APRIL 9, 2022


Outdoor recreation, for the purpose of facilitating physical and mental health through physically distanced outdoor exercise.


 Print out, fill out, sign and turn in to Planet Ultra at event check-in:

Covid Waiver
USAC Waiver

Print out and bring with you BOTH route sheets:

Part 1 – Mulholland Challenge 106 miles
Part 2 – DC 2nd Half

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.
This double is held in conjunction with Stage #1 of the King of the Mountains Century Challenge and is then brevet-style for the 2nd half
(fully supported when included in the CTC Stage Race, which is on hiatus).

Double riders will be chip timed and will receive KOM credit for the first 105 miles.

General Information and Ride Rules – Please Read

Click here to view the 2019 results.

Click here to see results from prior years.

When NOT in the stage race, this event is hosted quasi-brevet style: Only fully supported for KOM century option.

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 self-supported for the last 90+ miles.

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 host hotel 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 host hotel lobby and sign in with your finish time. If you don’t sign in, you won’t get credit for the ride.

2021 Entry Fees *:
Until March 27th: $115.
Late entry: March 28th until April 8th at noon: With online reservation, pay $130 at the door.

Please note: We are unable to provide a post-ride meal at this event. Please read our new registration and new cancellation policies.

Entry includes chip timing with overall and age category results for the KOM section (not timed in 2021); CTC Stage Race time for everyone who mass starts at the designated time (on hiatus in 2021); double century credit for both Planet Ultra Grand Slam and California Triple Crown; fully stocked checkpoints along the first 106 miles of the route with water and a great selection of food and snacks; roving SAG support; lunch at the halfway point.

* If you’re able to recruit an event volunteer, please email us before signing up and we’ll give you a coupon code to use during registration for an instant 50% off. For helping, the volunteer receives a credit for 50% off a future Planet Ultra single-day event. If the volunteer is a non-rider then YOU may use that credit. So you get two nice deals: An instant discount for promising to bring a volunteer, and 50% discount on your next event.

Use the SignUp bottom to register online and pay by credit card (which includes a small service fee). To pay by Venmo or Zelle, download and mail or email this form. Your mail-in form and check or volunteer voucher must be received no later than March 28th.
Please read our new cancellation policy before registering.
For the remainder of 2021, we are unable to accept volunteer coupons. All registered riders must pay the usual entry fee. 

Start / Finish Location:
Hampton Inn & Suites, 30255 Agoura Road in Agoura Hills, (818) 597-0333. Ask for the Planet Ultra/Mulholland Challenge group rate of $110 per night for double queen, $119 per night for studio king. Group block/rate expires March 31st.

If you’re not staying at the Hampton Inn, please do not park in any hotel spots. We’ve secured permission to use parking spaces in the office lot directly next door to the hotel at 30301 Agoura Rd. Please use only the spaces nearest the freeway at the back of the parking lot. Thank you for your cooperation and courtesy with the parking situation. If we don’t abide by the request of the office space owners/tenants, we’ll not be allowed to park there next year. 


Check In:
Friday from 6:30-8pm in back parking lot at Hampton Inn & Suites. Saturday from 5:15-6:45am. PLEASE, if you live within thirty minutes of the start, please make every effort to check-in on Friday night.

Start Times:
5am: Tourist riders only
6am:  15-18 hour riders
6:30am:  13-15 hour riders
7am:  Under 13 hours

All riders wishing to compete for top ranked KOM Century Challenge finishes start at 8am with the fast KOM riders. 

106-mile/Lunch Cut-Off:
You’ll be chip-timed for the Mulholland Challenge for KOM credit and must check-in and out at the Hampton Inn “lunch” stop to receive credit for the double.
6pm is the cut-off for riders leaving the KOM finish line/lunch stop and continuing on the course. No exceptions.

18 hours for CTC Stage Race participants.
20 hours from start to finish for “tourist” riders. You must sign-in at the hotel desk before midnight.

Routing and Navigation:
Planet Ultra route sheets include lots of information to help riders navigate the course: For example, 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 and in some areas traffic makes it unsafe. For these reasons we will no longer be course marking on any double century routes. 
We trust that as a seasoned endurance rider, ready and willing to ride 200 miles, you’re proficient at reading a route sheet and/or you’ve invested in a GPS based cycling computer into which you can upload the route (and we strongly advise that you use one). Your entry fee includes access to RideWithGPS downloads for your Garmin (or other GPS devise) or your smart phone.
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 1 week and 3 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 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 1st half of the route (same as the KOM distance for Mulholland Challenge). Click here for the 2nd half.

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 loop back to Agoura. Bust your quads on the short but steep climb up Westlake, then enjoy the silky smooth new pavement on Yerba Buena and Cotharin, before descending to the beach via our signature descent on 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 whole lot easier than the first half (at least after you’ve climbed Westlake for the 2nd time).  Enjoy the smooth, fast descent down Encinal, then the flatlands on the coast out towards Oxnard, around Camarillo and returning through Moorpark and Hidden Valley. 92 miles with less than 6’000′ climbing will feel like a piece of cake after your quad-busting morning.

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 Hampton Inn 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.

Personal SAG Vehicles:   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.