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Trail Running Calendar near San Carlos 2026-2027

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Explore the top trail runs near San Carlos for 2026-2027! We've gathered 67 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

February 2027
Feb
6
Sa

Golden Gate Trail Run

Trail Run 2 mi 8 km ... 26 mi 50 km
Experience the coastal beauty of the Marin Headlands at the Golden Gate Trail Run. Choose from distances ranging from a 50K trail race to a fun kids dash with views of the Golden Gate Bridge and San Francisco.
Feb
6
Sa

Mt. Umunhum Trail Conquest - Winter

Trail Run 5 km 7 mi ... Marathon 50 km
Trail race at Almaden Quicksilver Park offering distances from a kids run to 50K, out-and-back courses with marked trails, aid stations, and summit routes to Mt Umunhum.
Feb
20
Sa

Montara Mountain Trail Run

Trail Run 2 mi 10 km ... 26 mi 31 mi
Experience the unique Coastal Mountain Habitat and Pacific Coast views at this trail event in Pacifica. With distances from a kids dash to a 50K there are options for many different types of trail runners.
Feb
20
Sa

Redtail Ridge

Trail Run 5 km 10 km ... 35 km 50 km
Trail races from 5K to 50K through eucalyptus forests and lakeside trails at Lake Chabot Regional Park near Castro Valley, CA.
Feb
27
Sa

Sanborn Trail Challenge

Trail Run 4 mi 8 mi 13 mi
Trail runs in Sanborn County Park near Saratoga with Kids, 1 Mile, 4 Mile, 8 Mile and Half Marathon options on mostly single track forest trails.
Feb
28
Su

Zoom Angel Island

Trail Run 2 mi 5 mi 10 mi 15 mi
Experience a trail run across the forest and hills of Angel Island with views of San Francisco and the Golden Gate. Choose from multiple race distances including a youth dash and enjoy a picnic at Ayala Cove.
March 2027
Mar
6
Sa

Race to the Top of Mt. Umunhum

Trail Run 13 mi
Point to point half marathon from the Hacienda Entrance up to Mt Umunhum with 4,767 feet of ascent, marked aid stations, drop bag service and shuttle transport back to the start.
Mar
13
Sa

Marin Ultra Challenge

Trail Run 50 km 50 mi
A coastal and mountain trail ultramarathon in Marin County offering 50M and 50K routes with technical single-track, fire roads, and significant elevation gain.
Mar
20
Sa

South Hills Single Track Trail Run - Spring

Trail Run 5 km 10 km ... Marathon 50 km
A multi-distance trail running event at Calero County Park on March 13, 2027, featuring single track trails, multiple aid stations, and options from a kids run to a 50K.
Mar
20
Sa

Redwood (Spring) Trail Run

Trail Run 5 mi 13 mi ... 26 mi 50 km
Multiple trail distances run through Redwood Regional Park on March 20, 2027 at Chabot Space & Science Center. Routes use East Ridge, West Ridge, Stream and Bridle trails and distances were measured with a Rolatape surveyor's wheel.
Mar
27
Sa

Western Pacific Marathon

Trail Run 5 km 10 km Half Marathon
A trail and road running event at Quarry Lakes Regional Recreation Area offering Half Marathon, 10K, 5K and a remote runner option on March 27, 2027.
April 2027
Apr
3
Sa

Santa Teresa King Richard Annual Trail Run

Trail Run 5 km 10 km 10 mi 13 mi
Trail race at Santa Teresa County Park on April 3, 2027 offering 5K, 10K, 10 mile and half marathon on marked, hilly trails.
Apr
3
Sa

Diablo Trails Challenge

Trail Run 5 km 10 km Half Marathon 50 km
Trail running event in Walnut Creek on April 3, 2027 offering 50K, Half Marathon, 10K and 5K with a portion of entry fees benefiting Save Mount Diablo.
Apr
10
Sa

Romancing the Island Half Marathon

Trail Run 10 km Half Marathon
A hilly loop race around Angel Island offering a Half Marathon and 10K, limited to 400 participants with ferry access from Tiburon and a 3.5 hour course cutoff.
Apr
17
Sa

Horseshoe Lake Trail Run

Trail Run 2 mi 5 mi ... 26 mi 31 mi
A trail event at Skyline Ridge Open Space Preserve offering distances from a 50 yard kids dash to a 50K race. Routes run largely on the Bay Area Ridge Trail with ocean and Santa Cruz Mountains views.
Apr
24
Sa

Lake Chabot Trail Run

Trail Run 2 mi 5 mi ... 26 mi 31 mi
A trail event at Lake Chabot Regional Park offering distances from a 50‑yard kids dash to a 50K ultramarathon. The looped course circles the Lake Chabot reservoir and surrounding hills with measured distances.
Apr
24
Sa

No Foolin' Foot Race

Trail Run 5 km 10 km 15 km
No Foolin' Foot Race in San Carlos on April 24, 2027 offers 15K, 10K, 5K and a 1K kids trail course across Big Canyon, Eaton and Pulgas Ridge, with proceeds supporting local open space trail maintenance.
May 2027
May
8
Sa

Grizzly Peak Trail Run

Trail Run 2 mi 10 km ... 26 mi 50 km
Trail races from 50 yards to 50K around Lake Anza in Tilden Regional Park, Berkeley on May 8, 2027, with courses measured by a Rolatape wheel.
May
9
Su

Trailquake

Trail Run 3 mi 7 mi 13 mi
Trailquake in Saratoga on Mother's Day offers 5K, 10K, a half marathon and a hiker division on redwood and pine forest trails. Finishers receive custom medals and shirt options.
May
22
Sa

Run for Amma

Trail Run 10 km 30 km 50 km
Participate in a 10K 30K or 50K trail run at Skyline Ridge Open Space Preserve to support cancer research at UCSF.
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