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© 2026 Trailrace.co. All rights reserved.

Built on bad decisions in Boulder, CO.

Rock Hawk 5K

Basic Listing
  1. Aravaipa Running
  2. 2026 Edition

A genuine trail 5K through Colorado's Castle Rock

Directions
DeadlineAugust 24, 2026

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All trail races in Colorado→
August 29, 2026
Saturday 8:00am MDT start
Castle Rock, CO
United States
3.1 miles
Loop Course
340 ft
Elevation Gain
Historical weather
52°F / 80°FLo/Hi Temp
49°F / 79°FFeels Like
32%Cloud Cover
0% (0.05 in)Precipitation
9 mphWind Speed
52%Humidity
6:25 AMSunrise
7:34 PMSunset
Open Registration
No lottery
No Service Requirement
Does not require trail or volunteer work
No Qualifier
No qualifier race required
Links
WebsiteInstagramFacebook
2008
Established
0:19 M / 0:25 W
Course Record

What Makes It Great

A 3.1-mile loop on Castle Rock's Miller Park singletrack, the Rock Hawk 5K offers a genuine trail experience with 342 feet of gain and open ridge views. An ideal introduction to trail running for beginners and first-timers in the Denver metro area.

Difficulty

Sun Exposure

Race Highlights

342 ft of gain
Short and scenic 3.1-mile loop sampling Castle Rock's signature singletrack
Big views, short distance
Open ridgeline sections with panoramic Douglas County views accessible to all runners
Family-friendly entry point
An ideal first trail race in the Denver metro area with full finish-line festival atmosphere

Finish Awards

Custom Finisher Award
All finishers receive a custom finisher award

Rock Hawk 5K

Castle Rock, CO, United StatesAugust 29, 2026

August 29, 2026
Course map for Rock Hawk 5K
DistDistance3.1 mi
GainElevation Gain340 ft
LimitCutoff3 h
Sun Exposure

Entry Timeline

Registration DeadlineAugust 24, 2026
Race DayAugust 29, 2026

Lottery

This event uses open registration - no lottery entry required.

Qualifier

This event does not require a qualifier for entry.

Service Requirement

This race does not have a service requirement for entry.
3.1 mi
Distance
Loop
Route
3h
Cutoff Time
6,483 ft
Average Elevation
340 ft
Total Ascent
340 ft
Total Descent
6,578 ft
High Point
6,391 ft
Low Point
Course map
Launch Course Explorer

Aid Stations

LocationMileElevation
Start
Start
0.06,421 ft
Finish
Finish
3.16,421 ft

Sign in to see cutoffs, crew access, drop bags, and services for every aid station.

Crew Access Points

Pacer Rules

No Pacers Allowed

Crew Rules

No Crew Allowed
Daylight
13h 9m
6:25 AM7:34 PM
80°F / 52°F
Feels like 79°F / 49°F
Temperature Hi/Lo
0% (0.05 in)
Precipitation
9 mph
Wind
52%
Humidity
32%
Cloud Cover
Based on historical averages for August 30

Late August in Castle Rock brings warm summer conditions. The 5K starts at 8 AM, when temperatures are typically in the mid-60s to low 70s°F. Most runners will finish well before afternoon thunderstorm hours. Expect sunshine and open trail exposure on the ridgeline singletrack.

Gear Rules

Required Gear

No required gear specified

Recommended Gear

No recommended gear specified

Videos & Race Reports

No videos or race reports available for this event yet.

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