Brea
Trail Running Calendar near Brea 2026-2027
Explore the top trail runs near Brea for 2026-2027! We've gathered 49 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
November 2026
Trail running event in Griffith Park on November 21, 2026 offering distances from 10K to 50K on singletrack and fire road.
Thanksgiving morning trail races in the Santa Monica Mountains near Reseda, featuring a half marathon, 10k and 5k with finish area amenities and race awards.
December 2026
Trail races at Crystal Cove State Park on December 12, 2026 include 15k, 6k and a 1k kids run with a $2,000 prize for the 15k.
Holiday-themed trail races at Griffith Park with 5 km, 10 km, 15 km and half marathon loop options on dirt horse trails.
January 2027
Trail running event at Whittier Narrows Nature Center on January 30, 2027, featuring 10K, 5K and a kids dash with finisher medals.
Multi distance trail run and hike in Griffith Park with an out and back to the Hollywood Sign viewpoint, chip timing, aid stations, and finisher awards.
A trail event in Griffith Park with multiple distances, featuring an out and back 8 mile route to the Hollywood Sign viewpoint, aid stations, chip timing, and finisher medals.
February 2027
A half marathon, flat shaded 5K, and a dog-friendly Top Dog race through Griffith Park with medals, food trucks, and on-course water stations.
A 5 km Spartan obstacle race with 20 obstacles at Dodger Stadium on February 20, 2027, plus kids races and spectator access in Los Angeles.
A night trail relay in Griffith Park where teams of two alternate on a one mile loop, using headlamps and handing off a baton at a marked exchange.
March 2027
Muddy Dash Irvine on March 6, 2027 at Oak Canyon Park is a family friendly 5K mud run with obstacles, mud pits, slides, and a post race party.
A waterfront running festival in Long Beach on March 20, 2027 featuring races from 5k to a half marathon, a beer mile with four included beers and a nonprofit beer tasting alongside a one mile Beer Stroll.
Two days of trail runs and road and river bike rides at Griffith Park supporting Streets Are For Everyone's road safety work, with distances from 1K and family rides up to a half marathon and 100 mile ride, based at the Autry Museum.
Trail-running event in Griffith Park, Hollywood offering distances from 10K to 50 Mile on singletrack and fire road with detailed course maps and elevation.
April 2027
Experience the coastal trails of Crystal Cove State Park with a 6K or 10 mile trail run featuring canyon climbs and views of the Pacific Ocean.