HalfRuns
Lake Chabot Trail Run

Lake Chabot Trail Run

Lake Chabot Trail Run offers a scenic loop around a reservoir, ideal for new trail runners.

Race Date

Nov 7, 2026

Location

Castro Valley, CA

Solid Pick49

Quick facts

Date
Saturday, November 7, 2026
Location
Castro Valley, California
Distance
Half marathon (13.1 mi) + 4.8 Miles, 30K, 26.2 Miles, 50K, 3.1 Miles
Course
Loop Course
Terrain
Road
USATF certified
Not listed
Finishers on record
562

Highlights

Good For

Beginner Friendly

Atmosphere

Local CommunityWell Organized

Course

Fast FlatScenic Route

The Experience

The Lake Chabot Trail Run, held annually around the reservoir near Castro Valley, CA, provides a welcoming environment for runners of all levels. This event, now in its fourth year, offers a unique opportunity to explore the scenic beauty of Lake Chabot.

The course is designed as a loop, starting at the Marina and winding around the reservoir. While described as being around surrounding hills, the elevation gain and loss are minimal, making it an excellent choice for those new to trail running or seeking a forgiving race. Distances are accurately measured, ensuring a reliable race experience.

With a median field size of around 142 finishers and a growing trend, the race fosters a sense of community. Typically drawing participants from about four states, it’s a local gem that appeals to those looking for a straightforward, scenic run with a T-shirt as a giveaway.

Race-provided description

The course starts at the Marina and travels around the popular Lake Chabot reservoir and surrounding hills. Great course for first-time trail runners! (Distances are accurately measured using a Rolatape® surveyor's measuring wheel.)

Logistics

Race Day

Saturday, November 7, 2026

Start Time

8:30 AM

Giveaway

T-Shirt

Start Location

Lake Chabot Regional Park - Marina, Castro Valley, CA, 94546

Directions

Course Info

Course Type

Loop Course

Terrain

road

Scenery

Lake River, Park

Difficulty

Ultra-Flat

Net Drop/km

0 m (Flat)

Separation

0.0%

Also Offers

4.8 Miles30K26.2 Miles50K3.1 Miles

Quality Score

Solid Pick49
Methodology
Heritage8/20

4 years running

Size11/15

~142 finishers a year

Momentum5/5

growing or steady

Loyalty5/20

5% returning runners

Course & details5/15

3 timing sources

National draw4/10

runners from 4 states

Front-pack speed3/5

winner 1:21:57

Weather8/10

typical high 64°F

Race Day Weather

5-year historical avg

Start (Low)

50°

Afternoon (High)

64°

Pleasant conditions — light layers at start, comfortable by finish

0.1"

Precipitation

10 mph

Wind

76%

Humidity

Historical Finish Times

How 562 finishers actually crossed the line across 4 years.

Most recent

2025

Total finishers

562

Median time

2:37:27

Latest turnout

155

States

12

10%
25%
75%
90%
1:20p50 median ≈ 2:305:35

Turnout by year

20222025

'22'23'24'25
See full results

Hover the histogram to inspect specific finish times.

Race Photos

Frequently asked

When is the Lake Chabot Trail Run?

The Lake Chabot Trail Run is held on Saturday, November 7, 2026, starting at 8:30 AM.

Where does the Lake Chabot Trail Run take place?

It takes place in Castro Valley, California.

What distances does the Lake Chabot Trail Run offer?

The half marathon (13.1 miles), plus 4.8 Miles, 30K, 26.2 Miles, 50K, 3.1 Miles.

Is the Lake Chabot Trail Run course flat and good for a PR?

The Lake Chabot Trail Run is a ultra-flat, loop course course.

How many people run the Lake Chabot Trail Run?

HalfRuns has finish records for 562 runners who have completed the Lake Chabot Trail Run.

HalfRuns editorial — independent, no paid placement.

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