Secret City Half Marathon
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Secret City Half Marathon and 5K
The Secret City Half Marathon and 5K take place in Oak Ridge, Tennessee, with the race location at Melton Lake Park peninsula, 697 Melton Lake Drive, Oak Ridge, TN 37830. The event offers in-person and virtual options on and around November 14, 2026; virtual participants may complete their runs from November 14 to November 28, 2026.
Event distances and options:
- Half Marathon: starts and finishes at Melton Lake Park peninsula, USATF cert TN15066MS.
- 5K: starts at Melton Lake Park peninsula, route to Elza Gate Park, cert TN15077MS.
- Virtual Half Marathon: complete Nov 14 to Nov 28; swag mailed after Nov 28.
- Virtual 5K: registration ends Nov 28; complete Nov 14 to Nov 28.
The half marathon course runs along Melton Lake, passes an operational quarry, follows a tree-lined private road, and continues through Oak Ridge before returning to the peninsula. The 5K route follows the water's edge to Elza Gate Park and then doubles back along a walking trail to the peninsula. Packet pickup is scheduled the Thursday before the race at the Oak Ridge Chamber of Commerce and on race morning at the race site.
The organizer notes that refunds are not offered, but registration may be deferred up until race morning. Donations support the Keystone Adult Day Program; recorded fundraising shows $1,604 raised toward a $3,000 goal. Visit the organization's website for the most recent information.
