Trail Running calendar near Modesto 2025-2026

Placerville's Holiday Jingle & Mingle Run takes place on the scenic El Dorado Trail in historic Placerville, California. This festive event offers multiple race distances including a half marathon, 15K, 10K, 5K, mile, and a kids run, accommodating runners of all ages and abilities. The course featur..

Woodside Ramble, held at Huddart County Park in Woodside, CA, offers 10K, half marathon, 35K, and 50K trail races through Huddart and Wunderlich Parks along redwood-canopy trails, including Crystal Springs and Skyline Trails, with streams, canyons, and sweeping ridgeline views. The course features m..

Brazen Racing’s Almost New Year’s Eve is a trail-running event at Lake Chabot in Castro Valley, California. Runners may choose from a Half Marathon, 10K, or 5K, with hikers and walkers welcome. The race navigates Lake Chabot’s scenic trails, delivering a festive, outdoor atmosphere as participants c..

Brazen New Year's Day 2026 takes place at Lake Chabot in Castro Valley, California. Runners can choose from a half marathon, 10K, or 5K on Lake Chabot’s scenic trails. The course loops around the lake and is described as scenic and invigorating, offering a family-friendly atmosphere as participants..

The Hacienda Hills Trail Run - Winter is a trail running event held at Almaden Quicksilver County Park near San Jose, California. It offers nine race distances ranging from a Kids Run and 1 Mile to challenging 50K and Marathon options, all featuring increasing elevation gain through scenic Northern..

The IPA Beer Trail Runs, held at Granite Beach in Folsom Lake State Recreation Area, offer two scenic trail race options: a 5K and a 12K along well-marked single-track paths with beautiful lake views. The event combines challenge and fun, culminating in a festive atmosphere where runners over 21 can..

Hope in Every Step 5K takes place on January 10, 2026 in Modesto, California. The event is a 5K run/walk on a 3.1-mile course using the trails at East La Loma Park, located at 2001 Edgebrook Drive, Modesto, CA 95355. Proceeds and donations from the event will benefit the Sutter Pediatrics Departmen..

The Crystal Springs Trail Run takes place on Sunday, January 18, 2026, at Huddart Park (Werder Shelter), 1100 Kings Mountain Road, Woodside, CA 94062. The event offers the following distances: 8K - Elevation gain 710'; Single Track 48%, Dirt Road 40%, Asphalt 12% Half Marathon - Elevation gain 2,1..

The Crystal Springs Trail Run takes place at Huddart Park (Werder Shelter), 1100 Kings Mountain Road, Woodside, CA. The event includes the following distances: 8K Half Marathon 35K Marathon 50K Kid's Run (6yo & younger, 50 yd dash) - Free Race-day check-in begins at 7:00 a.m. at Huddart Park..

Folsom Lake Sweetwater Trail Run takes place at Folsom Lake State Recreation Area, Salmon Falls Parking Lot in El Dorado Hills, California. The event offers eight distances: Kids Run, 1 mile, 5K, 10K, 9 Mile, Half Marathon, 30K, Trail Marathon, and 50K. The course is 95% single-track with 5% dirt ro..

The Gumby 10K and 5K are trail running events held at Granite Beach, Folsom Lake State Recreation Area. The races feature scenic courses along the shores of Folsom Lake, with well-marked trails and enthusiastic volunteers providing support. Aid stations are strategically placed throughout the course..

Brazen Racing's Coyote Hills event takes place at Coyote Hills Regional Park in Fremont, California. The weekend offers three distances: a half marathon, 10K, and 5K, with walkers welcome and a Half Marathon Hiker Division for those taking longer than four hours. The course features a mix of paved,..

The Escape from Folsom is a trail running event held at Granite Beach, Folsom Lake State Recreation Area. It offers two race distances: a 10-mile run and a 5K (3.1 miles), both featuring scenic trails adorned with wildflowers. The course includes multiple aid stations providing water, electrolyte be..

Mt. Umunhum Trail Conquest-Winter is an endurance trail running event in San Jose, California, starting at the Hacienda Entrance of Almaden Quicksilver County Park. Runners can choose 5K, 7 Mile, half marathon, 30K, trail marathon, 50K, and a Kids Run.The 30K climbs Bald Mountain, while the Trail Ma..

The Bay Breeze race takes place on February 14, 2026, at San Leandro Marina Park, 14001 Monarch Bay Dr, San Leandro, CA 94577. The event offers the following distances: Half marathon 10K 5K A remote-run option is listed for the event. All race distances start and finish at San Leandro Marina Par..

Redtail Ridge at Lake Chabot Regional Park in Castro Valley, CA offers multiple distances: 5K, 10K, Half Marathon, 30K, and 50K. The course unfolds on a mix of moderately technical dirt trails and non-technical fire roads, with some paved sections, and features rolling hills that reward pacing and t..

The Lost Trail Half Marathon and 5K take place at Granite Beach, Folsom Lake State Recreation Area, offering runners scenic lake views and vibrant wildflowers along well-marked courses. The half marathon covers 13.1 miles, while the 5K is 3.1 miles. The event features five aid stations strategically..

Redwood (Spring) Trail Run is held at the Chabot Space & Science Center in Oakland, California, featuring multiple distances from 5 miles up to 50K, plus a Half Marathon, Marathon, 30K, a 5K, and several youth events. The course winds through Redwood Regional Park, offering spectacular views along t..

The Western Pacific Marathon event, held at Quarry Lakes Regional Recreation Area in Fremont, California, offers runners a choice of half marathon, 10K, and 5K distances. The course is mostly flat, following the historic Western Pacific Trail, which was originally used in the 1800s to transport grav..

Bad Ass Backyard Ultra (B.A.B.U.) takes place at Dry Creek Parkway in Rio Linda, Sacramento, California. The event uses the traditional backyard ultra format: a 4.16-mile loop with a new loop starting each hour; anyone not in the start corral at the hour is eliminated, and the winner completes the m..