Endurance Races in Beautiful Places



Mountain RATS
Eagle, CO
September TBA, 2018
Click for 2017 Racer Manual

Come celebrate fall in the mountains with a trail running challenge! An exciting day of festival fun and adventure on the trails near Eagle, Colorado. With the start/finish line right in the heart of Eagle’s new fall festival, Septemberfest, friends and family can enjoy themselves while you push yourself in the rugged mountain race. After testing yourself on the trails relax with a beer, hot meal, or just sit and listen to live music. Racers can choose from a Half Marathon, Trail Marathon or 50K.

The host hotel for the weekend will be the AmericInn in Eagle, be sure to mention the race to receive a special rate. Our packet pickup and start/finish area will be well provided for by our awesome sponsors – Color Coffee Roasters and Bonfire Brewing.


Click for 2017 Racer Manual

In order to be environmentally friendly and cut down on the amount of trash we produce, we will not have cups at the aid stations. So, please carry a water bottle or a collapsible cup on the course.


Finisher’s mementos will be handed to you as you cross the finish line and awards will be given out at ceremonies in the heart of the Septemberfest at specified times (see schedule for times). Don’t miss out on a chance to win raffle prizes and socialize with other runners.

Customized cowbell awards will be given to the top three male and female finishers in each race in each of the following age groups:

under 20





60 and over


Racers will receive customized dog tag finisher’s awards as they cross the finish line. Placer’s awards will be distributed at the awards ceremony Saturday night. Awards and mementos will not be mailed after the event.









All registered racers will get a free beer from Bonfire Brewery and entry into Septemberfest.


This year’s host hotel will be the AmericInn in Eagle, CO.
Address: 85 Pond Rd, Eagle, CO 81631
Phone: (970) 328-5155
Tell them you are with the Mountain RATS race for a discount.

Start/Finish Area and Parking

Color Coffee Roasters (717 Sylvan Lake Rd, Eagle, CO 81631) will host the packet pick-up. The start/finish line will be on the grass next to the store in the heart of the Septemberfest celebration. Your race number and packet will also be available at this location Friday night and Saturday morning.
Parking will be on the streets near the start/finish and surrounding the Septemberfest.

Weather in Eagle can vary. The averages for late September are a low of 38F and a high of 72F degrees.

There will be emergency vehicles throughout the event and all necessary materials to nurse any bumps, cuts, bruises, or blisters will be at the start/finish area. In addition, a certified Emergency Medical Technician will be in attendance. Aid stations will NOT have aspirin, ibuprofen or other NSAIDs.

Local Laws
Federal, State, and County laws and ordinances must be followed at all times.

Staying on Course
Racers must stay on the designated course. Any racer that goes off the designated course (i.e. shortcutting) will result in a disqualification.

Unforeseeable Circumstances
In the case of unforeseeable circumstances due to weather or other extenuating circumstances that prevents the safe continuation of the race, race officials may end the race at any given time. This rule will be implemented in the most extreme cases for the safety of the runners or officials.


The Mountain RATS courses will be challenging, beautiful, and almost all dirt.

32 miles with ~6000′ of climbing
Spring Creek (13 miles) Cut-off 11:40pm
School House (20.5 miles) Cut-off 2:00pm- If 50K racers don’t leave the aid station by 2:00pm they will not be allowed to do the additional loop.
Finish Cut-off 5:30pm

Click here for 50K Strava Link

26.2 miles with ~5000′ of climbing
Spring Creek (17 miles) Cut-off 2:30pm
Easy Rider (21.5 miles) Cut-off 3:30pm
Finish Cut-off 5:30pm

Click for Marathon Strava Link


Printable Marathon Map

Heavy Half
14.4 miles with ~2500′ of climbing
There are no cut-offs for the Heavy Half Marathon!

Click here for Half Marathon Strava Link


Printable Heavy Half Map

Aid Stations
We will have nine aid stations located throughout the 50K course, six for the marathon and four for the half (at approximately five-mile intervals).
Aid Stations will have: gels, potato chips, peanut butter and jelly rolls, chocolate, bananas, ice water and Tailwind Endurance Fuel hydration.
For environmental reasons cups will not be provided at the aid stations.
Aid stations will NOT have aspirin, ibuprofen or other NSAIDs.




5:00-7:00 pm– Race day registration and packet pick up at Color Coffee Roasters


6:00-7:45 am– Race day registration and packet pick-up at start line (Color Coffee Roasters)

7:30 am– Marathon/50K race start

8:00 am– Half Marathon start

12:00 pm– Half Marathon awards and raffle prizes at Color Coffee Roasters

5:30 pm– Marathon/50K cut-off

6:00 pm– Marathon/50K awards and raffle prizes at Color Coffee Roasters


Cost per person:

Early (until April 1st)

Half Marathon – $60

Trail Marathon – $80

50K – $85

Standard (until July 1st)

Half Marathon – $70

Trail marathon – $90

50K – $95

Late (until September 20th)

Half Marathon – $80

Trail Marathon – $100

50K – $105

Race Weekend  

Half Marathon – $90

Trail Marathon – $110

50K – $115

Entry fees include: place winner awards, shirts (or other race memento), aid station goodies, a finisher’s memento and post-race refreshments.  Entry fee is non-refundable and nontransferable. All or part of this operation is conducted on Public Lands under special permit from the U.S. Bureau of Land Management.




2017 Results

Course Records:
50K Male
2017 Andrew Vargo 6:15:00

50K Female
2017 Lauren Kosman 7:28:58

Marathon Male
2017 Keegan Winkeller 5:12:46

Marathon Female
2017 Mriah Blair 4:27:06

Heavy Half Male:
2017 Geoff Grimmer 2:05:31

Heavy Half Female:
2017 Kim Dobson 2:05:14
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