Johaug cracked the 30k wide open early on, nobody was going to catch her. However, for at least 15k there was a six person pack competing for the other medals, often with Jessie leading the way. Slowly people dropped off the back, and at 22k the chase pack was down to just three skiers with another chase pack - including Olympic gold medalist Kalla - gunning for them. At 23k Jessie was dropped, and the next 7k were all about digging deep, and holding off the chase pack. Her fourth place was a real testament to her grit.
The men's 50k just started so I need to check the live timing results.