Sunday, April 8th

We're kicking off the year with our Annual Spring time race, Pasadena Trail Running Challenge. For 2018 we're offering (2) exciting routes, the modest yet challenging 5Mi Trail Run and a 10Mi Trail Challenge through remote trails in the nearby Angeles National Forest. No matter the distance, challenge yourself in the New Year with New Races & New Places!


Trail Race Series

The first of three in the 2018 Pasadena Trail Race Series! Kick off your spring training right, with us! Taking place at Hahamongna Watershed Park, we’re in for a great morning.


Race Details

Everything from early packet pick up and addresses to finish festival info can be found here. Answers to all your basic questions!


Runner Perks

The whole package! Check out all the race features and inclusions that come along with your race registration.


Course Maps

Distance, elevation profiles, terrain details and more can be found here.


Training Partners

Pasadena Running Company & Partners offer a variety of opportunites for you to train and prepare yourself for upcoming races.  


Trail Tips

New to trail running or looking to improve your skills? Check out these articles for tips on maximizing your trail running experience.



Didn't find what you're looking for? Additional details & info in our FAQs section.


Race Details

Pasadena Running Co. presents the 2018 Trail Running Challenge. The first in a series of (3) trail running events in our 2017 Race Series. Explore Pasadena's beautiful and vast connected trail system and challenge yourself on the varied terrain surrounding our  great city.  We'll be offering (2) distances options: 5MI Trail Challenge & 10MI Trail Challenge

Early Packet Pick UP

  • Time: Saturday, April 7th | 11:00A - 4:00P
  • Location: Run With Us Pasadena
  • Address: 235 N Lake Ave. Pasadena, CA
  • Required Items: ID/Driver License & Signed Waiver

Race Day Timeline

  • 7:00A - Registration/Packet Pick Up Opens
  • 7:45A - 10MI Challenge Start
  • 8:15A - 5MI Challenge Start
  • 9:00A - Post Race Festival Begins
  • 10:00A - Overall & A/G Awards
  • 11:30A - Event Conclusion

Race Location

Hahamongna Watershed Park  |  101 N Foothill Blvd. Pasadena, CA 91011

Hahamongna Watershed Park, nestled in the Foothills of Pasadena and unknown to many local residents offers a variety of interconnected trails, oak woodlands, picnic areas, equestrian riding & disc golf. Within the Angeles National Forest, the Watershed flood basin greatly contributes to the City of Pasadena's water conservation efforts.


Runner Perks

  • Pasadena Running Co. Race Shirt
  • 2018 Trail Challenge Commemorative Medal
  • Race Goodie Bag w/ Sponsor Swag & Special Offers
  • Electronic/Chip Timed Event w/ SmartResults
  • Warm-Up & Cool Down Yoga Sessions on Race Day
  • Exclusive Offers & Discounts to Run With Us Pasadena 
  • FREE Training Plans & Advice from Pasadena Pacers 
  • Professionally marked & supported race course
  • FREE Event Photos to download
  • Post-Race Fruit, Breads & Drinks from Pasadena Pacers

Course Maps

5MI Trail Challenge Course Review:

  • Distance: 5.25 Mi.
  • Elevation Gain: + 306 ft.
  • Trail Type: Mixed Use/Single Track
  • Featured Climbs: Devil's Gate Dam
  • Difficulty Rating: 3.5/10 - Beginner/Intermediate 

10MI Trail Challenge Course Review:

  • Distance: 10.12 Mi.
  • Elevation Gain: + 1575 ft.
  • Trail Type: Mixed Use/Single Track/ Rocky Terrain
  • Featured Climbs: El Prieto Canyon/Brown Mtn Rd.
  • Difficulty Rating: 6.5/10 - Intermediate/Expert

Training Partners

Pasadena Running Company & Partners offer a variety of opportunites for you to train and prepare yourself for upcoming races.   Here's a quick list of training runs, local run clubs and groups that can help you get ready for race day!

FREE PREVIEW RUN hosted by Run With Us Pasadena

Join other registrants in the months prior to race day for a preview the 5MI & 10MI routes for the upcoming Trail Running Challenge. We encourage runners new to trail running or participants looking to run the Half Marathon to join us and review the challenging terrain. 


Pasadena Running Company Partner, Run With Us Pasadena offers Weekly Monday Night Training Runs from their store on Lake Ave. Runners can select from (2) different distances each Monday night and often enjoy great raffles and post-run treats. Run With Us also offers rotating Sunday AM Trail Runs stopping at great locations throughout San Gabriel Valley. 


In addition to being a Pasadena Running Company Partner the Pasadena Pacers is a completely FREE Run Club offering multiple training runs weekly and provide Pacer Leaders offering expert training/advice for runners. Trail-loving Pacer Groups also have rotating trail runs in Griffith Park and Greater Pasadena Area. Check out the Pacer Nation site for additional details & schedules.


Join Pasadena's 1st social run club that meets every Tuesdays at 6pm at Dog Haus Biergarten (93 E. Green St.) in Old Town Pasadena! Run a 5K and meet new friends at happy hour, post-run. Membership is FREE and you earn incentives at various milestones when you continue to run with us! All levels welcome. Dog Haus Running Club is an affiliate of FFP Running Clubs, a 501c(3) non-profit organization dedicated to promoting a stronger culture of Fitness, Fun, and Philanthropy. 

Trail Running Guide

New to trail running? Check out this sweet article from Runners World with helpful tips & tricks for you. 

Looking to take your training and racing to the next level? Read the Expert Trail Guide article below for pro tips and training options.  


What if it rains?

The event will take place rain or shine! We do not offer refunds or deferrals due to weather. In case of flooding, routes may be altered. 

I registered, and can no longer attend, can I have a refund?

Unfortunately, there are no refunds offered due to injury, pregnancy, business trips, illnesses, or any other reason. However, we will miss you! To accommodate, we will allow you to transfer your bib to another participant. Transfers will not be accepted within 10 days of the event. 

Is the event timed?

Yes! Each event in the series is professionally timed by Clear Timing. Visit Pasadena Running Co. after the race for official results. 

I’m slow, do the races have time limits?

Each distance does have a time limit. However, the limits are all achievable by a standard walker. As long as you don’t stop to read a book under the shade of a tree, we will have a medal waiting for you at the finish line!

Race Photos?

Limited photos will be available post-race free of charge. Stay tuned for details, and be sure to wear your bib on the front of your shirt!

How will the course be marked?

Each distance will be marked on the groud with arrows made of flour! Additional signage will be posted throughout the courses. Before the run, visit the Registration Booth to see a sample of the course arrow. 

Are there aid stations on course?

Yes! Each distance will have at least one aid station. All participants running over 5 miles are required to carry hydration with them. Hydration options include handheld water bottles and hydration back packs. Check out the inventory at Run With Us!