Articles

Belgian Ultrarunner Karel Sabbe's Record-Breaking Pacific Crest Trail Run Showcased in New YouTube Documentary

Explore Karel Sabbe's record-breaking Pacific Crest Trail run in a riveting documentary. Jour..

Trail Running: How it Can Help Reduce Stress and Anxiety

Trail running is an effective way to reduce stress, anxiety, and improve physical and mental he..

Trail Running vs. Road Running: Which One Is Right For You?

When it comes to running, there are two primary options to choose from: trail running and road..

Fremont Canyon 28k Trail Run

Name: Fremont Canyon 28k Trail Run
Start: 2025-12-06
End: 2025-12-06
Location: Orange

Orange, United States • 6 Dec 2025

The Fremont Canyon 28k Trail Run is an exciting running event taking place in Irvine Regional Park, Orange, California. Scheduled for December 6, 2025, this challenging 28k (17.5 miles) course features fire roads with an elevation gain and loss of 2860 feet, making it suitable for experienced runners. Participants will find four aid stations along the route, offering electrolyte drinks, water, gels, and snacks.

The event promotes a cupless race format, encouraging runners to bring their own hydration solutions. Registration is available online until December 5, 2025, with no race day registration. Pets are not allowed on the course, but they can be present at the start/finish area. Visit the organization's website for the most recent information.

United States California Orange

Race information

Registration

28 km

2860 m+

28k (17.5 Miles)

Visit the organization's website for the most recent information.

Trail runs nearby

Saturday May 10

John Wayne Grit Series - Newport Coast

Laguna Beach - 17 mi from Orange

5 km

25 km

50 km

The John Wayne Grit Series - Newport Coast is a running event that features 50K, 25K, and 5K races set against the stunning backdrop of Crystal Cove State Park in Laguna Beach, California. Participants will navigate hill climbs and enjoy ocean views along dirt roads and single-track trails. The even..

Saturday May 10

Billy Goat Half Marathon Climb

Silverado - 12 mi from Orange

10 km

13 mi

The Billy Goat Half Marathon Climb is a challenging mountain race held in Temescal Valley, California, within the Cleveland National Forest. Scheduled for May 10, 2025, the event features a scenic course along Maple Springs Road to N. Main Divide, offering stunning views and a significant elevation..

Saturday May 17

O'Neill Park Trail Races

Rancho Santa Margarita - 18 mi from Orange

...

The O'Neill Park Trail Races is a scenic trail running event held in Trabuco Canyon, California, featuring various race distances including 10K, half-marathon, 30K, 50K, and marathon. The race showcases the stunning natural beauty of O'Neill Park, a treasured location in South Orange County. Partici..

Saturday May 24

Mt. Wilson Trail Race

Sierra Madre - 28 mi from Orange

0 km

8 mi

The Mt. Wilson Trail Race, one of California's oldest trail races, takes place in Sierra Madre, featuring an 8.6-mile course that ascends to Orchard Camp and back. Participants face an elevation gain of over 2,160 feet on a scenic and challenging route that has evolved due to natural changes over ti..

Saturday May 24

OC Trail Runners Group Run

Newport Coast - 13 mi from Orange

7 mi

The OC Trail Runners Group Run is a free, social trail running event held in Newport Coast, California. Taking place on May 3, 2025, the run is non-competitive and designed for runners of all levels to enjoy the outdoors and camaraderie. Participants will explore different routes each time, with the..

Saturday May 31

The Hills Are Alive 10K

Rolling Hills Estates - 28 mi from Orange

5 km

10 km

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.