But Libertine, there are only so many 30km races during the season. There's usually one or two. During championship seasons it's two. In 2016 Johaug won the 30km in Oslo by 3:46 over Østberg and 4:16 over Kyllönen. That was probably the peak of her dominance though, she skied away after only a kilometer or so and the conditions were quite tricky and relatively soft and it was under a fog. It was a bit foggy today, but the conditions didn't seem as tricky. So what was the difference, besides four years? It's not a question anyone needs to answer, but it's intriguing.
I've never seen that many chasers, since ironically that 2016 race, in a women's field. Usually you have Johaug leading and sometimes one of the Norwegians or a Swede or Parmakoski, Nepryaeva with her for a while, and then you have smaller groups or pairs chasing. Today it was a group that was established before the halfway point and they skied together until about 23km when a couple of them started to drop off. Johaug's lead never reached a minute, the maximum she gained was 53 seconds, incidentally that was the stadium split at 20.1 km when the Swedes and Pärmakoski changed skis. Karlsson and Andersson were at 58 and 59 seconds behind Johaug. Kalla was 1:04 behind the Norwegian and at back of that big chasing group. That's when Johaug's lead started to drop. She lost time to a lot of those from the chasing group, but not as much as she did to the Swedes, who obviously benefitted greatly from the fresh skis. To be fair, they were the strongest of that group, so perhaps even without changing their skis they would have finished 2nd and 3rd, but with the ski change it was like a new race that started. Kalla likely wouldn't have finished 4th had she not changed her skis, though she did look better than she's looked almost all season.
It would have been interesting to see what would have happened if everyone in that group decided to change skis. I was surprised that the other Finns didn't follow Krista into the pit stop. Also surprised that Nepryaeva didn't change either, as she seemed to have the slowest skis in that group, yet she finished in 5th after being towards the back for much of the race. Wonder if she would have challenged the Swedes with fresh skis.