Race day four at Sovereign Lake was a 10km individual start classic in the sunshine. With humid new snow at -10C all day while the air warmed up to -4C, all the teams found fast skis and solid kick on a great day for striding. Once again, the Open and U20 categories skied 2x5km first, followed by U18 and U16 who skied 2×2.5km, for a total of 385 starters Sunday. Individual start races are about...