Looking through the Tour de France results today led me to notice that the green jersey standings, for the most points accumulated in the tour, includes only 119 riders while 160 riders in the general classification for the overall tour victory (the yellow jersey).
It strikes me as odd that only one rider in the points classification, Lilian Jegou, has zero points, while six are in minus figures. I don't understand that.
This brings me to ask:
1. Why aren't all of the riders who have not scored points due to their performances in sprints and stages on zero?
2. Why are six riders in minus numbers? What have they done to earn a minus mark?
Can anyone explain?