Johaug went 10 kilometers freestyle in Norwegian Konnerud at the unlikely fast time 21 minutes and 33 seconds.
"It's an unofficial world record," says NRK's expert Torgeir Björn, according to VG.
He says that no woman has traveled 10 kilometers freestyle faster than Johaug did at the NM.
The bronze went to Tiril Udnes Weng.
Krogh: "It means everything"On the men's side it was a surprising victory in Finn Hågen Krogh. The 29-year-old has had a tough season and if the results were not to come he might have been pipped from the rest of the World Cup season.
- It means everything. I have been feeling in good shape lately, so I was excited about what it would do. Maybe it wouldn't be gold I didn't think, says Krogh, who won 15 kilometers of freestyle.
On the men's side the silver went to Harald Östberg Amundsen and the bronze to Jan Thomas Jenssen. Gold was Krogh's third in his career.