Event Description

The race formerly known as the "East-West" trail race, has quickly become a runner favorite among Endurance Race Series front range events. The newly designed courses stay true to form, as they will keep the Heart Rate pumping while offering some of the best views in the front range.

To help keep the essence of this race, but allow the ERS to cut back on road crossing traffic, the newly named Mountain Ridge Half Marathon and 10K will start and finish once again from Mountain Ridge Middle School, and be entirely located within the community of Highlands Ranch, eliminating the East-West trail use all together. 

The new courses offer 100% dirt trail and single track courses , featuring manageable elevation gains.​

The time period for shirt purcases has passed, if you would still like to purchase a shirt, you may do so on race day 

*We have adjusted our prices, so that they do NOT include a race shirt. If you would like to take advantage of the shirt option, it is $5, and can be added in the Swag area of your registration.  For those runners adding the shirt option, we ask that you register at least 10 days prior to race day, to be guaranteed of your shirt order. If you are within the 10 day window, we will ask you to pick up your shirt after the race, from the sizes available. We will do our best to accommodate all requests.

Event details and schedule

Race Day  Schedule:
5:30am-  Race Day Registration Opens
7:00am-  Expo Opens
7:30am-  Half Marathon Starts
7:45am-  10k Starts
9:00am-   Food Tent Opens
9:45am-   Kids Race Starts
10:15am- 10k  Awards
10:30am- Half Marathon Awards
11:00am- Expo Closes