Nathan Chen shattered the world record during his short program at the Beijing Olympics—scoring 113.97 Tuesday to beat the previous mark of his nemesis Yuzuru Hanyu and put himself in a position to win his elusive gold medal. The 22-year-old Chen avenged his poor performance from the last Olympics and opened with a perfect quad flip, made short work of a tricky triple axel, and then landed his quad flip-triple toe loop combo in an awe-inspiring performance. Chen’s total was nearly six points ahead of second-place Yuma Kagiyama and nearly 20 ahead of two-time Olympic champion Hanyu. “I was just…