Participant Instructions


In an effort to ease congestion and improve the flow of runners once you reach the single track trails, the race will feature wave starts because there are a lot of you!!

6:15am at Northside Elementary School, 860 Cave Valley Rd., Cool, CA.

• 7:30 am – Long Course (Road pace under 9:00 min./mile)
• 7:40 am – Long Course (Road pace over 9:00 min./mile)
• 8:15 am – Short Course (Road pace under 9:00 min./mile)
• 8:25 am – Short Course (Road pace over 9:00 min./mile)

Race Rules
• No leg or foot casts
• No strollers
• No dogs
• Please NO Headphones.  No headphones will be permitted by runners/walkers participating at Dirty Secret. No exceptions.

Participants wearing headphones are less aware of their surroundings and may not be aware of (1) starting line announcements; (2) instructions on the course from race management and volunteers  (3) warnings that participants have strayed off course; (4) friendly warnings from another participant that is approaching to pass; and (5) finish line/chute announcements;   Basically, when you can’t hear what is going on around you, you lose one of your most valuable senses—at a time when you need all of your senses working. Even if a participant is cognizant or their surroundings and “wants” to be aware, the inability to hear clearly is a significant risk factor that cannot be ignored. Event personnel must be able to communicate with participants before, during and after the race

Stream crossings, foot bridges, and baby heads what do they all have on common? You will find them all out on course at the Dirty Secret Trail Run. OK we don’t mean literally seeing baby heads, but you will come across Baby Head Alley named after the rocks that line the trail that look like (yes you guessed it) baby heads. Knickerbocker Creek crossing is something that can’t be missed just after 3 miles on both courses and one of the highlights of the run. Both races start from Northside Elementary School in Cool, CA. Be one of the first to explore this all new course complete with butterflies, newts, rolling hills, and plenty of dirt. This course is perfect for the first time trail runner while also still challenging enough for the trail vets. The long course is 10.3 miles and the short course is 5.8 miles. Courses and distances are subject to change.

Aids Stations (feature water and nuun electrolyte replacement drink)
Mile 1.34
Mile 3.48
Mile 7.78 (long course only)

*You should carry your own gels.

Course Maps


Awards will be given to the overall male and female runners of the Long Course and Short Course races.

Any age group awards that haven’t been claimed can be picked up at Fleet Feet Sports (2311 J St., Sacramento)

LONG COURSE: Awards to the top three male and female finishers in each age division:
19-under, 20-29, 30-39, 40-49, 50-59, 60-69, 70-over.

SHORT COURSE: Awards to the top three male and female finishers in each age division:
19-under, 20-29, 30-39, 40-49, 50-59, 60-69, 70-over.


Entry fees are non-refundable & entries are non-transferable. NO EXCEPTIONS.
Once we receive and accept your entry, you will not receive a refund if you
cannot participate, you may not give or sell your number to anyone else,
and you may not transfer your entry fee to future races.