Frida Karlsson led a Swedish one-two in the first ever women’s 50 kilometres cross country ski World Cup race in classic style on Saturday in Oslo where Norway’s Ida Marie Hagen then clinched the women’s Nordic combined World Cup title. Karlsson broke a leader group at the famed Holmenkollen ski centre after 30km to triumph in 2 hours 20 minutes 20.3 seconds for an 11th career victory. Andersson was 1:19.3 adrift and Germany’s Katharina Hennig won a sprint for third, another 5.9 seconds back. American World Cup leader Jessica Diggins was 11th, more than four minutes off the pace. “It was a lot…