Originally published in Vaulter Magazine, September 2015 by Adele Correale San Miguel When Harrison Williams grabbed a pole as a gangly 15-year-old to compete in his first decathlon, no one believed he had the strength to sprint down the runway and haul himself over the bar, let alone triumph in the other nine events. He was only running track to stay in shape for his main sport, basketball. Harrison had never vaulted, nor attempted seven of the ten events that…