 While the official roster will be released July 8th, including the 4x400 meter relay pool, Quincy Wilson wrote on Instagram Sunday, we going to the Olympics. His coach confirmed the selection to multiple media outlets. Last week at Olympic trials, Quincy Wilson broke the world record for runners under 18 in the 400 meters twice. At age 16, he's around one year younger than Jim Ryan was at the 1964 Summer Games, when he had become the youngest member of a U.S. track team. Jared Max, Fox News.