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4 AMAZING TRAIL RACES

Get inspired, thrilled, and crush some singletrack at our award-winning

Races

May 6, 2023

Castle Rock, CO

This spring Half Marathon, 10K and 5K race is held on the gorgeous, thrilling and rolling trails of Castle Rock’s Phillip S. Miller Park & Ridgeline Trail systems.  The singletrack course isn’t overly technical, but has enough rocks & roots to keep it fun for both first-time and veteran runners, and provides a nice launchpad for ultramarathoners gearing up for longer summer events.

Voted Best Kids Race in Competitor Magazine’s “Best Of” runner poll, 2016.

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June 3, 2023

Buffalo Creek, CO

The North Fork 50 Mile/50K takes place on the beautiful singletrack trails of the Buffalo Creek Recreation Area, about 50 miles southwest of Denver.  Starting at an elevation of 6,700 ft. above sea level, runners will enjoy a variety of terrain in the Pike National Forest, including shady evergreens, burn-scar from the 1996 Buffalo Creek fire, and blooming mountain wildflowers that explode with color!

This is a classic mountain ultra, run 100% on soft-surface trails (primarily singletrack with just a few miles of doubletrack/4WD road), with a max elevation of 8,500 ft.  50 Mile & 50K runners will climb a total of 6,600 ft. & 3,900 ft. respectively, and will be well supported by 9 aid stations throughout the race.

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June 30, 2023

Highlands Ranch, CO

Chase the Moon is a 12-hour solo ultramarathon and team relay, run overnight under the light of the full moon on the flowing and fun Highlands Ranch Backcountry singletrack trail system (we promise some incredible nighttime views of the metro area and front range).  Running from sunset to sunrise means cooler temps and the opportunity to see how many miles you can accumulate in 12 hours.  Solo runners who complete 100K will earn a coveted glow-in-dark buckle!

Voted Best Race Shirt in Competitor Magazine’s “Best Of” runner poll, 2014-2016.

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September 23-24, 2023

Bear Creek Lake Park, Lakewood, CO

The Bear Chase offers 5 distances to choose from over a 2-day endurance festival (100K, 50 Mile, 50K, Half Marathon, Baby Bear 10K).  An excellent race for first time trail and ultramarathoners, runners will experience a variety of challenging terrain and sweeping panoramic views throughout the race, including the downtown Denver skyline and historic Red Rocks Amphitheater.  The course is pretty fast (by trail/ultra standards), and not overly technical, but has lots of variety and challenge (and even a water crossing or three), on the singletrack trails to keep things interesting.

Voted Best Trail Race in Competitor Magazine’s “Best Of” runner poll, 2010-2016.

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Support the runners and help them achieve their goals.

Volunteer

Help The Runners With:

  • Packet pick-up
  • Start/finish line
  • Aid stations
  • Course marshals
  • Course marking & course sweep

Volunteers receive race swag and can enjoy food & drink at our finish line festivals.  People needing volunteer hours for other race entry requirements can request verification from the RD.

  • Rock Hawk

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  • North Fork

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  • Chase the Moon

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  • Bear Chase

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Training

By the pros. For beginners to experienced trail & ultra runners alike.

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Denver’s best group training program since 2003

  • Professional, experienced coaching support
  • Detailed, customized daily training plans
  • Saturday morning supported long group training runs
  • Multiple pace groups and aid stations every 2 miles
  • Midweek speed workouts
  • Member discounts with specialty run stores, partners, and wellness network
  • Fun runs & social events with fellow members

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Race Director

David Manthey
Coach / Owner:
Runners Edge of the Rockies
coach@runnersedgeoftherockies.com
303-320-EDGE (3343)

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