VERNON, British Columbia — After five years on the NorAm Cup circuit, all Kevin Sandau needed was a little verification. Seeded first and the last to start in the men’s 15 k classic individual start on Sunday at Sovereign Lake, that meant something. The 23-year-old, who recently returned from several weeks of racing in World Cup and FIS races, had never started last in a Continental Cup race before. He had also never won one....