Trail Running calendar near Rio Linda 2025-2026

Run the scenic Berkeley hills from Lake Anza in Tilden Park with distances from 10K to a rugged 50K, plus a free kids dash. Register early for a tee, all finishers get a custom medal, and parking is free.

Join the Wine Half Marathon in Napa Valley on May 9, 2026, a 13.1 mile route through vineyards from Rutherford to Yountville. Founded by four French American wine professionals, the race blends warm hospitality, surprises, and scenic trails..

Hit rugged singletrack at the Napa Wilderness Trail Runs in Skyline Wilderness Park, with 10K, 21K, 30K and 50K options. Expect steep climbs, sweeping valley views, spaced aid stations and a true backcountry trail experience.

Run Napa's Rim Rock 50, a rugged two loop trail challenge with solo and two person relay options. Camp at Skyline Wilderness Park and refill at cupless aid stations while enjoying scenic wildland views.

Join Wildcat 2026 on May 16, 2026 in El Sobrante for a road race offering half marathon, 10K, 5K and a remote option. Enjoy sweeping 360 degree views of the Bay Area while supporting the East Bay Regional Parks Campership Program.

Run scenic paved trails in Roseville on May 16, 2026 at the Wild Rose Half Marathon or join the fun 5K run or walk, finishing at Moksa Barrel House. All finishers get a medal and drink ticket and runners choose a tech shirt or BOCO hat.

Three supported runs cover the final 70 miles of the Western States course May 23 to 25, 2026 around Foresthill and Auburn, CA. Aid stations and bus transfers provided; bring your own water and meet experienced trail runners.

Hit the trails at Point Pinole Regional Shoreline on May 30, 2026 for Nitro Trail, a scenic trail running festival offering a half marathon, 10K and 5K. Choose a hiker start for a relaxed pace or join remotely while supporting local parks.

Cinderella Trail Run at Joaquin Miller Park, Oakland on May 30 offers distances from 8K to 50K plus a free kids dash. Run scenic redwood trails, earn a custom finisher medal, and enjoy stocked aid stations and shirts for pre registrants.

Run scenic trails at Lake Chabot on June 7, 2026 in a chip timed half marathon or 5K with ridge top views of Mt Diablo and the Bay. Presented by Castro Valley Sports Foundation as a fundraiser with finisher medals.

Run the Bay Area 100 on June 13, 2026, a point to point 100 mile race from UC Berkeley to Skyline High in Oakland. Enjoy epic East Bay ridge and redwood scenery with about 18,000 ft of climbing and a 33 hour cutoff.

Run the Cool Moon Trail Races in Cool, California on June 13 and 14, 2026 with distances from 5K to 100K on scenic singletrack and fire roads. Live tracking, chip timing, finishers get shirts and medals plus a 100K buckle and 50 mile plaque..

Tackle 100 miles in Cool, California on alternating lap loops through scenic singletrack and fire roads. Well marked with aid stations and crew access at the start, finishers earn a handcrafted Comstock Heritage buckle and medal.

Broken Arrow Skyrace at Palisades Tahoe June 18 to 21, 2026 is a four day mountain running festival with exposed high alpine terrain, ladders and possible snow. Nine distances span a big 46K to a kids run with food, craft beer and music.

Run the legendary Western States 100, a 100.2 mile trail ultramarathon through Sierra high country and gold country with 18,000 feet of climbing and scenic river crossings. The 2026 race is June 27 to 28 and entry is by lottery.

Run scenic singletrack and river canyons around Downieville, California in the Lost Sierra Endurance Race with 25K, 50K, and 100K options. Rugged mountain trails, solid aid support, and a lively finish await.

Run a scenic loop from Lake Chabot Marina through East Bay Regional Parks with 50K and half marathon options. Enjoy staffed aid stations, race shirt, Skyline socks and a finisher medal on this well supported trail event.

Run the Redwood Summer Trail Run in Oakland on August 15, 2026, with distances from a kids dash to a rugged 50K through scenic Redwood Regional Park. Pre registered runners get a tee and all finishers receive a custom medal.

Join the new Mammoth Bar Trail Runs on Sept 6, 2026 in Auburn CA with Half Marathon and 10K on single track and double track trails. Expect steep climbs, thrilling descents and sweeping views of the American River Canyon.

Run Diablo State Park on September 6 for scenic single track and dirt road trails with distances from 4 miles to 50K, plus a kids dash. Big climbs, frequent aid stations and sweeping views make this a must for trail runners seeking a challe..