21-year-old jordan spieth took the first-day honours with a stunning opening round of 64 on a spectacular day of scoring at the sun-baked 79th masters .
for much of the day it looked as if he might have to share top billing with 34-year-old justin rose and 45-year-old ernie els , as the englishman and the south african posted scores of 67 to tie charley hoffman , an american representative of the rank and file .