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Registration opens
August 1, 2021 8:16 PM
Registration is open until
October 18, 2021
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Athlete Guide

I'm extremely excited to welcome you back to the SOB 50 mile and 100k course! We're goingto have a great day on the trails!

There will be absolutely no pacers allowed. We are also proud to be a cup-less race.. Pleasebring your own cup.

Saturday, October 23, 2021
November 20, 2021

Malibu Creek State Park
1925 Las Virgenes Road
Calabasas, CA 91302
(818) 880-0367

Option 1

3 p.m. - 7:30 p.m.
Fleet Feet Running Store30125 Agoura Rd
Agora Hills, CA 91301

*If you pick up Friday, please check in again on race morning. We will have a separate table set up just for this, so you do not have to wait in line in the morning.

view map

If you get your bib on Friday please check in again on race morning. We will have a separate table set up to the right of registration just for this, so you do not have to wait in line in the morning.

Option 2

On race morning starting as early as 4:15am for 100K runners.
All other runners can check-in beginning at 5am.


from 5:15 on race morning

Download the 2021 Athlete Guide Here.

Course Aid Stations

15 hours

  • Bonsall Drive Mile 22.7 – Noon
  • Zuma Edison Ridge Motorway #2 Mile 31.1 – 2:45pm
  • Kanan Road #2 Mile 36.3 – 4:30pm

Course Aid Stations

17 hours

  • Bonsall Drive mile 22.7 – 11:00am
  • Zuma Edison Ridge Motorway #2 Mile 31.3 – 1:35pm
  • Kanan Road #2 Mil 36.3 – 3:00pm
  • Corral Canyon #2 Mile 42.9 – 4:30pm
  • Bulldog fire road Mile 49.5 – 6:00pm
  • Corral Canyon #3 Mile 56 – 8:30pm
  • Piuma Creek Crossing mile 60 – 9:30pm


Start time


Start time

Other Details


I will provide you all with turkey or veggie subs, and lots of yummy snacks. We are trying desperately to be a plastic free race so I will not have bottled water. Please fill up your handhelds or own bottle from my gallon jugs at the finish. Please bring a chair, and hangout. It will be lots of fun, and a beautiful day.


  1. NO LITTERING. 99% of you would never think of it, but our sport is growing, so it must be said.Do not ever drop any trash anywhere, but at an aid station. If trash is seen on the trail, I could lose my permits for future years!
  2. WE ARE A CUP-LESS RACE. We are trying to limit our single-use plastic waste. Please bring your own reusable cup. You can find them at running stores and REI.
  3. COVID PRECAUTIONS. Under no circumstances are runners to touch anything at the aid station tables. Volunteers will use tongs to hand out snacks, etc. Runners must open & close their own packs/handhelds and volunteers will fill with whatever liquids you need. Please use your common sense judgement when navigating the trails with other races & users.
  4. NO PACERS OR CREWS. Unfortunately the State Parks & NPS will not allow this due to traffic at the trailheads. So sorry. There are plenty of spots for drop bags, and we have the best volunteers on the planet. They will tend to your every need!
  5. MUSIC/HEADPHONES ARE OK. They must be turned down low. Please just be aware of other runners and trail users! Keep that music low.
  6. BE NICE. Be nice to each other, be nice to the volunteers, be nice to other trail users.
  7. HAVE FUN!

Travel & Lodging Information

Past Race Results

Complete 2019 Race Results

Complete 2018 Race Results

Complete 2016 Race Results

Complete 2015 Race Results

Congratulations to our winners and all the runners.
2015 Results

2015 Race Photos
Click here for race photos. Big thanks to Stepahnie Plomarity providing us with the photography.

Complete 2014 Race Results


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Safe Socially-Distant Racing

We make sure to provide safe and effective racing protocols ensure your health and safety.
Download our Covid-19 Guidelines

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Check out our other races