Registration

A portion of all registration fees will go to Save Mount Diablo to fund land preservation and trails.

Entry Fees

There are three prices: early bird (before 2/7), regular (until 3/7) and late/race day entry (until 3/20). Those wishing to skip a shirt for this event may deduct $5.00 from their entry fee. We recommend saving money and entering early!

5K Entry Fee: $33 until 2/7, $38 until 3/7, $43 until 3/20

10K Entry Fee: $39 until 2/7, $44 until 3/7, $49 until 3/20

Half Marathon Entry Fee: $56 until 2/7, $61 until 3/7, $66 until 3/20

50K Entry Fee: $75 until 2/7, $85 until 3/7, $95 until 3/20

Please note: To be guaranteed your shirt size (or a technical shirt), you must register by March 7th! We will have plenty of extra shirts on race day, but it is always possible that we will run out of your size if we do not know what it is in advance!

Online Registration

Register online at:

Mail-in Registration

To avoid any online service fees for registration, just mail in your entry. Click here for a copy of the registration form and waiver.

Bib Pick-Up

Pre-race bib pick-up (along with race bags and t-shirts) will be at Forward Motion Sports in Danville on Thursday, March 18th and Friday, March 19th from 10:00am to 7:00pm. Location is 432 Hartz Ave in Danville. Directions can be found at their website here.

Race-Day Registration

If the race has not sold out before then, race day registration will be available. If the race has sold out, it will be announced on this page, the home page and our active.com registration page. If you don't see "sold out" posted clearly in all these locations, you can safely assume you will not be turned away on race day. If you have any questions, contact us.

Please note that for the 50K, race day registration will only be available at the 50K race start (at Round Valley Regional Preserve). Race day registration for the other distances will be available at Castle Rock Park.