Secret City Half Marathon
Always double-check with the organizer's website! This page may contain affiliate links.
Secret City Half Marathon and 5K : Event overview
The Secret City Half Marathon and 5K takes place in Oak Ridge, Tennessee. The in-person races are scheduled for November 15, 2025; virtual options run November 15-29, 2025. The event page lists the following entries as available for the event:
- Half Marathon
- 5K
- Virtual Half Marathon
- Virtual 5K
All event entries on the page are marked as full. The virtual events have a completion window of November 15-29 and virtual participants receive race items by mail after November 29. Packet pick-up dates are listed: Thursday, November 13 (at the Oak Ridge Chamber of Commerce, 1400 Oak Ridge Turnpike) and on race morning on site.
Courses and additional details
Both races start and finish at the Melton Lake Park peninsula, 697 Melton Lake Dr., Oak Ridge, TN. The half marathon route follows Melton Lake, passes an operational quarry, continues on a tree-lined private road, goes through Oak Ridge, and finishes along the water's edge back at the peninsula. The half marathon is USATF certified, certification number TN15066MS. The 5K follows the lake edge to Elza Gate Park and doubles back along the walking trail; its USATF certification number is TN15077MS. The event lists ADFAC as a benefiting organization. Age minimums on the event page are 12+ for the half marathon and 8+ for the 5K. Visit the organization's website for the most recent information.
