Norway’s Therese Johaug had a lonely race against the elements as she completed a golden Beijing Games treble in her last career Olympic race, over 30 kilometres on Sunday. Johaug, 33, broke a small leader group at around 9km and steadily increased her lead en route to victory in windy and freezing conditions. Her only problem was properly unfurling a Norwegian flag in the stadium before crossing the line in 1 hour 24 minutes 54.0 seconds. American Jessica Diggins held on to add silver to sprint bronze, trailing by a massive 1:43.3 minutes. The 2018 team sprint champion now has a full Olympic …