Event Date:April 8, 2017

Mulholland Challenge Double

This epic double century traverses about 18,000 of vertical gain from Agoura Hills through Malibu to Camarillo and back via world famous Mulholland Highway and much more.
This route is for the adventurous cyclist who loves to climb and to see a lot of diverse terrain in the process.
A ride to remember! One of the toughest double century events in California.

Fully Supported – 17.5 hour time limit!

Click here to view the 2016 results

Click here to see results from prior years.

General Information and Ride Rules – Please Read!

Entry Fees*:
Earlybird until January 9: $105. January 10 – March 25: $120.  Thereafter, until Thursday at 5pm before the event, you may make an online reservation using the Register Now button and pay $140 at the door. Please note: We are unable to provide a post-ride meal at this event. Please read our registration and cancellation policies.
** If you’re planning to ride this event and know you can bring along someone to help out, you may email us in advance of signing up and we’ll give you a coupon code to use during registration for an instant 20% off.  By helping at the event, the volunteer you bring earns an entry to a future single day event for only $25.  If the volunteer is a non-rider then YOU can have the entry. So you get two nice deals: An instant discount for promising to bring a volunteer, and a $25 entry fee for your next event.


Click the Register Now button to register online and pay by credit card (processing fees apply).  You may also use the SignUp button to view the registered rider list. To pay by check, download and mail in this form. Your mail-in form and check must be received no later than March 25th.

Start / Finish Location:
NEW host hotel! Hampton Inn & Suites, 30255 Agoura Road in Agoura Hills, (818) 597-0333. Ask for the Planet Ultra group rate of $143 for standard room or $150 for king studio..

How to Get There:
Right off the 101 freeway. Click here for a map.


Check In:
Friday from 7:30-9pm at Hampton Inn & Suites. Saturday from 6am to 6:15am. PLEASE, if you live within thirty minutes of the start, please make every effort to check-in on Friday night.

Start Time:
“Mass” start at 6:30am. You’ll be chip-timed for the Mulholland Challenge 106 miles for KOM credit. The double century will require check-in at the finish line to receive your official time. 

Time Limit:
17.5 hours from start to finish when in the California Triple Crown Stage Race. Course closes at midnight.
20 hours from start to finish when held brevet-style. No exceptions.

Twilight begins 6:00am; Twilight ends 19:51. Sunrise is 6:25: Sunset is 19:25.

Lights and Gear Drop:
Given that the last portion of the route may be ridden brevet-style there will be no gear or lights drop for this event. Of course you may leave stuff at the Sheraton to pick up as you come through at mile 106. If there is any chance that you’ll be out past sunset, you MUST have both a headlight and a taillight attached to your bicycle, and you MUST wear a reflective ankle band on both legs. Please do not under-estimate the time you’ll need to complete this event. Come prepared with a very good light and batteries, plus at least one non-blinking taillight and lots of reflective gear.

It may be Dark and Foggy:
You may really, really regret it if you don’t have a good jacket or vest, long fingered gloves, and awesome lights for the last long ascent and descent. We can’t over-emphasize this enough. It could be very foggy and this will increase as it gets later into the night.

Routing and Navigation:
Planet Ultra route sheets include lots of information to help riders navigate. For example, we tell you if a turn is at a stop sign (SS), traffic light (TL) or T-intersection (T-int). We know that riders prefer course markings; however, many of the towns/cities/counties specifically forbid it. Further, your Planet Ultra staff  travels to the destination the day before the event to make everything happen; so we can’t mark the course in advance. If we have the manpower, we’ll do our best to mark the route (unless it’s forbidden by our permits, otherwise illegal, somewhere that locals would be really upset about it, or the turn is at a place that’s very obvious, like a big green highway sign). Our experience is that riders get lost whether the course is marked or not. Fewer riders get lost when they’re mindful of where they are on the route sheet. Please understand and take responsibility for navigation.

Route Sheets and GPS Files:
Route sheets are available in excel format to registered riders if requested via email between 2 weeks and 5 days before the event. We can’t guarantee that advance route sheets will be 100% accurate. Though not anticipated, last-minute routing changes may be required.

