Oakland Hills Trail Run
Oct 24Oakland, CA35K, Half Marathon +1
Also a half marathon, 97 mi from Heart of Cool Trail Run, registration open
Aid stations, cutoffs and pacing in one plan, with the timeline your crew follows. Crew invites and race-day updates come with a Race Pass.
Build my planAre you looking for a fun run for a great cause? If so, HoC 5k, 10k and half marathon is just what you are looking for! Net proceeds from this race support programs funded through Georgetown Divide Ready by 21, Inc. (GDRB21). It is a nonprofit organization that brings together committed partners who understand youth development and are moving forward to support the youth in our community. We work with many partners throughout the Georgetown Divide and El Dorado county. In addition, a percentage of the funds will also be used to scholarship a child to attend Camp Taylor, a camp specifically designed for youth with heart disease.
55 shirts on hand for registrants. Some sizes are sold out, but we still have some available. All half marathon participants receive a custom HoC pair of socks!
This is a family friendly event and we highly encourage you to bring the whole family! We offer a family discount package for immediate family members for the 5k and 10k distance! If you want to participate in the event without your child, take advantage of our $8 per child - child care for children ages 3 and up! We will have a post race pancake breakfast.
The Heart of Cool Trail Run traverses some of the best trails Cool, CA and the Sierra Foothills have to offer. Run on the same trails as many of the famous local (and world renowned) events such as Western States 100 Mile, Way too Cool 50k, Rio Del Lago 100 Mile, and many more!
To reduce waste and the possibility of littering our trails, this will be a cup free event. Be sure to bring a cup or water bottle that can be refilled at aid stations.
Packet and bib pick up will be on Race Day.
Registration will be available online until the start of each event!
We can always use volunteers for this event. If you are able to lend a hand during the race, or the day before, please click on the Volunteer tab.
Registration opens
Oct 13, 2025
Tier 1 ends
Jun 3, 2026
Tier 2 ends
Sep 18, 2026
Tier 3 ends
Oct 12, 2026
Registration closes
Oct 17, 2026
Race day
Oct 17, 2026
Tier 4 ends
Oct 17, 2026
Tier 5 ends
Oct 17, 2026
Trail Half Marathon
Tier 3, then $95 from Oct 12, 2026
$77
10k Run/Walk
Tier 3, then $55 from Oct 12, 2026
$50
5k Trail Run/Walk
Tier 3, then $49 from Oct 12, 2026
$45
Registration openings and major changes, like a new date or a cancellation.
Can't race, or need an entry? Post it here so nobody has to ask if it's still available.
Oct 24Oakland, CA35K, Half Marathon +1
Also a half marathon, 97 mi from Heart of Cool Trail Run, registration open
Oct 18Chico, CAHalf Marathon, 4 mi
Also a half marathon, 73 mi from Heart of Cool Trail Run, registration open
Oct 10Auburn, CA50K, 13 mi +1
Also a half marathon, 3 mi from Heart of Cool Trail Run, registration open
Oct 24Pilot Hill, CAHalf Marathon, 10K
Also a half marathon, 7 mi from Heart of Cool Trail Run, registration open
Straight-line distance
Oct 10Auburn, CA50K, 13 mi +1
Oct 11Susanville, CA50K, Marathon +2
Oct 11Nevada City, CAHalf Marathon, 10K +1
Oct 17Anza, CA100 mi, 24 hr +4
Oct 17Coloma, CAHalf Marathon, 15K +2
Oct 17San Jose, CAHalf Marathon, 10K
Oct 17Agua Dulce, CAHalf Marathon, 15K +2
Oct 17Julian, CA50K, Marathon +1
Oct 18Chico, CAHalf Marathon, 4 mi
Oct 24Pilot Hill, CAHalf Marathon, 10K
Oct 24Agoura, CA50K, Half Marathon +1
Oct 24Oakland, CA35K, Half Marathon +1
Apr 3, 2027Cool, CAHalf Marathon
Jun 5, 2027Cool, CA
Dec 12Cool, CA50K, Half Marathon
Mar 20, 2027Cool, CA50K, 25K +1
Nov 26Cool, CA10K, 5K
Jan 9, 2027Auburn, CA50K, 35K +2
Jul 10, 2027Auburn, CAHalf Marathon
Mar 27, 2027Auburn, CA35K, Half Marathon +2
Mar 13, 2027Auburn, CA12 mi, 6 mi
Apr 22, 2027Auburn, CA100 mi, 100K +2
Nov 14Auburn, CA50K, Half Marathon +2
Oct 7Carson City, NV100 mi, 1 mi +1
Oct 9Sparks, NV48 hr, 100 mi +5
Oct 10Foresthill, CA50 mi, 25 mi
Oct 10Granite Bay, CA11.45 mi, 6.6 mi
Oct 10Clayton, CA12 mi
Oct 10San Francisco, CAMarathon
Build your aid station plan, organize your crew, and dial in your nutrition strategy. Everything you need to finish strong.
Build my planAre you the race director for Heart of Cool Trail Run?
Claim this race to manage registration, volunteers, and race day.