Flatrock

Dacula, United States • 11 Oct 2025

Event overview

Flatrock in Dacula, Georgia takes place on October 11, 2025 at Harbins Park / 2995 Luke Edwards Rd, Dacula, GA 30019. The event offers multiple trail distances and a combined challenge. Registration closes on October 5, 2025 at 11:59 PM ET. Registrations are capped; the event sold out in 2024.

Distances

  • 50K
  • 13.1 (half marathon)
  • 50/50 Challenge (50K plus additional miles aiming for 50 miles)

Course, cutoffs, and policies

The route uses non-technical single-track trails through wooded terrain with rolling hills and short climbs. The 50K is composed of two 13.2-mile loops and one 5.2-mile loop. The half marathon consists of one loop. Races begin and end at the same location and visit aid stations that are accessible to family and friends. The park has a playground and multiple passes by the start/finish area, which supports spectator access.

Time cutoffs: 50K - 9 hours; 13.2 - 5 hours; 50/50 Challenge - 9 hours (strict). For the 50/50 Challenge, runners may attempt the extra miles after completing the 50K but must finish 50 miles within the 50K 9-hour cutoff to receive credit. No one had completed the full 50-mile challenge prior to 2025. All entrants receive a race item; 50/50 finishers receive a challenge shirt. Top three men and women in each race receive recognition and free entry the following year. Refunds and transfers: full race credit until July 1; half-entry credit until September 1; bib transfers allowed. Visit the organization's website for the most recent information.

Race information

50 mi
50/50 Challenge
50 km
50k
13 mi
13.1 Miles
Visit the organization's website for the most recent information.
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