CRAFTSBURY, Vt. – Shaking out the legs, clicking into their skis and moving their bodies just before the Friday’s 30-kilometer mass start at U.S. Distance Nationals, about 50 women looked straight ahead, all likely thinking the same thing. This is it. One more and we’re done. Some prepared for 20 times around a 1.5 k loop thinking each was a victory lap. Afterward, they’d be finished for the season. Four to five months of racing...