Races Half marathon · Estes Park, USA
Rocky Mountain Half Marathon
Rocky Mountain Half Marathon is a rolling half marathon in Estes Park, USA, held each August. A loop from Stanley Park that climbs Dry Gulch Road early, rolls through Devil's Gulch, runs flatter miles through town and finishes around Lake Estes. Total climb is about 240 m. August mornings in Estes Park start cool and dry at around 5 to 10°C, warming to the low 20s C, and afternoon thunderstorms are common. With Rocky Mountain Half Marathon's constant undulation, pace by effort rather than the watch: even effort beats even splits here.
Page rebuilt 2026-11-14 · race facts not independently verified — confirm dates and entries on the official race site
When
August
every year
Course
rolling
Half marathon
Conditions
August mornings in Estes Park start cool and dry at around 5 to 10°C, warming to the low 20s C, and afternoon thunderstorms are common.
Racing this course well
A loop from Stanley Park that climbs Dry Gulch Road early, rolls through Devil's Gulch, runs flatter miles through town and finishes around Lake Estes. Total climb is about 240 m.
With Rocky Mountain Half Marathon's constant undulation, pace by effort rather than the watch: even effort beats even splits here.
Getting a place
Official Rocky Mountain Half Marathon site →Checked November 2026
Race day
- Start time
- 06:00
- Time limit
- 4 hours
- Also on the day
- 5k
The course in numbers
The early climb up Dry Gulch Road and the rolling hills in Devil's Gulch decide the race before the flatter miles into town.
- Layout
- Loop
- Surface
- Paved roads and trails, on an open course shared with traffic
- Total climb
- 240 m (790 ft)
- Total descent
- 235 m (770 ft)
Worth knowing
- The course is open to traffic, so runners keep to the side facing oncoming vehicles.
- Runners can enter the Friday evening 5K and the Saturday half marathon on one bib as the Elk Double.
- Past races have been delayed for mountain weather.
Pick your goal for Estes Park
Pace charts, weekly structure and timelines for the most common half marathon goals:
We don’t hold a confirmed date for this edition, so any countdown comes from the date you enter here.
Build your training around Rocky Mountain Half Marathon.
RunV works backwards from race day to today. Your plan adapts when life interrupts, and you approve every change. It does not adapt to this specific course — the pacing guidance above is where the course knowledge is.
Everything above stays free and complete — this is an optional next step, not a paywall.
Asked often
- When is the Rocky Mountain Half Marathon?
- It is held each August in Estes Park, USA. Check the official Rocky Mountain Half Marathon site for the exact date and entry windows.
- Is the Rocky Mountain Half Marathon course flat?
- A loop from Stanley Park that climbs Dry Gulch Road early, rolls through Devil's Gulch, runs flatter miles through town and finishes around Lake Estes. Total climb is about 240 m.
- How should I train for the Rocky Mountain Half Marathon?
- Train specifically for Estes Park — terrain, conditions, goal pace — and let the plan flex around real life. With RunV Premium you can adapt your plan to fit your week.
Not sure what to target? Predict your half marathon time from a recent race →
More half marathon races
Supplements research for this distance
Build for Estes Park — around your actual life
RunV engineers your block backwards from race day in August — and adapts it when training doesn't go to script. You approve every change.
