
From the Organizer
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.)
Distances & Pricing
Race Location
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Coming Up
The Valley Race – 5k, 10k, and Half Marathon
The Big Run Presented by Brooks
Villanova Prep Track and Field Clinics
Splash Dash 5k (& Dry Run 5k) at Wild Rivers in Irvine
Frequently Asked Questions (FAQs)
SPASM Lake Chabot Trail Run
Apr 24, 2027