Secret City Half Marathon

Lace up for the Secret City Half Marathon on November 14, 2026, in historic Oak Ridge, Tennessee. This USATF-certified 13.1-mile race offers runners a unique blend of scenic waterfront views and a glimpse into the city's intriguing "Secret City" past, born from its pivotal role in the Manhattan Project. Starting and finishing at the picturesque Melton Lake Park peninsula, the course is often described as mostly flat, though runners can expect some gentle rolling hills to keep the challenge engaging. Typical race day conditions in mid-November bring crisp air, with highs around 59°F and lows near 37°F, and a low chance of precipitation, creating ideal running weather.

The course itself is a journey of varied landscapes. Runners will enjoy stretches along the beautiful Melton Lake before transitioning to a distinctive section passing an operational quarry, offering a change of scenery. The route continues along serene, tree-lined private roads and winds through the charming streets of Oak Ridge, providing a mix of natural beauty and urban exploration. Aid stations, fully stocked with water, Gatorade, and Honey Stinger gels, are strategically placed approximately every two miles, ensuring runners are well-supported throughout the event. You'll find enthusiastic volunteers and police presence at turns and intersections, guiding you along the way.

Whether you're chasing a personal record or seeking an enjoyable late-fall race experience, the Secret City Half Marathon provides a well-organized event with a distinctive atmosphere. The course concludes with a rewarding finish along the water's edge back at the Melton Lake Park peninsula, offering a scenic conclusion to your effort. With a generous 3.5-hour time limit, this race is welcoming to a variety of paces, inviting you to discover the charm and history of Oak Ridge one stride at a time.