Secret City Half Marathon
Race Day Weather
Cool conditions, steady pace
Runners will face a cool start at 40°F, warming to 59°F by the finish. Winds from the SSW at 5 mph will be light, with gusts reaching 15 mph. With humidity at 55%, conditions are favorable, allowing for a steady pace throughout, with no need for hydration adjustments.
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Race Info
The Secret City Half Marathon and 5K takes place each November in Oak Ridge, Tennessee, a city built in secrecy during World War II for the Manhattan Project. Both courses start and finish at the Melton Lake Park peninsula. The half marathon runs along Melton Lake, past an operational quarry, and down a tree-lined private road before returning along the water to the finish. The 5K stays along the Melton Lake walking trail out to Elza Gate Park and back.