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Ahmanson Trails

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Tickets $25–$55

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  • Official booking partner
  • Best price guarantee
  • Free cancellation protection

Upper Las Virgenes Canyon is the San Fernando Valley's Best Kept Secret! This is a fun little romp that may include some mud and puddle hopping depending on the weather in April! Located at the west end of the San Fernando Valley, these beautiful trails take you high up on Lasky Mesa to the site of Hollywood filming of "Gone With The Wind" and "Django Unchained" before bringing you down into Las Virgenes Canyon where you will run through lush riparian foliage abundant with spring wildflowers. Yes, there are hills, but "what goes up also comes back down".

How to enter the Ahmanson Trails

  1. 12K Trails

    Run 12km
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  2. 6K Trails

    Run 6km
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  3. 18k Trails

    Run 18km
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Ahmanson Trails routes

On race day, the course is marked with surveyor ribbons and arrows on the ground. There is always a possibility that hikers may tamper with course markings and this cannot be controlled. Always keep your eyes alert to your whereabouts. It is unlike that you will get lost during the race but if you notice you are not seeing arrows or ribbons, simply back-track to the last mark you saw and follow the course markings from there.

Sweepers will head out from the starting line and will stay behind the last participant. Sweepers will pull ribbons and yes, they will actually carry brooms to sweep arrows. Because course markings may be removed From you, it is important that you always move forward on the race course, to avoid getting lost.

Event Details

What’s Included


    Men’s and Ladies’ Technical Running Shirts
    Custom Finisher Medals
    Custom Award to First Place Male & Female Overall
    Custom Award to First Place Male & Female finishers in five-year Age Divisions
    Water station at 3-ish mile and at mile 5.5-ish –  all runners should carry one bottle
    Computerized Chip Timing


    First Place Overall Male/Female in each race will receive an award and comp entry into the 2020 race
    Age Division Awards will be 1st/2nd/3rd Male/Female in five-year divisions

Raceday Logistics
  • Pre-registered runners may pick up their bib beginning at 6:00 a.m.
  • Please present a photo ID to claim your bib.

Due to the need to keep aid stations open and accessible to emergency responders, we do not permit any runner crews or spectators at our aid stations. The best place for family and friends is to wait for you at the finish line.


For volunteer information, email [email protected]


Q. Can I qualify for multiple awards?

A: Ahmanson has a non-duplication awards policy so a runner who finishes in the Top 3 Overall does not qualify to win an Age Division Award. Therefore, your finish in your particular age group category may have improved due to other runners in your age group finishing in overall positions. 

Q: Can I sign up on race day?

A: You may sign up on race morning beginning at 6:30a.m. however there is no guarantee of getting your shirt size preference. Race day entry cash only.

Q: When are race day instructions mailed to participants?

A: Once you register online, you will receive an immediate confirmation email. If you do not see the email, be sure to check your spam folder and reply to the email to put the address in your contacts list. About two weeks before the race, another email will arrive that will outline everything you need to know to help you with directions, parking, race details, awards ceremony, etc.

Q: Do I really need to carpool?

A: We highly recommend carpooling with other runners. Parking is extremely limited at our local trailheads and carpooling helps everyone get closer to the start line. We encourage you to use our FACEBOOK GROUP to arrange your meet ups to ride shares.

Q: Where do we park on race day?

A: There is no parking up at the trailhead. Please park curbside on Victory Blvd. On race day we have arranged for relaxed parking from the City so you may safely park the entire length of Victory Blvd. even where posted “no parking”. Since you are parking on a hill, please turn your front tires into the curb. Please be respectful of the residents in the area; this means “quiet” and no littering by your vehicle.

Q: Can I get a refund if I am unable to race?

A: Sorry, race entries are not refundable; not transferable to another person; not deferrable to another year.

Q: Can I give (or sell) my entry to another person to use in my place?

A: You may NOT give or sell your race bib to another person. This will get both runners disqualified from our races. The reason for this is that each registered runner’s personal contact information is printed on the race bib and in the event of an emergency where the runners cannot speak for himself/herself, the emergency contact info on the bib would not be correct to that person. Likewise, only runners who have signed the race liability waiver are permitted to participate.

Q: When & Where is Bib Pick Up?

A: Bib pick up is located at the trailhead beginning at 6:00 a.m. Please present photo ID when picking up your bib.

Q: What is the weather typically like on race day?

A: April is typically mild and sunny, in the 70s. Early heat waves are a rare possibility and temps could possibly get into the 90s. Rain is also possible and the event will go on, rain or shine.

Q: Do I need to wear trail shoes?

A: Trail shoes are desirable but are not mandatory for all Trail Run Events races.

Q: Can I use trekking poles?

A: You may use trekking poles to run or hike the race but poles will disqualify you from awards.

Q: Do I need to carry a bottle or hydration pack?

A: There is only one water stop on the race course so all runners are encourage to have one bottle or hydration pack to carry fluids between aid stations.

Q: Where are the water stops?

A: The 12K has one water stop at approx. 3-miles. The 6K has one water stop at approx. 2-1/2 miles.

Q: What is the elevation gain and loss for each of the races?

A: The Run has a total elevation change of about 1,257’ and has a maximum elevation of 1,388’.

Q: How accurate is the race mileage?

A: All race mileage(s) were established according to the Tom Harrison Trail Maps. These maps use mileage that is measured on foot using rolling devices. GPS devices show variable mileage ranges even among runners who stay together. The fault with these systems is that they are most accurate on flat courses that are in open spaces; in canyons, signals are often dropped and recovered during the runs and the device measures a straight line between the dropped points and the restored points. This means that GPS when used on trail always show mileage that is shorter than the actual mileage.

Ahmanson Trails weather forecast

Partly cloudy throughout the day.

Predicted highs
Predicted lows
IconLight breeze possible, up to 7mph

Meet the organizer

​Trail Run Events, LLC is home to Los Angeles County's premier trail races held in the pristine backcountry of the Santa Monica Mountains. Established in 2002 by Ultra Ladies Running Club, Trail Run Events offers beautiful and challenging trail runs for beginners and veterans alike. While you are enjoying the peaks and valleys, we are working behind the scenes to provide you the best in quality and safety in your trail running experience while preserving the integrity of our pristine backcountry trails.

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