RUMFORD, Maine – Following a nail-biter of a skate sprint to open the U.S. Cross Country Championships, the athletes contesting Sunday’s classic sprint can be expected to finish out the week with another great race. And with important U23 Championship qualifying points still up for grabs, the younger skiers especially will be looking to fight to the top spot on the podium. Athletes have been racing and training on the 1.4 and 1.6 k sprint...