RD Trail Half Marathon

The Roosters Backyard Ultra will take place in San Diego on Saturday 1 November 2025.

Run through scenic Pine Creek Wilderness on a wide dirt fire road, climbing to a rewarding turnaround and returning with a fast descent. Choose the half marathon or 10K for a peaceful, well marked trail experience near Alpine, California.

Push your limits at the Sri Chinmoy 6 hour race around Miramar Reservoir, a scenic 5 mile loop with chip timing and a 70 runner field. Walkers welcome and all finishers receive a shirt, medal and certificate.

Run scenic single track at Black Mountain Ranch Park in the Turkey Burner, offering a half marathon, 10K, 5K and kids dash. Expect steep climbs on the technical half and a capped field for a friendly trail vibe.

Tackle Sycamore Canyon's rugged singletrack at the Dirty December Trail Run on Dec 21, 2025, with marathon, half, 10K and a repeating hill climb loop. Expect big climbs, festive costumes, a tech shirt and finisher awards.

Experience scenic looped trails at Goodman Ranch Sycamore Canyon Preserve near San Diego on Feb 28, 2026. Choose from a half marathon up to a 100K solo or 4 person relay for a rewarding day of trail running and camaraderie.