Secret City Half Marathon
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Secret City Half Marathon and 5K
The event includes in person and virtual race options based at the Melton Lake Park peninsula in Oak Ridge, Tennessee. The event date for on site races is November 14, 2026.
The half marathon course starts at the Melton Lake Park peninsula and runs along Melton Lake. The route passes an operational quarry, continues along a tree lined private road, winds through Oak Ridge, and finishes along the water's edge back at the peninsula. The half marathon course is USATF certified with certification number TN15066MS.
The 5K course starts and finishes at the Melton Lake Park peninsula. It follows the water's edge along Melton Lake to Elza Gate Park and then doubles back along the walking trail to the peninsula. The 5K course is USATF certified with certification number TN15077MS.
Available distances
- 13.1 Miles Secret City Half Marathon
- 5K Secret City 5K
- 13.1 Miles Virtual Secret City Half Marathon
- 3.1 Miles Virtual Secret City 5k
In person registration opens 1/1/2026 and closes 1/8/2026; registration fees are $45 for the half marathon and $25 for the 5K. Virtual registration opens 1/1/2026 and closes 11/28/2026; virtual fees are $60 for the half and $35 for the 3.1 mile event. Visit the organization's website for the most recent information.
