF Cross Country Grand Prix. Races are held at Willow Hill Reservoir Community Park next to Fol..

Event overview The California Fall Classic at Lake Sonoma is a trail ultramarathon held at Lake Sonoma near Healdsburg, California on October 18, 2025. The event offers two distances: 100K 55K The 100K is a Western States Endurance Run qu..

Event overview The Diablo Summit Stomp takes place on October 18, 2025, at Castle Rock Park / Mount Diablo State Park in Walnut Creek, California. The event offers four trail distances: 30K Half Marathon 10K 5K Walkers and hikers are allo..

Heart of Cool Trail Run is held in Cool, California (860 Cave Valley Rd, Cool, CA 95614) on Sunday, October 19, 2025. The event offers three trail distances: 5k Trail Run/Walk, 10k Run/Walk, and Trail Half Marathon. The course winds through..

The Fleet Feet Fall Classic Trail race takes place in Upper Bidwell Park, Chico, California, featuring two trail events: a challenging half marathon and a 4-mile endurance challenge. The half marathon includes a steep 1600 ft climb in the f..

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,..

Explore scenic single track around Jenkinson Lake at the Trail Run at Sly Park in Pollock Pines, CA on October 25, 2025. Distances from 5K to 50K offered on shaded pine trails with aid stations and medals for all finishers.