The 2017 Subaru ERock Sunrise Sunset is designed to offer recreational and competitive cyclists the opportunity to experience the thrill of competing in a challenging endurance race on a moderately technical off-road course.  Ride as a solo or put together your team of cycling amigos for a memorable day of racing, cameraderie and laughs.

Taking place again at the freshly cut trails of the Philip S Miller Park in Castle Rock, Colorado.  This amazing $30M facility offers the perfect endurance mountain bike venue less than a mile from the Subaru Elephant Rock start/finish.  The playful and flowy 6.5 mile course is cut into to the hills and drainages surrounding the park and offers ample viewing from the staging area for team members and spectators.

As part of the 30th ANNlVERSARY Subaru Elephant Rock Cycling Festival, Subaru ERock Sunrise Sunset offers cyclists the convenience of a Front Range endurance mountain bike race with support and amenities of one of the largest and highly regarded in cycling festivals in the country.  Formally known as 24 Hours of ERock, ERock Sunrise to Sunset evolved into it’s current 11-hour format in 2014. Started in 2006 with 46 teams, the event has grown to over 90 teams and solos in recent years.


The race will start at 7:30 am on Saturday, June 3 and will end at 6:30 pm that same evening. Registration will open at 6:15 am and close at 7:15 am, so we encourage all racers to arrive early.


We use disposable chips so no need for any deposits on chips. The chips are attached to the back of your bike number SO it’s very important that you do not fold or bend your bib-if the antennae is broken, the chip will not record your time.


The event will supply complimentary refreshments after the event to all REGISTERED RIDERS ONLY-please no family, support, etc.


Please keep in mind pets at events are becoming an increasing problem. We strongly urge you to leave your pet at home during this event, as not everyone is comfortable around animals. PLEASE INFORM YOUR FRIENDS & FAMILY! If you still choose to bring a pet, they are to be leashed at all time’s as this is state law. If ANY pet causes a problem on the course, the pet and its owner will be asked to leave for the duration of the event. Also, NO pets will be allowed in the finisher party area (food service). Thank you in advance for your consideration.

We look forward to everyone having a great time and appreciate your cooperation in making this a fun & safe event. Please thank the staff of the Town of Castle Rock for allowing us to use this fine facility.


Awards will be presented to the top 3 teams/solo’s in each category. This will include medals and prizes from our great sponsors. No awards will be mailed following the event, so please check the results to determine if you are a category winner. All awards will be presented shortly after the results are posted during the awards ceremony.

Random prize drawings will held during the awards ceremony, as everyone is a winner!!!


www.SkiPix.com will be taking pictures of racers along the course. Please visit their site after the event to view your pictures.


Saturday June 3, 2017
Phillip Miller Park, Castle Rock

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