According to Velon, he averaged 440 watts for the 20 mins beginning with his attack.
The final 20 minutes? He sure also powered a lot in the opening part of the stage, putting the hurt on Ganna on the hill, the descent and even the flats and then being the prime motor in keeping Groupama at bay. And then again starting with the hills, keeping the favourites off even though they were so close for such a long time. Man, you could write a book about today's stage. Truly, truly special. I am so happy to have watched that show from beginning to end.