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Grizzly Peak Trail Run

Name: Grizzly Peak Trail Run
Start: 2026-05-09
End: 2026-05-09
Location: Berkeley

Berkeley, United States • 9 May 2026

Grizzly Peak Trail Run

The Grizzly Peak Trail Run takes place in Berkeley, California, within the Tilden Regional Park. Participants navigate courses that begin at Lake Anza and travel through the park located in the Berkeley hills. All race distances are measured using a Rolatape surveyor's measuring wheel to ensure accuracy.

The event offers a variety of trail race distances to accommodate different preferences:

50K
Marathon (26.2 Miles)
30K
Half Marathon (13.1 Miles)
10K
2 Miles
50 Yards (Kid's Run for ages 6 and younger)

The registration process remains open until early May for the primary trail distances, while the shorter distances allow for later entry. The event utilizes the natural landscape of the regional park, providing a specific trail-running environment in the East Bay area. Visit the organization's website for the most recent information.

United States California Berkeley

Race information

Registration

50 km

50k

26 mi

Marathon

30 km

30k

13 mi

Half Marathon

10 km

10k

Coastal Testing

Kid's Run (6yo & Younger, 50yd Dash)

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

Trail runs nearby

Saturday Jul 18

Muir Woods Mountain Challenge

Trail runs on Mt. Tam near Stinson Beach with 10K, Half, and 30K options across technical trails and major elevation changes; cupless aid stations, chip timing, and a 300-runner field.

Saturday Jul 25

Dirty Dozen Endurance Run

Pinole

Backyard Ultra

3 mi

Trail endurance races at Point Pinole Regional Shoreline offering 12 hour, 6 hour and 3 hour options for individuals or teams of two or three. The 3.37 mile loop runs mostly on dirt fire trails with shoreline views and eucalyptus groves.

Saturday Aug 1

Rodeo Valley Trail Run

A trail race in the Marin Headlands with 8K, half, 30K and 50K options along coastal single-track and fire roads, marked courses, cupless aid stations, and a 350 runner capacity.

Sunday Aug 2

Skyline 50k Endurance Run

Castro Valley

Half Marathon

50 km

Trail races of 50K and 21K in Castro Valley that start and finish at Lake Chabot Marina. Organized by Scena Performance, the event features community volunteer aid stations, finisher swag, GPX files, and UTMB indexing.