US alpine skier Mikaela Shiffrin’s bad run at the Beijing Winter Games continued on Wednesday. Shiffrin missed the fourth gate in the first run of the slalom, recording the first DNF (did not finish) of the race. The 26-year-old sat on the snow with her head in her hands in disbelief. “I was pushing out of the start. I had full intentions of skiing as hard as I could,” she said following the race. “I slipped up a little bit on one turn and I just didn’t give myself room to make any kind of error like that. I was planning to go on the most aggressive line, the most challenging line to ski,” Shi…