Badger Cove Half Marathon

Alameda County, United States • 18 Apr 2026

Event Overview

The Badger Cove Half Marathon, 10K, and 5K is a trail race taking place in Livermore, California at Lake Del Valle Regional Park. The event is scheduled for April 18, 2026. The course runs through the "emerald hills" of the park.

Distances

  • Half Marathon
  • 10K
  • 5K

Participation

Walkers and hikers are welcome in addition to runners. The Half Marathon is noted as part of the Brazen Racing Ultra Half Series, which consists of "tougher" half marathon courses on trails with "serious ascents and descents" and are sometimes longer than the standard 13.1 miles.

Registration and Information

Registration is available online and by mail. Additional race details, including course information, start times, bib pickup, and frequently asked questions, are available on the organizer's website. Visit the organization's website for the most recent information.

Race information

Half Marathon
Half Marathon
10 km
10k
5 km
Visit the organization's website for the most recent information.
Trail runs nearby

General Information The Terrible, Horrible, No Good, Very Bad Day is an unofficial, non-organized trail run on March 7, 2026. It offers three distance options: 50K (32 miles) with approximately 10,900 feet of elevation gain. 18 Miler (30K)..

Experience the trails of Clayton at the Diablo Summit Challenge. Run a 22.5 km course starting at Mitchell Canyon Road and support local community initiatives through this outdoor adventure.

Run a flat and fast course on the historic Western Pacific Trail in Fremont. Choose from a half marathon, 10K, or 5K starting at Quarry Lakes. The event is open to runners and walkers of all levels.

The Diablo Trails Challenge offers four trail distances on Mount Diablo. A portion of entry fees supports the conservation work of Save Mount Diablo. The half marathon is part of the challenging Brazen Ultra Half Series.