Flatrock

Dacula, United States • 17 Oct 2026

Flatrock : Dacula, Georgia

Flatrock is a trail running event held in Dacula, GA, at Harbins Park and the address 2995 Luke Edwards Rd. Races begin and end at the same location. Registration is capped and the event has sold out in recent years. Registration closes Sat, Oct 10 at 11:59 PM ET.

The event offers multiple distances on single track that is described as flowing and non technical, with short climbs that generally take a minute or two to ascend. The course uses loops and passes the start/finish multiple times. Aid stations are placed so they are accessible to family and friends and spectators can use park facilities including a playground.

Distances:

  • 50K - 2 x 13.2 loops and 1 x 5.2 mile loop
  • Half Marathon (13.1) - one loop
  • 50/50 Challenge - attempt 50 miles within the 50K 9 hour cutoff

Cutoffs: 50K 9 hours; 13.2 loop 5 hours; the 50/50 Challenge uses a strict 9 hour cutoff for 50 miles. Runners who elect the 50/50 option must commit before attempting the extra miles; failure to finish within the cutoff yields no credit for either distance. No one has officially completed the 50/50 Challenge to date.

Entrants receive a race item. Finishers of the 50/50 receive a challenge shirt and free entry next year. Top three men and women in each race receive recognition and free entry the following year. Refunds and entry credits are available under the stated policy and bib transfers are allowed. Visit the organization's website for the most recent information.

Race information

50 mi
50/50 Challenge
50 km
50k
13 mi
1/2 Marathon
Visit the organization's website for the most recent information.
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