Gnar Runners events are designed to promote enthusiasm and passion for the sport of mountain, trail and ultrarunning in and around the beautiful mountains of Northern Colorado.
Whether you are leading the charge at the front of the field, playing host in the middle of the pack or chasing course cut-offs, our dirt-based races are geared towards helping you achieve your off-road running goals in stunning outdoor environments.
While we seek to create challenging courses on as much gnar-filled terrain as we can reasonably find, we also guarantee impeccably marked courses, bountiful aid stations and a post-race atmosphere to remember.
The 12th running of the Blue Sky Trail Marathon is this Saturday. We hope that your training has been on point and that you’re ready for a strong run.
All information relevant to the event is available from the race website. In addition, we’d like to bring your attention to a few key details.
Registration is still open! As of right now, a couple dozen spots are available. If those are not claimed by the close of online registration tonight, we will offer late registration at Packet Pickup.
The weather forecast through the rest of the week and into Saturday looks fantastic with daytime highs in the low 60s. However be aware that the Blue Sky course is very exposed over the last 18 miles and even in the low 60s the trail can get toasty under full sun, so please plan accordingly if we get warmer than predicted temperatures.
An optional packet pickup will be available on Friday from 4pm to 7pm at Altitude Running. Altitude Running is located at 150 E Harmony Rd on the northeast corner of College and Harmony.
Packet and bib pickup will also be available on race morning at the Blue Sky trailhead from 5:30am to 6:45am.
Limited parking is available at the Blue Sky trailhead by the race start for carpools of two or more *runners* (55 spaces, first come, first serve) and additional parking will be at the Inlet Bay Marina off Shoreline Drive, 3/4 of a mile from the start. If you are driving solo and parking in the Marina, please give yourself adequate time to get from your car to the start. Race day parking passes will be handed out when you arrive at the Marina.
Runner Drop Off will be available at the pullout on Shoreline Drive by the fire station around the corner from the Blue Sky Trailhead.
**Parking is not allowed anywhere on 38E, along Shoreline Drive, or on any connecting residential street.**
We will have a start/finish gear drop area if you want to avoid heading back to your car before the race starts – or think you might need or want to drop or pickup something when coming back through at mile 9.2 of the race after the Horsetooth loop. Bags should be labeled (we’ll have duct tape and sharpies at the start). There are no other drop bag locations on course.
Aid stations will be checking bib numbers. Please make sure your bib is visible from the front. It would also be helpful if you could call out your number as you leave and/or enter the aid station. Bib numbers are being checked for both aid station split data and, more importantly, runner safety.
This is a cup-less race. We ask that all runners carry a water bottle or hydration pack for refills at the aid stations. Be sure you have enough carrying capacity so you can hydrate adequately between aid stations.
One of several well stocked aid stations.
The four aid stations (six total, as the two Indian Summer aid stations are visited twice) will have water, VFuel sports drink, in addition to assorted snacks and fruit. The first Towers aid station will have water and Vfuel drink only.
We will have VFuel bulk gel at the start of the race and at the Blue Sky aid station at mile 9.2. Bring your own flask to fill if you would like to use gel from the aid stations during the race – packets will not be available.
The South Hunter turnaround is a checkpoint only – no water or aid. A volunteer will be checking bib numbers as runners come through to make sure the loop is completed, to capture split data and also for runner safety.
Please pocket any trash and dispose of it at aid stations or at the start/finish.
Dogs are welcome on leash with family and friends at the start/finish area, but we ask that you not run with your dog during the race.
Trails are open to the public. Watch for bikers and yield to horses.
We’ll be offering a full post-race BBQ with bratwurst and vegan burgers, and soup from Boulder Organic (both gluten free and vegan options). Also look for Mary’s Mountain Cookies and New Belgium beer. If you want a beer after your run, please remember to bring your id.
The BBQ is free to all participants. If you did not purchase extra tickets with your registration, additional meals can be purchased at the BBQ for family and friends for a $10 donation to our race beneficiaries Athletes in Tandem.
In addition to finisher awards, we have overall and age group awards, with Altitude Running gift cards for award winners, Salomon running packs for overall winners and a smorgasbord of sponsor gear to give away in the post-awards raffle. We will also be recognizing the 2019 Gnar Slam finishers.
PT work will be available after the race courtesy of race sponsors Colorado in Motion, with massage offered by Diane Bergstedt and foot care advice from UltraPodiatrist Dr. Mike. We will also have Salomon Running on hand showcasing their latest trail lineup, with an opportunity to enter a raffle for a free pair of shoes.
Thank you as always to our fabulous race sponsors in helping us make this event possible:
Thank you also to all our wonderful product supporters. Please consider supporting these businesses that support our races.
If you have questions that are not answered here or on the website, then please email (racedirector@gnarrunners.com). We will do our level best to respond in a timely manner.
We sincerely look forward to seeing you all on Saturday morning!
Gnar Runners events are designed to promote enthusiasm and passion for the sport of mountain, trail and ultrarunning in and around the beautiful mountains of Northern Colorado. 