You may also download a map and GPS file from RideWithGPS.com. Please note that advance route sheets and gps files are provided as a courtesy and you use them at your own risk. Planet Ultra doesn’t guarantee accuracy. Please further note the following very important caveats:

  1. The ROUTE SHEET is gospel. Whenever the route sheet and the GPS unit disagree, the route sheet is correct.
  2. A GPS can (and will) route a rider over a cliff. There’s really no substitute for the human brain, so please use yours.
  3. Never depend solely on a GPS. Bring your route sheet, and know how to follow it.
  4. GPS batteries on many “bicycle” GPS units may not last for a century. Make sure you’ve arranged for additional power.
  5. Click here for the RideWithGPS.com map. You may download a GPS file from this page.

Ride Description:

Be ready for a course that is as scenic as it is challenging. Spend the day riding the best of Southern California’s roads less traveled. Ride up, over, and along mountain peaks and ridges, and through a multitude of canyons and countrysides. Basically, this route is for the rider who loves to climb and to see a lot of diverse terrain in the process. It is one of the toughest double century events in California (#3 with respect to accumulated elevation gain). Bring gears! Some of the roads have steep sustained climbs of 12-14% with pitches up to 16%. Unless you’re a super strong climber, we suggest a triple crank, or at least a 30 cog in the back.

Your day starts with Stage #1 of the King of the Mountains Century Challenge:  You’ll head across Mulholland into the Valley and then hang a right on Topanga. After a fairly gentle climb and a super fast descent, the real climbing begins as you head up and over Old Topanga. Then you’ll tackle Stunt, zip down Piuma back to Mulholland; and take that all the way to the coast. A short ride on PCH takes you to Yerba Buena and Cotharin, before hitting Ventura County and the beach via Deer Creek. After an easy, flat cruise back south on PCH, you’ll climb up Decker Canyon hang a right on Lechusa and climb Encinal Canyon back to Mulholland. From there it’s mostly, but not all, down hill back to Agoura via Cornell. 106 amazing miles with 12,700 feet of climbing.

The second half is a loop to the coast via Westlake and Latigo and back through Camarillo and Moorpark; with about 5500′ climbing.

Personal SAG Vehicles:   When held brevet-style, riders may have private SAG beginning at mile 106 until the end.  Private SAG may provide leapfrog support onlyAbsolutely NO FOLLOWING. If your personal SAG is on the course before mile 106, you’ll be DQ’d without a warning. The definition of personal SAG is any vehicle (motor or otherwise), anywhere on the route, operated by someone other than Planet Ultra staff, that is providing any type of aid, assistance, or motivation to any rider, or taking photographs, or simply out cheering. If you’re bringing someone with you who wants to be out on the course before mile 106, please have them contact us and join our volunteer staff.

Volunteers:   We always need volunteers! Click here for info about available positions. 



This is one of the toughest doubles! Before you sign up, please consider that to be successful at this event you should have completed one or more of the toughest doubles (Terrible Two, Devil Mountain, Heartbreak) well within their respective time limits, and be willing and able to ride semi-supported for the last 90+ miles unless the event is part of the California Triple Crown Stage Race.

How this Ride Works When Quasi-Brevet-Style – 20 hour time limit:
This double is held in conjunction with the Mulholland Challenge. The first 106 miles are the same; so you may qualify for the King of the Mountains Century Challenge if you wish.  The second half has less climbing, looping to the coast via Latigo Canyon and back via Camarillo and Moorpark.  You may, and we do encourage you to, have private SAG meet you at the Sheraton after 106 miles; and provide leap-frog style support for the duration of the event.  There may not be event SAG drivers on the second half of the route; so you must be willing and able to finish on your own. There will be some “proof” required that you completed every mile of the second half, which will be announced at the ride. When you finish, you’ll return to the Sheraton lobby and sign in with your finish time. If you don’t sign in, you won’t get credit for the ride. In the event the Mulholland Double is included in the California Triple Crown Stage Race, the ride will be once again fully supported with all aid stations available the duration of the event (which is 17.5 hours when fully supported).