About This Race

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.)

Course & Race Day Details

T-Shirt
Race Swag
8K, Half Marathon, 30K, Marathon, 50K: T-Shirt

Help Build Castro Valley's RaceMob Community

Your contributions help thousands of runners. Add what you know!

Write First Review

Share your experience

💡

Add Runner Tips

Course strategy & advice

💰

Share Discounts

Help runners save money

👥

Create a Team

Coordinate your crew

Coming Soon

Be the First! No content yet for this race.

Add photos, reviews, or tips to help other runners.

Race Photos

No Photos Yet

Be the first to share photos from this race!

Choose Your Distance

8K 8K
$60.00
Increases Apr 18
Register
Half Marathon Half Marathon
$70.00
Increases Apr 18
Register
30K 30K
$75.00
Increases Apr 18
Register
Marathon Marathon
$80.00
Increases Apr 18
Register
50K 50K
$90.00
Increases Apr 18
Register
Kid's Run (6yo & younger, 50yd dash) - Free!
Kids 6 yo & younger
$0.00
Increases Apr 24
Register
Coastal Testing
$0.00
Increases Apr 24
Register