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Set in Northern California, the Devil's Slide Run covers some of the most scenic parts of the Californian coastline. With 50K, 30K, half marathon, 11K and 4K route options there is something here for everyone. Come out and test yourself on the infamous Alta Vista Trail.

How to enter the Devil's Slide Run

  1. Icon

    Cruel 50K

    Run 50km
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  2. Icon

    Dirty 30K

    Run 30km
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  3. Icon

    Hella Hard Half Marathon

    Run 13.1mi
    Event passed
  4. Icon

    Evil Eleven

    Run 11km
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  5. Icon

    Fiery Four

    Run 4km
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Devil's Slide Run routes


Devil's Slide Run is comprised of five different race routes, all of varying difficulty and treacherous terrain. Set in Northern California some of these routes cover arguably one of the toughest single trails that the Bay Area has to offer - Alta Vista. The five course options are detailed below:

Cruel 50K: The first year for this feisty 50K this route is sure to test even the strongest of trail runners. The trail includes a whopping 7,000 feet of elevation gain and combines the Dirty 30 and Half Marathon routes just to test your mettle.

Dirty 30K: This isn't just any 30K, this coastal route covers some brutal terrain and includes a 'casual' 4,000+ feet of elevation gain. The best part - the Alta Vista Trail - a 1,200 foot climb over just one mile. There are four aid stations over the Dirty 30K course.

Hella Hard Half Marathon: A brutal 12.5 mile circuit covering 3,900 feet of elevation gain, including the infamous Alta Visa Trail. The course covers some of the most spectacular scenery in the Bay Area and gives incredible views of the San Mateo County Coast.

Evil Eleven: Despite being slightly easier on the legs, this 11K loop will still get your heart pumping and quads burning. The course is an out-and-back style route to the top of North Peak giving runners a panoramic view over the Pacific before turning around and charging back down. There are two aid stations along this route.

Fiery Four: An easier route designed for beginners and younger runners testing out their trail legs. The path takes runners through the San Pedro Valley County Park and past the seasonal Brooks Falls from the Brooks Creek Trail. Note: There are no aid stations along the 4K route.

There are cut-off times for the 4K, 11K, Half and 30K are all 3PM. The cut-off time for the 50K is 5 hours and 15 minutes at the 30K point and must be completed by 4:30PM.

Event Details

What’s Included
  • Pre-race coffee and snacks
  • Route maps and cue sheets
  • Support throughout the race
  • Well-stocked aid stations
  • Swag bag
  • Lunch after the event
Raceday Logistics


7:30AM - 30K and 50K Start

8:00AM - Half Marathon Start

8:30AM - 11K Start

9:00AM - 4K Start

Please arrive with plenty of time to get parked, registered and warmed up before you set out on your epic adventure.


The park offers some stunning scenery and makes for a great day out, so please encourage family and friends to get out and cheer you on. Or better yet - sign them up too.


If you would like to volunteer at this event please follow the link below:


Frequently Asked Questions

Can I bring my dog to the Devil's Slide Run?
Unfortunately due to the Park's regulations dogs are not allowed at this event.
Do I need to bring my own water and snacks for the Devil's Slide Run?
Yes, although there will be refreshments and snacks provided runners are encouraged to bring a water bottle or hydration pack with them especially if they are completing one of the longer trails.
Are there bathrooms at the Devil's Slide Run?
Yes, there are bathrooms with running water at the start/finish area but none along the course.
Can I wear headphones on the Devil's Slide Run?
Runners are strongly discouraged from wearing headphones on this route as it can cause safety issues.
Have a question? Get answers from our team.

Is your question about booking your place? See our Help Center

Devil's Slide Run weather forecast

Possible light rain in the morning and afternoon.

Predicted highs
Predicted lows
Icon60% chance of rain
IconLight breeze possible, up to 9mph

Meet the organizerIcon

Partners & Advocates for Remarkable Children & Adults has been enriching the lives of people with developmental disabilities and their families since 1952. Our programs create a feeling of extended family to help people live as independently as possible and enjoy all that life has to offer.

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