I had been told it would be flat but this here was the only flat stretch all day. Constant rolling hills and so many times I thought now it must be the last - but it never was. The wind behaved very strange the whole day jumping from 30 to 60 to 40 to 20 to 50 k/h but always a straight NE headwind. Maybe because of the hills because when I reached the flat stretch it was constant strong as always...