
From the Organizer
This is the race your momma warned you about! The half marathon cannot be described as "flat and fast" or "good for beginners" or with any other nice phrase. In fact, the phrases most commonly used to describe it would be unprintable. But...once you finish the course, you will have experienced trails and seen views that few others ever will. And you will have a lifetime of bragging rights!
The 10K and 5K are not quite as intense as the half marathon, but don't worry, those runners will also be challenged with some hills and rewarded with some rarely-seen vistas.
If you are one of those brave souls ready to face either victory occasion and face this beast, come join us on September 19, 2026!
Events
Weather
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
80°
Typical Low
60°
Chance of Rain
4%
Based on US Climate Normals data from Mt Diablo Junction, 8 mi from the venue.
Host City
Nearest Airport
OAK
San Francisco Bay Oakland International Airport · 13 mi
Time Zone
Pacific Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Your Next Start Line
Every finish line starts with a single decision. Claim your spot at Rocky Ridge, put it on the calendar, and turn “someday” into a start date.
86
Days to train
Coming Up
Bad Bass
7 miles away
I Run They Learn
6 miles away
Trail Challenge - The Dublin 26
7 miles away
Beer City Half™ Bishop Ranch
2 miles away
From Endurance Grid
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 an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
Rocky Ridge
Sep 19, 2026