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Arroyo Creek Half Marathon

Event details


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Take part in this mixed-distance event along the Arroyo Creek in Simi Valley. Perfect for runners of all stripes, the route will be shaded by overhanging trees and runners will behold epic views of the nearby Santa Susana Mountains. Come for the striking landscape or for unique finisher's medal.

How to enter the Arroyo Creek Half Marathon

  1. Half Marathon

    Run 13.1mi
    Event passed
  2. 10k

    Run 10km
    Event passed
  3. 5k

    Run 5km
    Event passed

Arroyo Creek Half Marathon routes

Half Marathon:

Start at Rancho Simi Park and Erringer. Head east on the Arroyo Bike path up to approx Angus Ave. The bike path will take a left turn towards L.A. Ave the turn around is at that point. We will have a turn around sign and aid station at that point. Head west to Madera, turn around and head east to Erringer, right on Erringer, right at the bike path towards the park, left into the park then back to the finish line.

5k course:

Start at Rancho Simi Park and Erringer. Head east on the Arroyo Bike path up to approx Darrah Ave, to the turn around point and head on back the way you came. 10k turn around flag is green and black and 16 ft tall so keep an eye out for it just past the 3 mile mark

10K course:

Start at Rancho Simi Park and Erringer. Head east on the Arroyo Bike path up to approx a quarter mile past sycamore, to the turn around point and head on back the way you came. The 5k turn around flag will be just past the wooden bridge. 16 feet tall yellow and black flag, keep an eye out for it.

Event Details

When you finish you will receive:

  • A bespoke finishers medal
  • A dry fit technical t-shirt (men's and women's designs available)
  • A branded Arroyo Creek water bottle
  • Goody bag holding all your swag, which can be reused!
  • Food will be available for all finishers


0600 - 0645: On the day race pack collection

0700: Half Marathon start

0715: 10K starts

0730: 5K starts

Make sure to arrive in plenty of time before the start of the race. Remember that parking and warming up take time, so we advise you to aim to arrive at least an hour before your race start time.

If you want to volunteer, you can sign up here:

There are a number of perks to volunteering, including: a volunteer events t-shirt, access to the volunteers only tent where complimentary food will be served, and free registration for a future event run by the race organizers. You can also have hours added to your community service certificate if requested.

Frequently Asked Questions

Can I walk the course? 
The race has a 4 hour cut-off for the half marathon, which equates to about 15minutes plus per mile meaning walkers, stroller moms, and walking clubs are all welcome. 
Is the course accurately measured and marked?
The course has been measured using a GPS watch and checked it three different times with three different runners. Additionally, there will be mile markers on the course.
When, where and what is Package pickup? 
Race pack collection will take place on Saturday June 27th between 1000 - 1400hrs at Fleet Fleet Westlake, 982 South Westlake Blvd, Thousand Oaks, CA 91362. Pack's can also be picked up on the day, between 0600 - 0645.
Can I register for the race at the packet pick-up location? 
You can register for the race at the package pick-up, but there is no Discounts Package pickup and we only accept cash or credit cards - no cheques. You can also register online or by sending in the registration form. Online registration closes August 12 at 10:00 am.
What kind of t-shirts will we be getting?
Tech shirts that are men’s specific and women’s specific sizes. Tech shirts are more fitted moisture wicking types of shirts.
When can I access results?
5k preliminary results will be posted at approx. 8:00 a.m. 10k preliminary results will be posted at approx. 9:00 a.m. Half Marathon – approx. 9:30 a.m.
Are there water stations/toilet facilities?
Porta potties are at race start and the following Erringer –        1/2 / 8 mile mark Sycamore –     1.5 /7.5 mile mark Sequoia-         3/6 mile mark
I don’t know the course should I just follow someone?
All athletes are required to know the entire course prior to stepping onto the starting line.  Please study the race course map on this site, and maybe drive the course if you have time prior to race day.

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We provide a fun way for people to stay focused on healthy living while having fun at the same time. We hope our events will ignite the spark of friendly competition that lives deep inside all of us. We will see you on the starting line!


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