Hill Challenge 4 Mile

The The Hills Are Alive 10K will take place in Rolling Hills Estates on Saturday 31 May 2025. You can run between 5 and 10 kilometers.

The Malibu Canyon Trail Races, presented by Keira Henninger, take place in Malibu, California, within the scenic coastal Santa Monica Mountains. This challenging event offers multiple distances including 100K, 50-mile, 50K, 30K, and a half marathon, all run on single track and fire roads through rid..

The Griffith Park Trail Marathon Relay & 8K is a celebrated running event held at Park Center in Griffith Park, Los Angeles. Recognized by Runner’s World as one of the "10 Best Races You’ve Never Heard Of," it offers both a marathon relay for teams of up to five and an 8K race for solo runners. Part..

The Orange Curtain Endurance Run takes place in Cerritos, California, featuring distances of 100K, 50K, 30K, marathon, 24-hour, 12-hour, 10K, and 6-hour events. The course is a mostly flat 10 km out-and-back loop along the San Gabriel River bike path, combining asphalt and dirt surfaces, repeated mu..

The Into the Wild OC Trail Run takes place at Fremont Canyon via Irvine Regional Park in Orange, California. The event features a challenging 17-mile (27k) single-loop course primarily on fire roads, with an elevation gain and loss of 3,820 feet. Runners have the option to complete a shorter out-and..

The Red Rock Rumble is a challenging 10k trail race held in the stunning Red Rock Canyon of Topanga, California. Featuring steep climbs, rugged terrain, and breathtaking views of the Santa Monica Mountains and Pacific Ocean, the course includes 1,360 feet of vertical gain and loss, with a mix of fir..